132 MODEL AVIATION
LOOK ON THE BRIGHT SIDE: Some are lamenting the fact
that modelers in the US are not developing model-building skills,
but are relying on prebuilt models for everything from sport Radio
Control flying to competition Free Flight. On the bright side, we are
helping to develop a whole generation or two of skilled model
builders in China, Mexico, and Eastern Europe!
However, if the notes I received with plans requests are any
indication, there will be plenty of grandkids flying Pollywogs this
summer.
Are you a member of the Flying Aces Club (FAC)? Why not? If
you want to fly rubber-powered Scale models, you need to belong
to the club. It hosts the largest Rubber Scale contests in the country.
The bimonthly newsletter costs $15 per year. Each issue is
packed with articles, plans, and information about area contests.
Enclose an extra dollar and a self-addressed, stamped envelope
(SASE), and you will receive a listing of all FACs across the
country.
Join a club in your area and enjoy learning and flying with the
rest of us. Mail your dues to Lin Reichel, commander-in-chief,
FAC GHQ, 3301 Cindy Ln., Erie PA 16506.
Sig Cubs I Have Known: Among the Pollywog plans requests was
a note asking me to take a look at the Sig Cub and see what could
be done to improve its performance. I bought a Sig Cub kit (not to
be confused with the AMA Cub also kitted by Sig); at less than $7,
it is a real bargain. The wood is a bit heavy, but it’s okay for a
trainer. The instructions are excellent. All a beginner has to do is
check a box beside each step as it is completed.
The instructions advise attaching the tissue with clear dope,
which is a tried-and-true method. Instead, I used an Elmer’s blue
glue stick. It is quick, easy, cheap, and doesn’t stink up the house!
The tissue in the kit is porous, so it is important that it is sealed
after the wing and tail feathers are covered. The instructions advise
using clear dope to seal the tissue. Another option is to obtain a can
of Krylon Crystal Clear spray 3301. Apply a couple of light coats
to the wing and tail surfaces.
After the wing has dried, try the following experiment. Put
your lips close to a piece of unpainted scrap tissue and blow. The
air will go right through the tissue. Do the same thing to your
Gene Smith, 1401 N. Husband St., Stillwater OK 74075; E-mail: [email protected]
FREE FLIGHT SPORT
The Sig Mini-Maxer is pretty in pink. It is a great flier. Don’t forget
the dethermalizer, or you will be building another.
Who is that optimistic pilot in the Sig Cub? SpongeBob
SquarePants! The text has suggestions for improving this model.
Steve Griebling’s Arado Ar.66 has placed twice at FAC Nats. Has
attractive brown-and-white scheme with yellow fuselage band.
Texas Timer is ready to go. Author “gooped” 3-inch piece of
yellow yarn to brass winding tool in case it falls in grass.
08sig5.QXD 5.23.03 12:36 pm Page 132
August 2003 133
painted wing and the air will bounce back.
That demonstrates the need to seal the tissue if you want your
model to fly properly. The wing won’t generate much lift if the air
goes through it rather than over it. Better-quality tissue is not as
porous, but it will still benefit from being sealed with dope or clear
Krylon.
The motor/propeller combination can be modified to improve
the Cub’s performance and is a fun area for experimentation. I
elected to leave off the wire “motor can” in the middle of the
fuselage, and instead I braided each of the three motors I used.
The instructions suggest making the enclosed 1⁄8-inch rubber
strip into a four-loop, eight-strand motor. This is roughly
equivalent to putting a 350 V8 in a Volkswagen Beetle; there is a
great deal of power there, but the wheels are too small and will
waste a lot of energy “burning rubber.”
When winding a motor this size, you will want a good winder. I
like the Scalewinder that HiLine sells. Contact Dave or Marie Rees
at (919) 778-6653 or send a buck for a catalog to Box 11558,
Goldsboro NC 27532.
After trimming the model on fewer winds, I put 450 turns into
the four-loop motor. The model blasted into the air, and most of the
energy was used to hang on the propeller. The motor run was 12
seconds, and the model traveled roughly 60 feet downwind.
I unbraided the motor and braided it as a six-strand motor. I was
able to increase the winds to 650. The motor run was marginally
longer. However, the model ended up at approximately the same
altitude with an energy-wasting steep climb.
I took down the same motor and braided it again, this time with
Clarence Mather’s beautiful 35-inch-span Shturmovik is ready for
covering. Lines and areas are ideal for rubber power.
Ralph Snow advised author of source for Black Bullet’s neat decal
logo. Ralph has Rubber and Electric versions of the model.
Beep
Beep
Beep
Beep
Beep
Beep
Beep
Beep
WALSTON RETRIEVAL SYSTEMS
725 Cooper Lake Rd., S.E., Smyrna, GA 30082
770-434-4905 800-657-4672 Fax 770-431-0119
Visa • MC • AmEx • Disc
e-mail [email protected]
Call Now.
$18.95
per pair
MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
It’s Time To Get a Grip
On Your Flying.
High quality transmitter knobs
offer more precise control
and feel.
Produced from
light weight
aluminum.
Black anodized
to assure long
lasting performance.
Features:
•Knurled on sides and
recessed on top for better
feel.
• They fit most popular
transmitters...Futaba, HiTec,
Airtronics, JR & others.
TRANSMITTER KNOBS
Our Full-Size Plans List has hundreds
of models to choose from.
See page 191 for details.
08sig5.QXD 5.23.03 12:36 pm Page 133
two loops. I was able to put 1,500 turns into
this motor. The motor run exceeded 30
seconds; the model was up well past a
minute, it caught some air, and it came
down 300 yards from the launch site. That
was good enough for me.
The two-loop motor is better suited for
the 7-inch propeller. The three-loop motor
is a good choice for kids. The model gets
good altitude with few winds, and the chase
is short. If you want to try to achieve
another level of performance, replace the 7-
inch kit propeller with an 8- or 91⁄2-inch
Peck-Polymers propeller.
Use a motor with two loops of 1⁄8-inch
rubber, and see what you get. You might
want to put your name and address on the
model first! Then try the Sig Mini-Maxer; it
has provisions for a dethermalizer.
Adventures in Building the Sig Mini-
Maxer and Using Easy Built Tissue:
Construction was straightforward once I
replaced all of the kit wood with lighter
stock. The plans were clear and instructions
were good. Just follow the dots. Good
white tissue was provided in the kit, but I
wanted to use something colorful.
Last summer at the FAC Nationals
(Nats) I purchased an assortment of tissue
from Easy Built Models. I was prepared to
be unimpressed because it looked like just
another domestic tissue. Many of the colors
in the assortment are drab browns, greens,
or shades of blue, all of which would work
well for military models.
However, there was an incredibly bright
sheet of pink, and I selected it for the Mini-
Maxer. A single sheet was large enough to
cover the model with plenty to spare. The
covering has a shiny side and a dull side,
and I placed the dull side down. I applied
the tissue dry using an Elmer’s blue glue
stick. Much to my surprise, all of the
wrinkles vanished when I shrunk the
covering with a mist of water.
Be careful because the glue stick is
water and alcohol soluble. After misting the
tissue for shrinking, dry it rapidly with a
hair dryer so the glue has no chance to
come loose. Dampen the tissue on the top
and bottom of the wing and stabilizer.
Switch the dryer from one side to the other
as you dry it. This will help prevent
warping the structure.
I was very pleased with the Easy Built
Models tissue. It isn’t Japanese-tissue
quality, but it is a great option for sport
models. I finished the model with two light
coats of Krylon Crystal Clear spray.
Rather than cut out a rudder tab as
shown on the plans, I installed a 1⁄2-inchlong
piece of thin trailing-edge stock on the
right side of the subfin for power and glide
turn to the right.
A 7-inch propeller is included in the kit.
I opted instead for an 8-inch Peck-Polymers
gray propeller and used a latch
freewheeling device. My model weighed 31
grams without the rubber motor. You did
use light wood, right?
I used two braided 30-inch loops of 1⁄8-
inch rubber, which made a good motor for a
moderate climb and long motor run. For
more “punch,” George Perryman preferred
a motor made from two 20-inch loops of 1⁄8-
inch rubber and one 20-inch loop of 1⁄16-
inch rubber. George passed away in
February; he will be missed.
Adventures in Trimming the Sig Mini-
Maxer: I expected this to be a lead-pipe
cinch. I went out to the back yard for some
initial test glides with 30 or so hand winds.
The model was given a level launch at
gliding speed, and doink! (A “doink” is
Okie for “bad dive.”) Wait a minute! Where
was the expected gentle descent to a spot on
the yard 40 feet away? So much for my
expectations.
I had checked the wing and stabilizer for
warps, the decalage was 3°, and the model
balanced with the rubber motor as shown
on the plans. It must have been a bad
launch. I launched it the second time, and
doink! What was going on here? The
decalage had been double-checked and was
correct. There were no bad warps. So I
thought the center of gravity (CG) must be
wrong.
I added clay to the tail until a decent
glide was obtained, then I marked the new
CG on the wing 23⁄4 inches behind the wing
leading edge. I removed the clay from the
tail, removed the wing hold-down dowels,
and strapped the wing to the fuselage with
134 MODEL AVIATION
RADIO SOUTH INC.
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Contains 4 1300 mah battery cells, senses when plug is fouled & boosts power.
LED bar garaph meter display on plug condition. Supports Futaba “J” chargers.
Retail Price $69.95
PRO-DRIVER MARK II
With auto shut down.
Retail Price $79.95 PRO-HINGES
Easiest Hinge to Install.
(for use with cyanocrylate adhesives)
RC- $2.49/pkg. 18 • 1/4 Scale - $2.79/pkg. 24 3702 N Pace, Pensacola, FL 32505
Toll Free Order Line (Orders Only Please) 800-962-7802
Repair and Information . . . . . . . . . . . . . . . . . . 850-434-0909 or visit our website at http://www.radiosouthrc.com
If not available at your local hobby shop, order
direct. DEALER INQUIRIES INVITED.
Special Paper
Plastic
Special Paper
MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
•Fits most
transmitters with
a wire handle.
•The stand is made from
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•Clamps the transmitter
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•Includes colorful,
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and all hardware.
transmitter not included.
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08sig5.QXD 5.23.03 12:37 pm Page 134
rubber bands. Then I moved the wing
forward until the model balanced at the new
CG mark on the wing. I reinstalled the wing
hold-down dowels at the new wing
position.
After encountering the CG problem, I
wrote a note to George and he confirmed
that the CG should be 23⁄4 inches behind the
wing leading edge at the center of the wing.
I began power testing with 300 winds,
resulting in a right power pattern which was
slightly more open than I wanted. The glide
turn was good. I added a 1⁄64-inch shim to
the left side of the nose block, resulting in a
nice right climb under power and in the
glide, and voilà!
That pink tissue shows up well in the air
and on the ground. The dethermalizer
proved its worth on the first flight with full
winds. Thanks, George! You did good.
One of My Favorite Newsletters: When I
was at an FAC Nats years ago, Russ
Brown, the editor of Crosswinds,
approached me. He was offering
subscriptions to the publication, which is
the newsletter of the Cleveland Free Flight
Society. I subscribed on the spot and have
enjoyed Crosswinds ever since.
This newsletter features one Scale
design in each issue—usually in great detail
and with good documentation. Sometimes
there are multiple-size plans for the same
design in one issue. You get four issues
each year for $16, and they are well worth
the expense if you like rubber-powered
Scale.
Send dues to Russ Brown at 4909 N.
Sedgewick Rd., Lyndhurst OH 44124. Ask
him about the Cleveland Free Flight
Society’s incredible archives. You are sure
to find several back issues of interest
among the more than 100 on the list.
Steve Griebling’s beautiful 191⁄2-inchspan
Arado Ar.66 biplane was featured in
Crosswinds 102, which came out in June
last year. The model uses a propeller carved
from a 11⁄4 x 3⁄4 x 9-inch poplar blank.
Weight without motor is 34 grams, and
power is four braided strands of 3⁄16-inch
rubber weighing 13 grams.
The airplane has great lines for a rubberpowered
biplane, including a long nose.
The color scheme is unique; most of the
fuselage is brown, the top surfaces are
white, and there is a yellow band around the
fuselage.
This model is eligible to fly in FAC
between-wars military events. Steve flew to
a fifth-place finish with the Arado at the
FAC Nats in 2000 and 2002. He had great
performances in tough competition.
Russian Tank Buster: Master modeler
Clarence Mather is about to finish a 35-
inch-span Jumbo Scale Russian
Shturmovik. This is his second Shturmovik;
the first was published in American Aircraft
Modeler magazine in 1970.
Clarence has a long history of success in
Free Flight competition, from Indoor
microfilm models (he was on a US Indoor
team) to Mulvihill and P-30. He has built
Indoor and Outdoor Scale models for many
years.
For several years Clarence has been
using a technique with laminated balsa
strips spiral-wrapped over a foam form,
resulting in a strong, light fuselage. The
foam is removed as stringers are placed.
His success has inspired me to try the
technique on a P-38.
Texas Timers Line Continues Expansion:
Hank Nystrom released a three-function
timer this spring. The third function allows
a variable incidence tail and/or autorudder.
His popular Texas Max series is now
available with a built-in pinch-off for those
who don’t like rigging a remote pinch-off.
The Texas Micro is perfect for that .020 or
.049 where weight savings is important.
Check out Hank’s Web site at
www.texastimers.com or E-mail him at
[email protected]. If you don’t have a
computer, send a self-addressed, stamped
envelope to Texas Timers, 3317 Pine
Timbers Dr., Johnson City TN 37604.
The Black Bullet logo is an example of the
custom decal or vinyl work that Vinyl
Graphics by Greg can produce. Write to
212 Freedom Ln., Arlington TX 76002, or
check with Greg online at www.vinyl
graphicsbygreg.com. He is used to doing
custom work for modelers. MA
August 2003 135
MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
•Fits most
transmitters with
wire handle.
•The stand is made
from stainless
steel so it will not
rust or break.
• It allows pilot to
view his controls
and information
screen clearly while
he starts his engine.
TRANSMITTER
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1 lb. box $2350, 10 lb. box $16600 Post Paid (USA).
TAN SUPER SPORT RUBBER
1 lb. box $2700, 10 lb. box $19100 Post Paid (USA).
• Made in U.S.A. •
“Superdog” AFR $22.50, “Hangar Rat” ARTF $25.00,
Bulldog ARF $20.00, electric lighters $6.00. Front
ends, winders, stooges, Books, Czech P30
props, Slick Lube, CROCKETT hooks, “Butterfly”
RTF indoor $20.00, “Super Butterfly” $21.00, huge
bunch of great FF kits, and Zona Saws.
COUPE & WAKEFIELD
PARTS, KITS, RTF
F.A.I. Model Supply
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Basic
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Hi Tech
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08sig5.QXD 5.23.03 12:37 pm Page 135
Edition: Model Aviation - 2003/08
Page Numbers: 132,133,134,135
Edition: Model Aviation - 2003/08
Page Numbers: 132,133,134,135
132 MODEL AVIATION
LOOK ON THE BRIGHT SIDE: Some are lamenting the fact
that modelers in the US are not developing model-building skills,
but are relying on prebuilt models for everything from sport Radio
Control flying to competition Free Flight. On the bright side, we are
helping to develop a whole generation or two of skilled model
builders in China, Mexico, and Eastern Europe!
However, if the notes I received with plans requests are any
indication, there will be plenty of grandkids flying Pollywogs this
summer.
Are you a member of the Flying Aces Club (FAC)? Why not? If
you want to fly rubber-powered Scale models, you need to belong
to the club. It hosts the largest Rubber Scale contests in the country.
The bimonthly newsletter costs $15 per year. Each issue is
packed with articles, plans, and information about area contests.
Enclose an extra dollar and a self-addressed, stamped envelope
(SASE), and you will receive a listing of all FACs across the
country.
Join a club in your area and enjoy learning and flying with the
rest of us. Mail your dues to Lin Reichel, commander-in-chief,
FAC GHQ, 3301 Cindy Ln., Erie PA 16506.
Sig Cubs I Have Known: Among the Pollywog plans requests was
a note asking me to take a look at the Sig Cub and see what could
be done to improve its performance. I bought a Sig Cub kit (not to
be confused with the AMA Cub also kitted by Sig); at less than $7,
it is a real bargain. The wood is a bit heavy, but it’s okay for a
trainer. The instructions are excellent. All a beginner has to do is
check a box beside each step as it is completed.
The instructions advise attaching the tissue with clear dope,
which is a tried-and-true method. Instead, I used an Elmer’s blue
glue stick. It is quick, easy, cheap, and doesn’t stink up the house!
The tissue in the kit is porous, so it is important that it is sealed
after the wing and tail feathers are covered. The instructions advise
using clear dope to seal the tissue. Another option is to obtain a can
of Krylon Crystal Clear spray 3301. Apply a couple of light coats
to the wing and tail surfaces.
After the wing has dried, try the following experiment. Put
your lips close to a piece of unpainted scrap tissue and blow. The
air will go right through the tissue. Do the same thing to your
Gene Smith, 1401 N. Husband St., Stillwater OK 74075; E-mail: [email protected]
FREE FLIGHT SPORT
The Sig Mini-Maxer is pretty in pink. It is a great flier. Don’t forget
the dethermalizer, or you will be building another.
Who is that optimistic pilot in the Sig Cub? SpongeBob
SquarePants! The text has suggestions for improving this model.
Steve Griebling’s Arado Ar.66 has placed twice at FAC Nats. Has
attractive brown-and-white scheme with yellow fuselage band.
Texas Timer is ready to go. Author “gooped” 3-inch piece of
yellow yarn to brass winding tool in case it falls in grass.
08sig5.QXD 5.23.03 12:36 pm Page 132
August 2003 133
painted wing and the air will bounce back.
That demonstrates the need to seal the tissue if you want your
model to fly properly. The wing won’t generate much lift if the air
goes through it rather than over it. Better-quality tissue is not as
porous, but it will still benefit from being sealed with dope or clear
Krylon.
The motor/propeller combination can be modified to improve
the Cub’s performance and is a fun area for experimentation. I
elected to leave off the wire “motor can” in the middle of the
fuselage, and instead I braided each of the three motors I used.
The instructions suggest making the enclosed 1⁄8-inch rubber
strip into a four-loop, eight-strand motor. This is roughly
equivalent to putting a 350 V8 in a Volkswagen Beetle; there is a
great deal of power there, but the wheels are too small and will
waste a lot of energy “burning rubber.”
When winding a motor this size, you will want a good winder. I
like the Scalewinder that HiLine sells. Contact Dave or Marie Rees
at (919) 778-6653 or send a buck for a catalog to Box 11558,
Goldsboro NC 27532.
After trimming the model on fewer winds, I put 450 turns into
the four-loop motor. The model blasted into the air, and most of the
energy was used to hang on the propeller. The motor run was 12
seconds, and the model traveled roughly 60 feet downwind.
I unbraided the motor and braided it as a six-strand motor. I was
able to increase the winds to 650. The motor run was marginally
longer. However, the model ended up at approximately the same
altitude with an energy-wasting steep climb.
I took down the same motor and braided it again, this time with
Clarence Mather’s beautiful 35-inch-span Shturmovik is ready for
covering. Lines and areas are ideal for rubber power.
Ralph Snow advised author of source for Black Bullet’s neat decal
logo. Ralph has Rubber and Electric versions of the model.
Beep
Beep
Beep
Beep
Beep
Beep
Beep
Beep
WALSTON RETRIEVAL SYSTEMS
725 Cooper Lake Rd., S.E., Smyrna, GA 30082
770-434-4905 800-657-4672 Fax 770-431-0119
Visa • MC • AmEx • Disc
e-mail [email protected]
Call Now.
$18.95
per pair
MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
It’s Time To Get a Grip
On Your Flying.
High quality transmitter knobs
offer more precise control
and feel.
Produced from
light weight
aluminum.
Black anodized
to assure long
lasting performance.
Features:
•Knurled on sides and
recessed on top for better
feel.
• They fit most popular
transmitters...Futaba, HiTec,
Airtronics, JR & others.
TRANSMITTER KNOBS
Our Full-Size Plans List has hundreds
of models to choose from.
See page 191 for details.
08sig5.QXD 5.23.03 12:36 pm Page 133
two loops. I was able to put 1,500 turns into
this motor. The motor run exceeded 30
seconds; the model was up well past a
minute, it caught some air, and it came
down 300 yards from the launch site. That
was good enough for me.
The two-loop motor is better suited for
the 7-inch propeller. The three-loop motor
is a good choice for kids. The model gets
good altitude with few winds, and the chase
is short. If you want to try to achieve
another level of performance, replace the 7-
inch kit propeller with an 8- or 91⁄2-inch
Peck-Polymers propeller.
Use a motor with two loops of 1⁄8-inch
rubber, and see what you get. You might
want to put your name and address on the
model first! Then try the Sig Mini-Maxer; it
has provisions for a dethermalizer.
Adventures in Building the Sig Mini-
Maxer and Using Easy Built Tissue:
Construction was straightforward once I
replaced all of the kit wood with lighter
stock. The plans were clear and instructions
were good. Just follow the dots. Good
white tissue was provided in the kit, but I
wanted to use something colorful.
Last summer at the FAC Nationals
(Nats) I purchased an assortment of tissue
from Easy Built Models. I was prepared to
be unimpressed because it looked like just
another domestic tissue. Many of the colors
in the assortment are drab browns, greens,
or shades of blue, all of which would work
well for military models.
However, there was an incredibly bright
sheet of pink, and I selected it for the Mini-
Maxer. A single sheet was large enough to
cover the model with plenty to spare. The
covering has a shiny side and a dull side,
and I placed the dull side down. I applied
the tissue dry using an Elmer’s blue glue
stick. Much to my surprise, all of the
wrinkles vanished when I shrunk the
covering with a mist of water.
Be careful because the glue stick is
water and alcohol soluble. After misting the
tissue for shrinking, dry it rapidly with a
hair dryer so the glue has no chance to
come loose. Dampen the tissue on the top
and bottom of the wing and stabilizer.
Switch the dryer from one side to the other
as you dry it. This will help prevent
warping the structure.
I was very pleased with the Easy Built
Models tissue. It isn’t Japanese-tissue
quality, but it is a great option for sport
models. I finished the model with two light
coats of Krylon Crystal Clear spray.
Rather than cut out a rudder tab as
shown on the plans, I installed a 1⁄2-inchlong
piece of thin trailing-edge stock on the
right side of the subfin for power and glide
turn to the right.
A 7-inch propeller is included in the kit.
I opted instead for an 8-inch Peck-Polymers
gray propeller and used a latch
freewheeling device. My model weighed 31
grams without the rubber motor. You did
use light wood, right?
I used two braided 30-inch loops of 1⁄8-
inch rubber, which made a good motor for a
moderate climb and long motor run. For
more “punch,” George Perryman preferred
a motor made from two 20-inch loops of 1⁄8-
inch rubber and one 20-inch loop of 1⁄16-
inch rubber. George passed away in
February; he will be missed.
Adventures in Trimming the Sig Mini-
Maxer: I expected this to be a lead-pipe
cinch. I went out to the back yard for some
initial test glides with 30 or so hand winds.
The model was given a level launch at
gliding speed, and doink! (A “doink” is
Okie for “bad dive.”) Wait a minute! Where
was the expected gentle descent to a spot on
the yard 40 feet away? So much for my
expectations.
I had checked the wing and stabilizer for
warps, the decalage was 3°, and the model
balanced with the rubber motor as shown
on the plans. It must have been a bad
launch. I launched it the second time, and
doink! What was going on here? The
decalage had been double-checked and was
correct. There were no bad warps. So I
thought the center of gravity (CG) must be
wrong.
I added clay to the tail until a decent
glide was obtained, then I marked the new
CG on the wing 23⁄4 inches behind the wing
leading edge. I removed the clay from the
tail, removed the wing hold-down dowels,
and strapped the wing to the fuselage with
134 MODEL AVIATION
RADIO SOUTH INC.
PRO-DRIVER
Contains 4 1300 mah battery cells, senses when plug is fouled & boosts power.
LED bar garaph meter display on plug condition. Supports Futaba “J” chargers.
Retail Price $69.95
PRO-DRIVER MARK II
With auto shut down.
Retail Price $79.95 PRO-HINGES
Easiest Hinge to Install.
(for use with cyanocrylate adhesives)
RC- $2.49/pkg. 18 • 1/4 Scale - $2.79/pkg. 24 3702 N Pace, Pensacola, FL 32505
Toll Free Order Line (Orders Only Please) 800-962-7802
Repair and Information . . . . . . . . . . . . . . . . . . 850-434-0909 or visit our website at http://www.radiosouthrc.com
If not available at your local hobby shop, order
direct. DEALER INQUIRIES INVITED.
Special Paper
Plastic
Special Paper
MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
•Fits most
transmitters with
a wire handle.
•The stand is made from
black acrylic.
•Clamps the transmitter
securely.
•Includes colorful,
adjustable neck strap
and all hardware.
transmitter not included.
TRANSMITTER
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plus $4.95 s&h
Stop Holding Your
Transmitter!
08sig5.QXD 5.23.03 12:37 pm Page 134
rubber bands. Then I moved the wing
forward until the model balanced at the new
CG mark on the wing. I reinstalled the wing
hold-down dowels at the new wing
position.
After encountering the CG problem, I
wrote a note to George and he confirmed
that the CG should be 23⁄4 inches behind the
wing leading edge at the center of the wing.
I began power testing with 300 winds,
resulting in a right power pattern which was
slightly more open than I wanted. The glide
turn was good. I added a 1⁄64-inch shim to
the left side of the nose block, resulting in a
nice right climb under power and in the
glide, and voilà!
That pink tissue shows up well in the air
and on the ground. The dethermalizer
proved its worth on the first flight with full
winds. Thanks, George! You did good.
One of My Favorite Newsletters: When I
was at an FAC Nats years ago, Russ
Brown, the editor of Crosswinds,
approached me. He was offering
subscriptions to the publication, which is
the newsletter of the Cleveland Free Flight
Society. I subscribed on the spot and have
enjoyed Crosswinds ever since.
This newsletter features one Scale
design in each issue—usually in great detail
and with good documentation. Sometimes
there are multiple-size plans for the same
design in one issue. You get four issues
each year for $16, and they are well worth
the expense if you like rubber-powered
Scale.
Send dues to Russ Brown at 4909 N.
Sedgewick Rd., Lyndhurst OH 44124. Ask
him about the Cleveland Free Flight
Society’s incredible archives. You are sure
to find several back issues of interest
among the more than 100 on the list.
Steve Griebling’s beautiful 191⁄2-inchspan
Arado Ar.66 biplane was featured in
Crosswinds 102, which came out in June
last year. The model uses a propeller carved
from a 11⁄4 x 3⁄4 x 9-inch poplar blank.
Weight without motor is 34 grams, and
power is four braided strands of 3⁄16-inch
rubber weighing 13 grams.
The airplane has great lines for a rubberpowered
biplane, including a long nose.
The color scheme is unique; most of the
fuselage is brown, the top surfaces are
white, and there is a yellow band around the
fuselage.
This model is eligible to fly in FAC
between-wars military events. Steve flew to
a fifth-place finish with the Arado at the
FAC Nats in 2000 and 2002. He had great
performances in tough competition.
Russian Tank Buster: Master modeler
Clarence Mather is about to finish a 35-
inch-span Jumbo Scale Russian
Shturmovik. This is his second Shturmovik;
the first was published in American Aircraft
Modeler magazine in 1970.
Clarence has a long history of success in
Free Flight competition, from Indoor
microfilm models (he was on a US Indoor
team) to Mulvihill and P-30. He has built
Indoor and Outdoor Scale models for many
years.
For several years Clarence has been
using a technique with laminated balsa
strips spiral-wrapped over a foam form,
resulting in a strong, light fuselage. The
foam is removed as stringers are placed.
His success has inspired me to try the
technique on a P-38.
Texas Timers Line Continues Expansion:
Hank Nystrom released a three-function
timer this spring. The third function allows
a variable incidence tail and/or autorudder.
His popular Texas Max series is now
available with a built-in pinch-off for those
who don’t like rigging a remote pinch-off.
The Texas Micro is perfect for that .020 or
.049 where weight savings is important.
Check out Hank’s Web site at
www.texastimers.com or E-mail him at
[email protected]. If you don’t have a
computer, send a self-addressed, stamped
envelope to Texas Timers, 3317 Pine
Timbers Dr., Johnson City TN 37604.
The Black Bullet logo is an example of the
custom decal or vinyl work that Vinyl
Graphics by Greg can produce. Write to
212 Freedom Ln., Arlington TX 76002, or
check with Greg online at www.vinyl
graphicsbygreg.com. He is used to doing
custom work for modelers. MA
August 2003 135
MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
•Fits most
transmitters with
wire handle.
•The stand is made
from stainless
steel so it will not
rust or break.
• It allows pilot to
view his controls
and information
screen clearly while
he starts his engine.
TRANSMITTER
STAND
only
$12.95
Take A Stand Against
Transmitter Abuse!
F A I
MODEL SUPPLY
www.faimodelsupply.com
POLYSPAN, AIRSPAN, LITESPAN,
MICROLITES, MYLAR, TOMY TIMERS
F A I TAN SPORT RUBBER
1⁄4", 3⁄16", 1⁄8", 3⁄32" 1⁄16", .042 THICK
1 lb. box $2350, 10 lb. box $16600 Post Paid (USA).
TAN SUPER SPORT RUBBER
1 lb. box $2700, 10 lb. box $19100 Post Paid (USA).
• Made in U.S.A. •
“Superdog” AFR $22.50, “Hangar Rat” ARTF $25.00,
Bulldog ARF $20.00, electric lighters $6.00. Front
ends, winders, stooges, Books, Czech P30
props, Slick Lube, CROCKETT hooks, “Butterfly”
RTF indoor $20.00, “Super Butterfly” $21.00, huge
bunch of great FF kits, and Zona Saws.
COUPE & WAKEFIELD
PARTS, KITS, RTF
F.A.I. Model Supply
P O Box 366
Sayre, PA 18840-0366
Phone/Fax: 570-882-9873
Basic
Catalog
$3.00
Hi Tech
Catalog
$1.00
www.WirelessVideoCameras.com
Airborne Video Systems
08sig5.QXD 5.23.03 12:37 pm Page 135
Edition: Model Aviation - 2003/08
Page Numbers: 132,133,134,135
132 MODEL AVIATION
LOOK ON THE BRIGHT SIDE: Some are lamenting the fact
that modelers in the US are not developing model-building skills,
but are relying on prebuilt models for everything from sport Radio
Control flying to competition Free Flight. On the bright side, we are
helping to develop a whole generation or two of skilled model
builders in China, Mexico, and Eastern Europe!
However, if the notes I received with plans requests are any
indication, there will be plenty of grandkids flying Pollywogs this
summer.
Are you a member of the Flying Aces Club (FAC)? Why not? If
you want to fly rubber-powered Scale models, you need to belong
to the club. It hosts the largest Rubber Scale contests in the country.
The bimonthly newsletter costs $15 per year. Each issue is
packed with articles, plans, and information about area contests.
Enclose an extra dollar and a self-addressed, stamped envelope
(SASE), and you will receive a listing of all FACs across the
country.
Join a club in your area and enjoy learning and flying with the
rest of us. Mail your dues to Lin Reichel, commander-in-chief,
FAC GHQ, 3301 Cindy Ln., Erie PA 16506.
Sig Cubs I Have Known: Among the Pollywog plans requests was
a note asking me to take a look at the Sig Cub and see what could
be done to improve its performance. I bought a Sig Cub kit (not to
be confused with the AMA Cub also kitted by Sig); at less than $7,
it is a real bargain. The wood is a bit heavy, but it’s okay for a
trainer. The instructions are excellent. All a beginner has to do is
check a box beside each step as it is completed.
The instructions advise attaching the tissue with clear dope,
which is a tried-and-true method. Instead, I used an Elmer’s blue
glue stick. It is quick, easy, cheap, and doesn’t stink up the house!
The tissue in the kit is porous, so it is important that it is sealed
after the wing and tail feathers are covered. The instructions advise
using clear dope to seal the tissue. Another option is to obtain a can
of Krylon Crystal Clear spray 3301. Apply a couple of light coats
to the wing and tail surfaces.
After the wing has dried, try the following experiment. Put
your lips close to a piece of unpainted scrap tissue and blow. The
air will go right through the tissue. Do the same thing to your
Gene Smith, 1401 N. Husband St., Stillwater OK 74075; E-mail: [email protected]
FREE FLIGHT SPORT
The Sig Mini-Maxer is pretty in pink. It is a great flier. Don’t forget
the dethermalizer, or you will be building another.
Who is that optimistic pilot in the Sig Cub? SpongeBob
SquarePants! The text has suggestions for improving this model.
Steve Griebling’s Arado Ar.66 has placed twice at FAC Nats. Has
attractive brown-and-white scheme with yellow fuselage band.
Texas Timer is ready to go. Author “gooped” 3-inch piece of
yellow yarn to brass winding tool in case it falls in grass.
08sig5.QXD 5.23.03 12:36 pm Page 132
August 2003 133
painted wing and the air will bounce back.
That demonstrates the need to seal the tissue if you want your
model to fly properly. The wing won’t generate much lift if the air
goes through it rather than over it. Better-quality tissue is not as
porous, but it will still benefit from being sealed with dope or clear
Krylon.
The motor/propeller combination can be modified to improve
the Cub’s performance and is a fun area for experimentation. I
elected to leave off the wire “motor can” in the middle of the
fuselage, and instead I braided each of the three motors I used.
The instructions suggest making the enclosed 1⁄8-inch rubber
strip into a four-loop, eight-strand motor. This is roughly
equivalent to putting a 350 V8 in a Volkswagen Beetle; there is a
great deal of power there, but the wheels are too small and will
waste a lot of energy “burning rubber.”
When winding a motor this size, you will want a good winder. I
like the Scalewinder that HiLine sells. Contact Dave or Marie Rees
at (919) 778-6653 or send a buck for a catalog to Box 11558,
Goldsboro NC 27532.
After trimming the model on fewer winds, I put 450 turns into
the four-loop motor. The model blasted into the air, and most of the
energy was used to hang on the propeller. The motor run was 12
seconds, and the model traveled roughly 60 feet downwind.
I unbraided the motor and braided it as a six-strand motor. I was
able to increase the winds to 650. The motor run was marginally
longer. However, the model ended up at approximately the same
altitude with an energy-wasting steep climb.
I took down the same motor and braided it again, this time with
Clarence Mather’s beautiful 35-inch-span Shturmovik is ready for
covering. Lines and areas are ideal for rubber power.
Ralph Snow advised author of source for Black Bullet’s neat decal
logo. Ralph has Rubber and Electric versions of the model.
Beep
Beep
Beep
Beep
Beep
Beep
Beep
Beep
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MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
It’s Time To Get a Grip
On Your Flying.
High quality transmitter knobs
offer more precise control
and feel.
Produced from
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Black anodized
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Features:
•Knurled on sides and
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• They fit most popular
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Airtronics, JR & others.
TRANSMITTER KNOBS
Our Full-Size Plans List has hundreds
of models to choose from.
See page 191 for details.
08sig5.QXD 5.23.03 12:36 pm Page 133
two loops. I was able to put 1,500 turns into
this motor. The motor run exceeded 30
seconds; the model was up well past a
minute, it caught some air, and it came
down 300 yards from the launch site. That
was good enough for me.
The two-loop motor is better suited for
the 7-inch propeller. The three-loop motor
is a good choice for kids. The model gets
good altitude with few winds, and the chase
is short. If you want to try to achieve
another level of performance, replace the 7-
inch kit propeller with an 8- or 91⁄2-inch
Peck-Polymers propeller.
Use a motor with two loops of 1⁄8-inch
rubber, and see what you get. You might
want to put your name and address on the
model first! Then try the Sig Mini-Maxer; it
has provisions for a dethermalizer.
Adventures in Building the Sig Mini-
Maxer and Using Easy Built Tissue:
Construction was straightforward once I
replaced all of the kit wood with lighter
stock. The plans were clear and instructions
were good. Just follow the dots. Good
white tissue was provided in the kit, but I
wanted to use something colorful.
Last summer at the FAC Nationals
(Nats) I purchased an assortment of tissue
from Easy Built Models. I was prepared to
be unimpressed because it looked like just
another domestic tissue. Many of the colors
in the assortment are drab browns, greens,
or shades of blue, all of which would work
well for military models.
However, there was an incredibly bright
sheet of pink, and I selected it for the Mini-
Maxer. A single sheet was large enough to
cover the model with plenty to spare. The
covering has a shiny side and a dull side,
and I placed the dull side down. I applied
the tissue dry using an Elmer’s blue glue
stick. Much to my surprise, all of the
wrinkles vanished when I shrunk the
covering with a mist of water.
Be careful because the glue stick is
water and alcohol soluble. After misting the
tissue for shrinking, dry it rapidly with a
hair dryer so the glue has no chance to
come loose. Dampen the tissue on the top
and bottom of the wing and stabilizer.
Switch the dryer from one side to the other
as you dry it. This will help prevent
warping the structure.
I was very pleased with the Easy Built
Models tissue. It isn’t Japanese-tissue
quality, but it is a great option for sport
models. I finished the model with two light
coats of Krylon Crystal Clear spray.
Rather than cut out a rudder tab as
shown on the plans, I installed a 1⁄2-inchlong
piece of thin trailing-edge stock on the
right side of the subfin for power and glide
turn to the right.
A 7-inch propeller is included in the kit.
I opted instead for an 8-inch Peck-Polymers
gray propeller and used a latch
freewheeling device. My model weighed 31
grams without the rubber motor. You did
use light wood, right?
I used two braided 30-inch loops of 1⁄8-
inch rubber, which made a good motor for a
moderate climb and long motor run. For
more “punch,” George Perryman preferred
a motor made from two 20-inch loops of 1⁄8-
inch rubber and one 20-inch loop of 1⁄16-
inch rubber. George passed away in
February; he will be missed.
Adventures in Trimming the Sig Mini-
Maxer: I expected this to be a lead-pipe
cinch. I went out to the back yard for some
initial test glides with 30 or so hand winds.
The model was given a level launch at
gliding speed, and doink! (A “doink” is
Okie for “bad dive.”) Wait a minute! Where
was the expected gentle descent to a spot on
the yard 40 feet away? So much for my
expectations.
I had checked the wing and stabilizer for
warps, the decalage was 3°, and the model
balanced with the rubber motor as shown
on the plans. It must have been a bad
launch. I launched it the second time, and
doink! What was going on here? The
decalage had been double-checked and was
correct. There were no bad warps. So I
thought the center of gravity (CG) must be
wrong.
I added clay to the tail until a decent
glide was obtained, then I marked the new
CG on the wing 23⁄4 inches behind the wing
leading edge. I removed the clay from the
tail, removed the wing hold-down dowels,
and strapped the wing to the fuselage with
134 MODEL AVIATION
RADIO SOUTH INC.
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Toll Free Order Line (Orders Only Please) 800-962-7802
Repair and Information . . . . . . . . . . . . . . . . . . 850-434-0909 or visit our website at http://www.radiosouthrc.com
If not available at your local hobby shop, order
direct. DEALER INQUIRIES INVITED.
Special Paper
Plastic
Special Paper
MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
•Fits most
transmitters with
a wire handle.
•The stand is made from
black acrylic.
•Clamps the transmitter
securely.
•Includes colorful,
adjustable neck strap
and all hardware.
transmitter not included.
TRANSMITTER
TRAY
only
$29.95
plus $4.95 s&h
Stop Holding Your
Transmitter!
08sig5.QXD 5.23.03 12:37 pm Page 134
rubber bands. Then I moved the wing
forward until the model balanced at the new
CG mark on the wing. I reinstalled the wing
hold-down dowels at the new wing
position.
After encountering the CG problem, I
wrote a note to George and he confirmed
that the CG should be 23⁄4 inches behind the
wing leading edge at the center of the wing.
I began power testing with 300 winds,
resulting in a right power pattern which was
slightly more open than I wanted. The glide
turn was good. I added a 1⁄64-inch shim to
the left side of the nose block, resulting in a
nice right climb under power and in the
glide, and voilà!
That pink tissue shows up well in the air
and on the ground. The dethermalizer
proved its worth on the first flight with full
winds. Thanks, George! You did good.
One of My Favorite Newsletters: When I
was at an FAC Nats years ago, Russ
Brown, the editor of Crosswinds,
approached me. He was offering
subscriptions to the publication, which is
the newsletter of the Cleveland Free Flight
Society. I subscribed on the spot and have
enjoyed Crosswinds ever since.
This newsletter features one Scale
design in each issue—usually in great detail
and with good documentation. Sometimes
there are multiple-size plans for the same
design in one issue. You get four issues
each year for $16, and they are well worth
the expense if you like rubber-powered
Scale.
Send dues to Russ Brown at 4909 N.
Sedgewick Rd., Lyndhurst OH 44124. Ask
him about the Cleveland Free Flight
Society’s incredible archives. You are sure
to find several back issues of interest
among the more than 100 on the list.
Steve Griebling’s beautiful 191⁄2-inchspan
Arado Ar.66 biplane was featured in
Crosswinds 102, which came out in June
last year. The model uses a propeller carved
from a 11⁄4 x 3⁄4 x 9-inch poplar blank.
Weight without motor is 34 grams, and
power is four braided strands of 3⁄16-inch
rubber weighing 13 grams.
The airplane has great lines for a rubberpowered
biplane, including a long nose.
The color scheme is unique; most of the
fuselage is brown, the top surfaces are
white, and there is a yellow band around the
fuselage.
This model is eligible to fly in FAC
between-wars military events. Steve flew to
a fifth-place finish with the Arado at the
FAC Nats in 2000 and 2002. He had great
performances in tough competition.
Russian Tank Buster: Master modeler
Clarence Mather is about to finish a 35-
inch-span Jumbo Scale Russian
Shturmovik. This is his second Shturmovik;
the first was published in American Aircraft
Modeler magazine in 1970.
Clarence has a long history of success in
Free Flight competition, from Indoor
microfilm models (he was on a US Indoor
team) to Mulvihill and P-30. He has built
Indoor and Outdoor Scale models for many
years.
For several years Clarence has been
using a technique with laminated balsa
strips spiral-wrapped over a foam form,
resulting in a strong, light fuselage. The
foam is removed as stringers are placed.
His success has inspired me to try the
technique on a P-38.
Texas Timers Line Continues Expansion:
Hank Nystrom released a three-function
timer this spring. The third function allows
a variable incidence tail and/or autorudder.
His popular Texas Max series is now
available with a built-in pinch-off for those
who don’t like rigging a remote pinch-off.
The Texas Micro is perfect for that .020 or
.049 where weight savings is important.
Check out Hank’s Web site at
www.texastimers.com or E-mail him at
[email protected]. If you don’t have a
computer, send a self-addressed, stamped
envelope to Texas Timers, 3317 Pine
Timbers Dr., Johnson City TN 37604.
The Black Bullet logo is an example of the
custom decal or vinyl work that Vinyl
Graphics by Greg can produce. Write to
212 Freedom Ln., Arlington TX 76002, or
check with Greg online at www.vinyl
graphicsbygreg.com. He is used to doing
custom work for modelers. MA
August 2003 135
MADISON COMPONENTS • 1-800-811-9135
1059 Valley Crest Drive, Birmingham, AL 35226
www.qualityrcproducts.com
•Fits most
transmitters with
wire handle.
•The stand is made
from stainless
steel so it will not
rust or break.
• It allows pilot to
view his controls
and information
screen clearly while
he starts his engine.
TRANSMITTER
STAND
only
$12.95
Take A Stand Against
Transmitter Abuse!
F A I
MODEL SUPPLY
www.faimodelsupply.com
POLYSPAN, AIRSPAN, LITESPAN,
MICROLITES, MYLAR, TOMY TIMERS
F A I TAN SPORT RUBBER
1⁄4", 3⁄16", 1⁄8", 3⁄32" 1⁄16", .042 THICK
1 lb. box $2350, 10 lb. box $16600 Post Paid (USA).
TAN SUPER SPORT RUBBER
1 lb. box $2700, 10 lb. box $19100 Post Paid (USA).
• Made in U.S.A. •
“Superdog” AFR $22.50, “Hangar Rat” ARTF $25.00,
Bulldog ARF $20.00, electric lighters $6.00. Front
ends, winders, stooges, Books, Czech P30
props, Slick Lube, CROCKETT hooks, “Butterfly”
RTF indoor $20.00, “Super Butterfly” $21.00, huge
bunch of great FF kits, and Zona Saws.
COUPE & WAKEFIELD
PARTS, KITS, RTF
F.A.I. Model Supply
P O Box 366
Sayre, PA 18840-0366
Phone/Fax: 570-882-9873
Basic
Catalog
$3.00
Hi Tech
Catalog
$1.00
www.WirelessVideoCameras.com
Airborne Video Systems
08sig5.QXD 5.23.03 12:37 pm Page 135
Edition: Model Aviation - 2003/08
Page Numbers: 132,133,134,135
132 MODEL AVIATION
LOOK ON THE BRIGHT SIDE: Some are lamenting the fact
that modelers in the US are not developing model-building skills,
but are relying on prebuilt models for everything from sport Radio
Control flying to competition Free Flight. On the bright side, we are
helping to develop a whole generation or two of skilled model
builders in China, Mexico, and Eastern Europe!
However, if the notes I received with plans requests are any
indication, there will be plenty of grandkids flying Pollywogs this
summer.
Are you a member of the Flying Aces Club (FAC)? Why not? If
you want to fly rubber-powered Scale models, you need to belong
to the club. It hosts the largest Rubber Scale contests in the country.
The bimonthly newsletter costs $15 per year. Each issue is
packed with articles, plans, and information about area contests.
Enclose an extra dollar and a self-addressed, stamped envelope
(SASE), and you will receive a listing of all FACs across the
country.
Join a club in your area and enjoy learning and flying with the
rest of us. Mail your dues to Lin Reichel, commander-in-chief,
FAC GHQ, 3301 Cindy Ln., Erie PA 16506.
Sig Cubs I Have Known: Among the Pollywog plans requests was
a note asking me to take a look at the Sig Cub and see what could
be done to improve its performance. I bought a Sig Cub kit (not to
be confused with the AMA Cub also kitted by Sig); at less than $7,
it is a real bargain. The wood is a bit heavy, but it’s okay for a
trainer. The instructions are excellent. All a beginner has to do is
check a box beside each step as it is completed.
The instructions advise attaching the tissue with clear dope,
which is a tried-and-true method. Instead, I used an Elmer’s blue
glue stick. It is quick, easy, cheap, and doesn’t stink up the house!
The tissue in the kit is porous, so it is important that it is sealed
after the wing and tail feathers are covered. The instructions advise
using clear dope to seal the tissue. Another option is to obtain a can
of Krylon Crystal Clear spray 3301. Apply a couple of light coats
to the wing and tail surfaces.
After the wing has dried, try the following experiment. Put
your lips close to a piece of unpainted scrap tissue and blow. The
air will go right through the tissue. Do the same thing to your
Gene Smith, 1401 N. Husband St., Stillwater OK 74075; E-mail: [email protected]
FREE FLIGHT SPORT
The Sig Mini-Maxer is pretty in pink. It is a great flier. Don’t forget
the dethermalizer, or you will be building another.
Who is that optimistic pilot in the Sig Cub? SpongeBob
SquarePants! The text has suggestions for improving this model.
Steve Griebling’s Arado Ar.66 has placed twice at FAC Nats. Has
attractive brown-and-white scheme with yellow fuselage band.
Texas Timer is ready to go. Author “gooped” 3-inch piece of
yellow yarn to brass winding tool in case it falls in grass.
08sig5.QXD 5.23.03 12:36 pm Page 132
August 2003 133
painted wing and the air will bounce back.
That demonstrates the need to seal the tissue if you want your
model to fly properly. The wing won’t generate much lift if the air
goes through it rather than over it. Better-quality tissue is not as
porous, but it will still benefit from being sealed with dope or clear
Krylon.
The motor/propeller combination can be modified to improve
the Cub’s performance and is a fun area for experimentation. I
elected to leave off the wire “motor can” in the middle of the
fuselage, and instead I braided each of the three motors I used.
The instructions suggest making the enclosed 1⁄8-inch rubber
strip into a four-loop, eight-strand motor. This is roughly
equivalent to putting a 350 V8 in a Volkswagen Beetle; there is a
great deal of power there, but the wheels are too small and will
waste a lot of energy “burning rubber.”
When winding a motor this size, you will want a good winder. I
like the Scalewinder that HiLine sells. Contact Dave or Marie Rees
at (919) 778-6653 or send a buck for a catalog to Box 11558,
Goldsboro NC 27532.
After trimming the model on fewer winds, I put 450 turns into
the four-loop motor. The model blasted into the air, and most of the
energy was used to hang on the propeller. The motor run was 12
seconds, and the model traveled roughly 60 feet downwind.
I unbraided the motor and braided it as a six-strand motor. I was
able to increase the winds to 650. The motor run was marginally
longer. However, the model ended up at approximately the same
altitude with an energy-wasting steep climb.
I took down the same motor and braided it again, this time with
Clarence Mather’s beautiful 35-inch-span Shturmovik is ready for
covering. Lines and areas are ideal for rubber power.
Ralph Snow advised author of source for Black Bullet’s neat decal
logo. Ralph has Rubber and Electric versions of the model.
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08sig5.QXD 5.23.03 12:36 pm Page 133
two loops. I was able to put 1,500 turns into
this motor. The motor run exceeded 30
seconds; the model was up well past a
minute, it caught some air, and it came
down 300 yards from the launch site. That
was good enough for me.
The two-loop motor is better suited for
the 7-inch propeller. The three-loop motor
is a good choice for kids. The model gets
good altitude with few winds, and the chase
is short. If you want to try to achieve
another level of performance, replace the 7-
inch kit propeller with an 8- or 91⁄2-inch
Peck-Polymers propeller.
Use a motor with two loops of 1⁄8-inch
rubber, and see what you get. You might
want to put your name and address on the
model first! Then try the Sig Mini-Maxer; it
has provisions for a dethermalizer.
Adventures in Building the Sig Mini-
Maxer and Using Easy Built Tissue:
Construction was straightforward once I
replaced all of the kit wood with lighter
stock. The plans were clear and instructions
were good. Just follow the dots. Good
white tissue was provided in the kit, but I
wanted to use something colorful.
Last summer at the FAC Nationals
(Nats) I purchased an assortment of tissue
from Easy Built Models. I was prepared to
be unimpressed because it looked like just
another domestic tissue. Many of the colors
in the assortment are drab browns, greens,
or shades of blue, all of which would work
well for military models.
However, there was an incredibly bright
sheet of pink, and I selected it for the Mini-
Maxer. A single sheet was large enough to
cover the model with plenty to spare. The
covering has a shiny side and a dull side,
and I placed the dull side down. I applied
the tissue dry using an Elmer’s blue glue
stick. Much to my surprise, all of the
wrinkles vanished when I shrunk the
covering with a mist of water.
Be careful because the glue stick is
water and alcohol soluble. After misting the
tissue for shrinking, dry it rapidly with a
hair dryer so the glue has no chance to
come loose. Dampen the tissue on the top
and bottom of the wing and stabilizer.
Switch the dryer from one side to the other
as you dry it. This will help prevent
warping the structure.
I was very pleased with the Easy Built
Models tissue. It isn’t Japanese-tissue
quality, but it is a great option for sport
models. I finished the model with two light
coats of Krylon Crystal Clear spray.
Rather than cut out a rudder tab as
shown on the plans, I installed a 1⁄2-inchlong
piece of thin trailing-edge stock on the
right side of the subfin for power and glide
turn to the right.
A 7-inch propeller is included in the kit.
I opted instead for an 8-inch Peck-Polymers
gray propeller and used a latch
freewheeling device. My model weighed 31
grams without the rubber motor. You did
use light wood, right?
I used two braided 30-inch loops of 1⁄8-
inch rubber, which made a good motor for a
moderate climb and long motor run. For
more “punch,” George Perryman preferred
a motor made from two 20-inch loops of 1⁄8-
inch rubber and one 20-inch loop of 1⁄16-
inch rubber. George passed away in
February; he will be missed.
Adventures in Trimming the Sig Mini-
Maxer: I expected this to be a lead-pipe
cinch. I went out to the back yard for some
initial test glides with 30 or so hand winds.
The model was given a level launch at
gliding speed, and doink! (A “doink” is
Okie for “bad dive.”) Wait a minute! Where
was the expected gentle descent to a spot on
the yard 40 feet away? So much for my
expectations.
I had checked the wing and stabilizer for
warps, the decalage was 3°, and the model
balanced with the rubber motor as shown
on the plans. It must have been a bad
launch. I launched it the second time, and
doink! What was going on here? The
decalage had been double-checked and was
correct. There were no bad warps. So I
thought the center of gravity (CG) must be
wrong.
I added clay to the tail until a decent
glide was obtained, then I marked the new
CG on the wing 23⁄4 inches behind the wing
leading edge. I removed the clay from the
tail, removed the wing hold-down dowels,
and strapped the wing to the fuselage with
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MADISON COMPONENTS • 1-800-811-9135
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•Fits most
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08sig5.QXD 5.23.03 12:37 pm Page 134
rubber bands. Then I moved the wing
forward until the model balanced at the new
CG mark on the wing. I reinstalled the wing
hold-down dowels at the new wing
position.
After encountering the CG problem, I
wrote a note to George and he confirmed
that the CG should be 23⁄4 inches behind the
wing leading edge at the center of the wing.
I began power testing with 300 winds,
resulting in a right power pattern which was
slightly more open than I wanted. The glide
turn was good. I added a 1⁄64-inch shim to
the left side of the nose block, resulting in a
nice right climb under power and in the
glide, and voilà!
That pink tissue shows up well in the air
and on the ground. The dethermalizer
proved its worth on the first flight with full
winds. Thanks, George! You did good.
One of My Favorite Newsletters: When I
was at an FAC Nats years ago, Russ
Brown, the editor of Crosswinds,
approached me. He was offering
subscriptions to the publication, which is
the newsletter of the Cleveland Free Flight
Society. I subscribed on the spot and have
enjoyed Crosswinds ever since.
This newsletter features one Scale
design in each issue—usually in great detail
and with good documentation. Sometimes
there are multiple-size plans for the same
design in one issue. You get four issues
each year for $16, and they are well worth
the expense if you like rubber-powered
Scale.
Send dues to Russ Brown at 4909 N.
Sedgewick Rd., Lyndhurst OH 44124. Ask
him about the Cleveland Free Flight
Society’s incredible archives. You are sure
to find several back issues of interest
among the more than 100 on the list.
Steve Griebling’s beautiful 191⁄2-inchspan
Arado Ar.66 biplane was featured in
Crosswinds 102, which came out in June
last year. The model uses a propeller carved
from a 11⁄4 x 3⁄4 x 9-inch poplar blank.
Weight without motor is 34 grams, and
power is four braided strands of 3⁄16-inch
rubber weighing 13 grams.
The airplane has great lines for a rubberpowered
biplane, including a long nose.
The color scheme is unique; most of the
fuselage is brown, the top surfaces are
white, and there is a yellow band around the
fuselage.
This model is eligible to fly in FAC
between-wars military events. Steve flew to
a fifth-place finish with the Arado at the
FAC Nats in 2000 and 2002. He had great
performances in tough competition.
Russian Tank Buster: Master modeler
Clarence Mather is about to finish a 35-
inch-span Jumbo Scale Russian
Shturmovik. This is his second Shturmovik;
the first was published in American Aircraft
Modeler magazine in 1970.
Clarence has a long history of success in
Free Flight competition, from Indoor
microfilm models (he was on a US Indoor
team) to Mulvihill and P-30. He has built
Indoor and Outdoor Scale models for many
years.
For several years Clarence has been
using a technique with laminated balsa
strips spiral-wrapped over a foam form,
resulting in a strong, light fuselage. The
foam is removed as stringers are placed.
His success has inspired me to try the
technique on a P-38.
Texas Timers Line Continues Expansion:
Hank Nystrom released a three-function
timer this spring. The third function allows
a variable incidence tail and/or autorudder.
His popular Texas Max series is now
available with a built-in pinch-off for those
who don’t like rigging a remote pinch-off.
The Texas Micro is perfect for that .020 or
.049 where weight savings is important.
Check out Hank’s Web site at
www.texastimers.com or E-mail him at
[email protected]. If you don’t have a
computer, send a self-addressed, stamped
envelope to Texas Timers, 3317 Pine
Timbers Dr., Johnson City TN 37604.
The Black Bullet logo is an example of the
custom decal or vinyl work that Vinyl
Graphics by Greg can produce. Write to
212 Freedom Ln., Arlington TX 76002, or
check with Greg online at www.vinyl
graphicsbygreg.com. He is used to doing
custom work for modelers. MA
August 2003 135
MADISON COMPONENTS • 1-800-811-9135
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08sig5.QXD 5.23.03 12:37 pm Page 135