Edition: Model Aviation - 2013/04
Page Numbers: 76,77

76 Model Aviation APRIL 2013 www.ModelAviation.com
Geobat
Glenn Baker (5606 Cancun Dr., North Richland Hills TX 76180;
email: geebee7676aaahawk.com) scratch-built this Geobat.
The Geobat’s construction is 6mm Depron foam. It weighs 1 pound,
5 ounces with a 36-inch diameter fuselage. Glenn uses an E-fl ite
Six-Series 2000 Kv motor, E-fl ite 30-amp ESC, and two Hitec HS-81
servos.
Glenn wrote: “My Geobat was designed simply by looking at
photos of the aircraft posted on the Internet. A day or two prior to the
model’s maiden fl ight, someone working on the real Geobat contacted
me to suggest two last-minute alterations to my build. It turned out
they were spot on. The aircraft fl ew perfectly on its maiden fl ight
with almost no trimming needed. A Geobat’s fl ights are smooth. The
model is responsive without being skittish. In the air, it always draws
attention.”
Super Ringmaster
Abram Van Dover (112 Tillerson Dr., Newport News VA 23602; email:
[email protected]) shares his Classic Stunt Sterling Super Ringmaster.
The model is powered by a Fox .35 turning a Top Flite 10 x 6
propeller. Abram wrote: “Although I can’t fl y U-Control any longer
(two replacement knees), I display this airplane at my high school
model building classes. I hope it inspires the students as much as I
enjoyed fl ying it over the years.”
FOCAL POINT
Fairchild 24
Gordon Dey (6805 Devonshire Cir., Pensacola FL 32506) wrote: “I
built this Fairchild 24 from MA plans. I made a few modifi cations while
building the wing, which is now a single structure vs. left and right
plug-ins with wood spars. It is equipped with split fl aps and has a
span of 71 inches. Also the main landing gear shocks were built using
parts from a gas RC dune buggy.
“The cowl and wheel pants are built-up fi berglass over foam
cores. The model is covered with yellow MonoKote and yellow and
black Rust-Oleum paint. The model weighs in at 11 pounds, 2 ounces.
Power is a Thunder Tiger .91FS. Control is by a Futaba six-channel.
“I have wanted to build a model of a Fairchild for some time and
could fi nd no kits available. I went through the whole MA plans listing
and fi nally found the plans for the model.”
Bathtub Replica
James Hudspeth ([email protected]) bought this 1924
Dormoy Bathtub Replica from a woman whose father passed away in
2004. James wrote: “The plane has been in the attic ever since. Her
father did a museum-quality build. The engine is an O.S. FT-120 Gemini
twin cylinder. There is also a hard-bound book with the name Mike
Kimbrel that was copyrighted in 1979.
“Drawings are serial number 405. This is an 8-foot wingspan
plane.”
www.ModelAviation.com APRIL 2013 Model Aviation 77
Ach du Lieber
Robert Haas (101 Rosemont, Belton TX 76513) designed this
30-year-old model he named Ach du Lieber.
The model spans 62 inches with a 47-inch length and a weight
of approximately 7.5 pounds. Robert currently fl ies with a K&B .40
engine, but he has had fi ve different engines in this model throughout
the years, including a Fox, an Enya, and one from Tower Hobbies.
Robert wrote: “It is a sport/trainer type with a fl at-bottom wing
and lifting tail. [The design] is based on an original design from 1966.”
J-3 Cub
Neil Kaufman (165 Nobscot Rd., Sudbury MA 01776; email:
[email protected]) shares one of his winter projects, Pat
Tritle’s J-3 Cub from MA plans, August 2010. Neil wrote: “I’ve built
many models over the years, but this is one of the most satisfying
projects that I ever enjoyed. Congratulations to Pat Tritle and Model
Aviation for a great design.
“I built it by the book except for adding 1.16 inches to the fuselage
frame plus a fi rewall to support an outrunner 370 motor, which gives
the Cub plenty of zip.”
Delta Vortex
Keith Lindsay (3873 Union Church Rd., Fort Valley GA 31030; email:
[email protected]) modifi ed a Delta Vortex model from a Bruce
Tharpe Engineering kit.
Keith wrote: “The model is normally powered by a single glow
engine. I added a 22-inch forward fuselage section and installed a
PST 600R turbine to the top of the airframe. Because of the increased
weight on the airframe and projected increased speed, a second spar
was added to the wing. In addition, Lite Ply was added to the turbine
mount area for extra strength. VTOL wingtips were added to increase
the cool factor.
“The wing was fully sheeted with 1/8-inch balsa sheet. Two
22-ounce fuel tanks were installed in the wing, one on each side of
the fuselage. A metal landing gear was used to absorb the increased
weight. A canard airfoil was added to the fuselage to supplement the
pitch control. Other than the mentioned changes, the airframe was
built per instructions.”
Perris Special
Stuart Richmond (2079 E. 37th Ave., Apache Junction AZ 85119)
built this Perris Special from plans and wood sent to him by the late
Sal Taibi.
Stuart’s model spans 50 inches and weighs 32 ounces including
rudder, elevator, and throttle servos. The engine is an AP .09 from
Hobby People. The 2-ounce fuel tank allows for fl ights of roughly 20
minutes.
The photo was taken by Dave Walker at the Arizona Model
Aviators fi eld in Mesa, Arizona.
Interested in sharing your handiwork?
See page 151 for submission guidelines.
Edition: Model Aviation - 2013/04
Page Numbers: 76,77

76 Model Aviation APRIL 2013 www.ModelAviation.com
Geobat
Glenn Baker (5606 Cancun Dr., North Richland Hills TX 76180;
email: geebee7676aaahawk.com) scratch-built this Geobat.
The Geobat’s construction is 6mm Depron foam. It weighs 1 pound,
5 ounces with a 36-inch diameter fuselage. Glenn uses an E-fl ite
Six-Series 2000 Kv motor, E-fl ite 30-amp ESC, and two Hitec HS-81
servos.
Glenn wrote: “My Geobat was designed simply by looking at
photos of the aircraft posted on the Internet. A day or two prior to the
model’s maiden fl ight, someone working on the real Geobat contacted
me to suggest two last-minute alterations to my build. It turned out
they were spot on. The aircraft fl ew perfectly on its maiden fl ight
with almost no trimming needed. A Geobat’s fl ights are smooth. The
model is responsive without being skittish. In the air, it always draws
attention.”
Super Ringmaster
Abram Van Dover (112 Tillerson Dr., Newport News VA 23602; email:
[email protected]) shares his Classic Stunt Sterling Super Ringmaster.
The model is powered by a Fox .35 turning a Top Flite 10 x 6
propeller. Abram wrote: “Although I can’t fl y U-Control any longer
(two replacement knees), I display this airplane at my high school
model building classes. I hope it inspires the students as much as I
enjoyed fl ying it over the years.”
FOCAL POINT
Fairchild 24
Gordon Dey (6805 Devonshire Cir., Pensacola FL 32506) wrote: “I
built this Fairchild 24 from MA plans. I made a few modifi cations while
building the wing, which is now a single structure vs. left and right
plug-ins with wood spars. It is equipped with split fl aps and has a
span of 71 inches. Also the main landing gear shocks were built using
parts from a gas RC dune buggy.
“The cowl and wheel pants are built-up fi berglass over foam
cores. The model is covered with yellow MonoKote and yellow and
black Rust-Oleum paint. The model weighs in at 11 pounds, 2 ounces.
Power is a Thunder Tiger .91FS. Control is by a Futaba six-channel.
“I have wanted to build a model of a Fairchild for some time and
could fi nd no kits available. I went through the whole MA plans listing
and fi nally found the plans for the model.”
Bathtub Replica
James Hudspeth ([email protected]) bought this 1924
Dormoy Bathtub Replica from a woman whose father passed away in
2004. James wrote: “The plane has been in the attic ever since. Her
father did a museum-quality build. The engine is an O.S. FT-120 Gemini
twin cylinder. There is also a hard-bound book with the name Mike
Kimbrel that was copyrighted in 1979.
“Drawings are serial number 405. This is an 8-foot wingspan
plane.”
www.ModelAviation.com APRIL 2013 Model Aviation 77
Ach du Lieber
Robert Haas (101 Rosemont, Belton TX 76513) designed this
30-year-old model he named Ach du Lieber.
The model spans 62 inches with a 47-inch length and a weight
of approximately 7.5 pounds. Robert currently fl ies with a K&B .40
engine, but he has had fi ve different engines in this model throughout
the years, including a Fox, an Enya, and one from Tower Hobbies.
Robert wrote: “It is a sport/trainer type with a fl at-bottom wing
and lifting tail. [The design] is based on an original design from 1966.”
J-3 Cub
Neil Kaufman (165 Nobscot Rd., Sudbury MA 01776; email:
[email protected]) shares one of his winter projects, Pat
Tritle’s J-3 Cub from MA plans, August 2010. Neil wrote: “I’ve built
many models over the years, but this is one of the most satisfying
projects that I ever enjoyed. Congratulations to Pat Tritle and Model
Aviation for a great design.
“I built it by the book except for adding 1.16 inches to the fuselage
frame plus a fi rewall to support an outrunner 370 motor, which gives
the Cub plenty of zip.”
Delta Vortex
Keith Lindsay (3873 Union Church Rd., Fort Valley GA 31030; email:
[email protected]) modifi ed a Delta Vortex model from a Bruce
Tharpe Engineering kit.
Keith wrote: “The model is normally powered by a single glow
engine. I added a 22-inch forward fuselage section and installed a
PST 600R turbine to the top of the airframe. Because of the increased
weight on the airframe and projected increased speed, a second spar
was added to the wing. In addition, Lite Ply was added to the turbine
mount area for extra strength. VTOL wingtips were added to increase
the cool factor.
“The wing was fully sheeted with 1/8-inch balsa sheet. Two
22-ounce fuel tanks were installed in the wing, one on each side of
the fuselage. A metal landing gear was used to absorb the increased
weight. A canard airfoil was added to the fuselage to supplement the
pitch control. Other than the mentioned changes, the airframe was
built per instructions.”
Perris Special
Stuart Richmond (2079 E. 37th Ave., Apache Junction AZ 85119)
built this Perris Special from plans and wood sent to him by the late
Sal Taibi.
Stuart’s model spans 50 inches and weighs 32 ounces including
rudder, elevator, and throttle servos. The engine is an AP .09 from
Hobby People. The 2-ounce fuel tank allows for fl ights of roughly 20
minutes.
The photo was taken by Dave Walker at the Arizona Model
Aviators fi eld in Mesa, Arizona.
Interested in sharing your handiwork?
See page 151 for submission guidelines.