FREE FLIGHT INDOOR LETTER TO THE EAST Coast Indoor Modelers regret begin letter sad news Long time ECIM member Manny Radoff left us Wednesday October 5 Mannys dedication Indoor modeling Lakehurst spanned decades ability keen competitor light builder won him top honors National Record team member status World Championships pioneer evolution Indoor model design being satisfied multirib wings standard Manny first utilize five-rib wing planform use models today Locally Manny good friend could always count seeing him flying sessions social gatherings Participation flying events side Mannys greatness part original inception group president East Coast Indoor Modelers organization addition served regional representative FAI competition committee personally will miss help encouragement mostly sincere friendship Gary Underwood USIC 1995 US Indoor Championships Go again five-day meet test flying first day dates May 3 1-June 4 1995 As writing 11/6194 final details being decided entry blanks prepared Send SASE Howard Henderson 444 Bryan Ave Kirkwood MO 63122 get entry blank International Easy B Contest Provided enough interest shown will international Easy B contest part Kibbie Dome meet early July Contcst entry fee will high $35 very special prizes Since proxy entry will allowed proxy fliers will needed Contact Larry Coslick 4202 Valleycrest Hills St Louis MO 63128 interested entry proxy flying Treatise Jug Props previous column noted Phil Alvirez developed published geometric design method jug props Phils method uses almost no mathematics design analysis book well-written shows develop props cylindrical forms has released added page extends method fullhelical-pitch design updating previously bought book Phil asks $10 postage paid 24-page manual address 1350 Arncliffe P1 Windsor Ontario Canada N85 4K3 Best Hangar Pilot time read Dave Linstrum will have completed last two volumes compilation plans articles John Martins long-lived newsletter Vol 4 5 $14 Vol 1-Vol 5 $34 prices postage-paid delivery Dave Linstrum 3927 Maravic P1 Sarasota FL 34231 Flying Opportunities sessions listed below latest information available Contact persons other areas included CDs events beginning April 1995 send schedules ASAP Always verify contest date phone before leaving home Basic Bostonian designed Pete Van Dore serve trainer one-design model clubs introducing event See Focus Competition 1994 International MiniStick Postal Contest results CaliforniaBurbank Blacksheep Exhibition Squadron VMF 214 has monthly sessions second Fridays flying Cat site Luther Burbank Middle School 7-10 pm Tony Naccarato 2121 N Hollywood Way Burbank CA 91507 Tel 818 842-5062 CaliforniaGarden Grove currently have access gymnasium located Crystal Cathedral Garden Grove California have use gym Tuesday evening 7 10 pm. welcome types Indoor models well modelers experience level gym approximately 25 feet lowest ceiling girder another 10 feet airspace above John Wenk 4621 Silverleaf Ave Orange CA 92669 Tel 714 633-8546 CaliforniaLos Angeles area Monthly sessions Naval & Marine Corps Armory next Dodger Stadium Paul Avery 6360 Germania Ct Agoura Hills CA 91301 Tel 818 707-0282 CaliforniaMann County 20 miles north San Francisco Year-round minicontests 8 am-2 pm fourth Sunday month site standard basketball court 28 feet clear Contact George Benson 204 Benson Circle Mill Valley CA 94941 Tel 415 388-1809 CaliforniaSan Diego Fun Fly Scale sessions 2nd Friday month monthly sessions 4th Friday Colina Del Sol Community Center Cat 5316 Orange Ave San Diego Howard Haupt 3860 Ecochee Ave San Diego CA 92117 Tel 619 2725656 CanadaOntario area Dan OGrady 50 Largo Crescent Nepean Ontario Canada K2G3C7 CanadaWinnipeg Manitoba Flying sessions twice month 23-foot gym Sundays session month 80-foot hangar hangar commercial airline maintenance hangar subject work schedules no sessions have cancelled yet hangar very tight minimal drift locale several Canadian Cat III records Contact Bame Taylor 2 Thackery Winnipeg Manitoba Canada R3K OHl Tel 204 889-4737 ConnecticutGlastonbury George Armstead 89 Harvest Lane Glastonbury CT 06037 Tel 203 633-7836 ConnecticutNorwich Flying sessions held throughout Fall Winter Teachers Memorial Junior High School located 122 Model Aviation Clems removable tailboom usable Easy B Pennyplanes Balsa peg tissue tube lock together Norwich Connecticut Beginners welcome assistance provided veteran aeromodelers Sessions 1994-95 scheduled Saturdays 9 am 1 pm February 18 March 18 April 15 1995 Contact John Koptonak 3 Wiemes Ct Waterford CT 06385 Tel 203 442-9003 ConnecticutWilton Roger Kleinert 17 Gardiner St Darien CT 06820 Tel 203 655-1585 FloridaContact Dr John Martin 2180 Tigertail Ave Miami FL 33133 Tel 305 858-6363 GeorgiaAtlanta area Contact John Barker Tel 404 436-9912 IdahoKibbie Dome Andy Tagliafico 650B Taybin Road NW Salem OR 97304 Tel 503 371-0492 IllinoisChicago area Year-round weekly sessions 25-foot gym College DuPage Glen Ellyn Illinois Currently held 6-11 pm Monday evenings Bob Warmann 245 N Oaldawn Elmhurst IL 60126 Tel 708 834-9075 IowaCedar Rapids Non-sanctioned Indoor flying Nov 1994 through Feb 1995 Paul Mcllrath 152448 St NE Cedar Rapids IA 52402 Tel 319 393-4677 KansasTopeka Jack Koehiar 3425 SW Arrowhead Rd Topeka KS 666 14-3485 Tel 913 272-8439 KansasWichita Contact Stan Chilton 725 E Lincoln Wichita KS 67211-3302 Tel 316 686-9634 KentuckyLouisville Flying sessions Tuesday Sawyer Park site 11 am-i pm Also Saturday month subject military schedules Kentucky Air National Guard suite 10 am-2 pm Contact Mason Plank 3207 Oriole Dr Louisville KY 40213 Tel 502 634-8191 MarylandGoddard NAS Contact Tom Vallee 444 Henryton So Laurel MD 20707 Tel 301 498-0790 MassachusettsCambridge MIT Ray Harlan 15 Happy Hollow Rd Wayland MA 01778 Tel 617 358-4013 MinnesotaBurnsville John OLeary 11425 Kell Circle Bloomington MN 55437 Tel 612 888-0638 Dell Marchant 17110 24th Ave N Plymouth MN 55447 Tel 612 473-5971 NebraskaBeatrice John Pakiz 4523 Poppleton Ave Omaha NE 68106 Tel 402 551-2964 New JerseyLakehurst 1994 flying sessions/contests/record trials Hangar #1 scheduled almost weekend between July end October information 1995 season send Gary Underwood SASE 24 Kennebec Ct Bordentown NJ 08505 call 609 3249004 New JerseyNorthern area Don Ross 38 Churchill Rd Cresskill NJ 07626 Tel 201 568-5272 New JerseyUnion area Fergus Collins 48 East Hazlewood Ave Rahway NJ 07067 New YorkBrooklyn Contact Don Ross 38 Churchill Rd Cresskill NJ 07626 Tel 201 568-5272 New YorkLevittown Cantiaque Richard Fiore 531 Secatogue Ave Farmingdale LI NY 11735 Tel 516 2494358 New YorkLocust Valley Fred Dippel 2 David Court Glen Cove LI NY 11542 Tel 516 671-2858 New YorkNYC Dan Marek 210 West 101st St #1OF NYC 10025 Tel 212 2221546 New YorkQueens Bob Bender 159 Raff Ave MineolaNY 11501 Tel 516 2485118 North CarolinaCharlotte Flying sessions 25-foot gym Friday night yearround Contact Cliff Culpepper 1401 Ferncliffe Rd Charlotte NC 28211 Tel 704 366-7350 details OhioCleveland area Weekly sessions year-round Cat sites site Willoughby Andrews School has 20-foot flat ceiling 60 x 80-foot floor area other site Meridian Euclid Hospital Euclid has 195-foot ceiling 45 x 70-foot floor area Contact Vein Hacker 25599 Breckenridge Dr Euclid OH 441171807 Tel 216 486-4990 OklahomaOklahoma City 1995 flying sessions/contests Armory Feb 19 Mar 19 1995 Contact Edsel Ford 10613 W Country Drive Oklahoma City OK 73170 Tel 405 691-5411 OklahomaTulsa Roy OMara 9120 E 7th St Tulsa OK 74112 Tel 918 8356880 OregonAlbany Sundays Jan 29 Feb 26 1995 9 am 3 pm gym will open 845 am Schedule both meets 9 am 1145 am IHLGl 1 am Twin Pusher 1130 am Noon 3 pmDuration Events Events EZB Pennyplane Limited Pennypiane Intermediate Stick Ornithopter MiniStick Scale P-24 Bostonian Indoor HL Glider Catapult Glider Helicopter Old Timer Challenge Moorhead Event Twin Pusher Mass Launch Site South Albany High School Gymnasium 3705 5 Columbus St Albany OR Ceiling 42 feet entrants must wear gym shoes Contact Bob Stalick 5066 NW Picadilly Cir Albany OR 97321 John Lenderman 17086 Hall Road Clatskanie OR 97016 Tel 503 728-3884 PennsylvaniaEastern Walt Eggert Jr 26 Moredon Rd Huntington Valley PA 19006 Tel 215 947-4387 PennsylvaniaPhiladelphia Joe Krush 409 Warner Rd Wayne PA 19087 Tel 215 688-3927 VirginiaHampton area Langley Brainbusters winter Indoor contest schedule includes dates Jan 29 Feb 26 Mar 19 Apr 23 1994 1 pm 6pm contests will held SBH Gym will feature following events EZ-13 Limited Pennyplane Bostonian No Cal A-6 8-Inch hand-launch glider MiniStick events count scoring Contact Abram Van Dover 112 Tillerson Dr Newport News VA 23602 Tel 804 877-2830 Washington stateSeattle area Boeing Hawks have scheduled three contests 1995 Naval Reserve Center Lake Union 9 am-4 pm January 14 February 18 March 18 1995 Contact Gene Stubbs NVS 67-ML 237@19 5505 Ann Arbor NE Seattle WA 98105 Tel 206 523-6148 WisconsinRacine Tony Italiano 1655 Revere Dr Brookfield WI 53005 Tel 414 782-6256 Partial Motors topic has come up before column referring quarter- half-motor testing refine model trim actually predict time maximum altitude expect full motors may have seen earlier discussions partial motor trimming uses weighted spacer replace part motor Indoor model half-motor setup length spacer exactly half distance between front rear hooks model must weigh exactly half much full motor used ioop rubber intend use identical weight Quarter-motor testing common spacer three-quarters long hook measurement weighing three times much short loop Finally ratio full-motor length partial motor length must exactly same ratio weight Stan Chilton strips short strips careful make test motor rubber immediately adjacent full motor good prediction Stan Chilton claims almost exact correlation between quarter-motor times full-motor times estimates test altitude cant sure about altitude test altitude estimates correct altitude correlation good also quarter-motor tests Bob Randolph claims model goes least high predicted achieves least four times quarter-motor time exact enough Basically exact can manage Stan Chilton uses electronic balance sensitivity Jim Clem uses precisely constructed ratio March 1995 123 AUTO-VAC SYSTEM Introducing f new fully automatic vacuum bagging sysfem fhat cornpletely self-monitoring has fully adlustoble vacuum switch large capacity reservoir prevenfs frequent cycling vacuum pump Aufo-Yac kif comes completely assembled mounted wood base ready use Included kit E-Z Yac II electric pump rated 24 Hg vacuum switch adlust able 5 22 Hg vacuum gauge large capacity reservoir check valve neoprene tubing E-Z Voc connector two Quick-Lock seals 9 18 wide bagging tube 9 15 wide breather cloth set vacuum bagging instructions - ODoolittleDrSonLeandraCA94577 L1510352-2022 510352-2021 battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FlytnQ PrecIsIon AerobatIcs Iti * Pilots Manual *A 05 te0inIqUea discussed author has placed top 3 Nets 4 ttn7s f CROSS WIND CORRECTION CHART INCLUDEDlusts control inputs various flight condtionsl __ Highly illustrated CAD Drawings der send $845 $t 50 S&H ____________________ toie Pu/jIIcat/ois 3502 West 96th Circle -- Westminster CO 80030 Attn Dept M Colorado residents add 78% * competition sport flyers pilots want fly safer crosswinds big bird pilots like fly preosely crosswinds sport flyers want imorove flying crosswinds pilots want learn pros S TEALTH wind corrections balance see photo July 94 column Precise goodbut must have equally good altitude measurement predict peak altitude Environmental Concerns As rubber-powered event ambient temperature major variable Rubber has positive temperature coefficient gains energy temperature rises approximate theoretical gain 4% per degree centigrade4% power gain 100 temperature increase So suspect large temperature differential follow quarter-motor test half-motor test An alternate choice somehow measure temperature altitude compute correction turns/launch torque figures can figure profile temperature site correction calculations require data dont have now Suppose want solve torque burst trim problems ratio rubber weight spacer weight need highly accurate need very accurate total weight rubber spacer Also absolutely must keep models center gravity same fly real case short motor gives good test flights dont take long time hopefully dont get too high Other Uses Partial Motors now US Indoor Teams resounding success 1994 World Championships salt should well known past years major problem has make use approximately 210-foot ceiling Low temperatures salt reduce motor output energy ways hard prepare three members US team practiced Santa Ana until combination prop rubber size such could reach top hangar quarter motors expectation colder air would reduce normally predictable 600-foot climb safe value Apparently worked West Coast fliers plan December 4 1994 FID regional trials have one-day access site have decided allow half-motors flights can made day can think no better testimony partial-motor flying Model Aviation Associates Gives Total Flight Line FREEDOM 7 STATE-OF-THE-ART PILOTS READY TO FLY
Edition: Model Aviation - 1995/03
Page Numbers: 122, 123, 124
FREE FLIGHT INDOOR LETTER TO THE EAST Coast Indoor Modelers regret begin letter sad news Long time ECIM member Manny Radoff left us Wednesday October 5 Mannys dedication Indoor modeling Lakehurst spanned decades ability keen competitor light builder won him top honors National Record team member status World Championships pioneer evolution Indoor model design being satisfied multirib wings standard Manny first utilize five-rib wing planform use models today Locally Manny good friend could always count seeing him flying sessions social gatherings Participation flying events side Mannys greatness part original inception group president East Coast Indoor Modelers organization addition served regional representative FAI competition committee personally will miss help encouragement mostly sincere friendship Gary Underwood USIC 1995 US Indoor Championships Go again five-day meet test flying first day dates May 3 1-June 4 1995 As writing 11/6194 final details being decided entry blanks prepared Send SASE Howard Henderson 444 Bryan Ave Kirkwood MO 63122 get entry blank International Easy B Contest Provided enough interest shown will international Easy B contest part Kibbie Dome meet early July Contcst entry fee will high $35 very special prizes Since proxy entry will allowed proxy fliers will needed Contact Larry Coslick 4202 Valleycrest Hills St Louis MO 63128 interested entry proxy flying Treatise Jug Props previous column noted Phil Alvirez developed published geometric design method jug props Phils method uses almost no mathematics design analysis book well-written shows develop props cylindrical forms has released added page extends method fullhelical-pitch design updating previously bought book Phil asks $10 postage paid 24-page manual address 1350 Arncliffe P1 Windsor Ontario Canada N85 4K3 Best Hangar Pilot time read Dave Linstrum will have completed last two volumes compilation plans articles John Martins long-lived newsletter Vol 4 5 $14 Vol 1-Vol 5 $34 prices postage-paid delivery Dave Linstrum 3927 Maravic P1 Sarasota FL 34231 Flying Opportunities sessions listed below latest information available Contact persons other areas included CDs events beginning April 1995 send schedules ASAP Always verify contest date phone before leaving home Basic Bostonian designed Pete Van Dore serve trainer one-design model clubs introducing event See Focus Competition 1994 International MiniStick Postal Contest results CaliforniaBurbank Blacksheep Exhibition Squadron VMF 214 has monthly sessions second Fridays flying Cat site Luther Burbank Middle School 7-10 pm Tony Naccarato 2121 N Hollywood Way Burbank CA 91507 Tel 818 842-5062 CaliforniaGarden Grove currently have access gymnasium located Crystal Cathedral Garden Grove California have use gym Tuesday evening 7 10 pm. welcome types Indoor models well modelers experience level gym approximately 25 feet lowest ceiling girder another 10 feet airspace above John Wenk 4621 Silverleaf Ave Orange CA 92669 Tel 714 633-8546 CaliforniaLos Angeles area Monthly sessions Naval & Marine Corps Armory next Dodger Stadium Paul Avery 6360 Germania Ct Agoura Hills CA 91301 Tel 818 707-0282 CaliforniaMann County 20 miles north San Francisco Year-round minicontests 8 am-2 pm fourth Sunday month site standard basketball court 28 feet clear Contact George Benson 204 Benson Circle Mill Valley CA 94941 Tel 415 388-1809 CaliforniaSan Diego Fun Fly Scale sessions 2nd Friday month monthly sessions 4th Friday Colina Del Sol Community Center Cat 5316 Orange Ave San Diego Howard Haupt 3860 Ecochee Ave San Diego CA 92117 Tel 619 2725656 CanadaOntario area Dan OGrady 50 Largo Crescent Nepean Ontario Canada K2G3C7 CanadaWinnipeg Manitoba Flying sessions twice month 23-foot gym Sundays session month 80-foot hangar hangar commercial airline maintenance hangar subject work schedules no sessions have cancelled yet hangar very tight minimal drift locale several Canadian Cat III records Contact Bame Taylor 2 Thackery Winnipeg Manitoba Canada R3K OHl Tel 204 889-4737 ConnecticutGlastonbury George Armstead 89 Harvest Lane Glastonbury CT 06037 Tel 203 633-7836 ConnecticutNorwich Flying sessions held throughout Fall Winter Teachers Memorial Junior High School located 122 Model Aviation Clems removable tailboom usable Easy B Pennyplanes Balsa peg tissue tube lock together Norwich Connecticut Beginners welcome assistance provided veteran aeromodelers Sessions 1994-95 scheduled Saturdays 9 am 1 pm February 18 March 18 April 15 1995 Contact John Koptonak 3 Wiemes Ct Waterford CT 06385 Tel 203 442-9003 ConnecticutWilton Roger Kleinert 17 Gardiner St Darien CT 06820 Tel 203 655-1585 FloridaContact Dr John Martin 2180 Tigertail Ave Miami FL 33133 Tel 305 858-6363 GeorgiaAtlanta area Contact John Barker Tel 404 436-9912 IdahoKibbie Dome Andy Tagliafico 650B Taybin Road NW Salem OR 97304 Tel 503 371-0492 IllinoisChicago area Year-round weekly sessions 25-foot gym College DuPage Glen Ellyn Illinois Currently held 6-11 pm Monday evenings Bob Warmann 245 N Oaldawn Elmhurst IL 60126 Tel 708 834-9075 IowaCedar Rapids Non-sanctioned Indoor flying Nov 1994 through Feb 1995 Paul Mcllrath 152448 St NE Cedar Rapids IA 52402 Tel 319 393-4677 KansasTopeka Jack Koehiar 3425 SW Arrowhead Rd Topeka KS 666 14-3485 Tel 913 272-8439 KansasWichita Contact Stan Chilton 725 E Lincoln Wichita KS 67211-3302 Tel 316 686-9634 KentuckyLouisville Flying sessions Tuesday Sawyer Park site 11 am-i pm Also Saturday month subject military schedules Kentucky Air National Guard suite 10 am-2 pm Contact Mason Plank 3207 Oriole Dr Louisville KY 40213 Tel 502 634-8191 MarylandGoddard NAS Contact Tom Vallee 444 Henryton So Laurel MD 20707 Tel 301 498-0790 MassachusettsCambridge MIT Ray Harlan 15 Happy Hollow Rd Wayland MA 01778 Tel 617 358-4013 MinnesotaBurnsville John OLeary 11425 Kell Circle Bloomington MN 55437 Tel 612 888-0638 Dell Marchant 17110 24th Ave N Plymouth MN 55447 Tel 612 473-5971 NebraskaBeatrice John Pakiz 4523 Poppleton Ave Omaha NE 68106 Tel 402 551-2964 New JerseyLakehurst 1994 flying sessions/contests/record trials Hangar #1 scheduled almost weekend between July end October information 1995 season send Gary Underwood SASE 24 Kennebec Ct Bordentown NJ 08505 call 609 3249004 New JerseyNorthern area Don Ross 38 Churchill Rd Cresskill NJ 07626 Tel 201 568-5272 New JerseyUnion area Fergus Collins 48 East Hazlewood Ave Rahway NJ 07067 New YorkBrooklyn Contact Don Ross 38 Churchill Rd Cresskill NJ 07626 Tel 201 568-5272 New YorkLevittown Cantiaque Richard Fiore 531 Secatogue Ave Farmingdale LI NY 11735 Tel 516 2494358 New YorkLocust Valley Fred Dippel 2 David Court Glen Cove LI NY 11542 Tel 516 671-2858 New YorkNYC Dan Marek 210 West 101st St #1OF NYC 10025 Tel 212 2221546 New YorkQueens Bob Bender 159 Raff Ave MineolaNY 11501 Tel 516 2485118 North CarolinaCharlotte Flying sessions 25-foot gym Friday night yearround Contact Cliff Culpepper 1401 Ferncliffe Rd Charlotte NC 28211 Tel 704 366-7350 details OhioCleveland area Weekly sessions year-round Cat sites site Willoughby Andrews School has 20-foot flat ceiling 60 x 80-foot floor area other site Meridian Euclid Hospital Euclid has 195-foot ceiling 45 x 70-foot floor area Contact Vein Hacker 25599 Breckenridge Dr Euclid OH 441171807 Tel 216 486-4990 OklahomaOklahoma City 1995 flying sessions/contests Armory Feb 19 Mar 19 1995 Contact Edsel Ford 10613 W Country Drive Oklahoma City OK 73170 Tel 405 691-5411 OklahomaTulsa Roy OMara 9120 E 7th St Tulsa OK 74112 Tel 918 8356880 OregonAlbany Sundays Jan 29 Feb 26 1995 9 am 3 pm gym will open 845 am Schedule both meets 9 am 1145 am IHLGl 1 am Twin Pusher 1130 am Noon 3 pmDuration Events Events EZB Pennyplane Limited Pennypiane Intermediate Stick Ornithopter MiniStick Scale P-24 Bostonian Indoor HL Glider Catapult Glider Helicopter Old Timer Challenge Moorhead Event Twin Pusher Mass Launch Site South Albany High School Gymnasium 3705 5 Columbus St Albany OR Ceiling 42 feet entrants must wear gym shoes Contact Bob Stalick 5066 NW Picadilly Cir Albany OR 97321 John Lenderman 17086 Hall Road Clatskanie OR 97016 Tel 503 728-3884 PennsylvaniaEastern Walt Eggert Jr 26 Moredon Rd Huntington Valley PA 19006 Tel 215 947-4387 PennsylvaniaPhiladelphia Joe Krush 409 Warner Rd Wayne PA 19087 Tel 215 688-3927 VirginiaHampton area Langley Brainbusters winter Indoor contest schedule includes dates Jan 29 Feb 26 Mar 19 Apr 23 1994 1 pm 6pm contests will held SBH Gym will feature following events EZ-13 Limited Pennyplane Bostonian No Cal A-6 8-Inch hand-launch glider MiniStick events count scoring Contact Abram Van Dover 112 Tillerson Dr Newport News VA 23602 Tel 804 877-2830 Washington stateSeattle area Boeing Hawks have scheduled three contests 1995 Naval Reserve Center Lake Union 9 am-4 pm January 14 February 18 March 18 1995 Contact Gene Stubbs NVS 67-ML 237@19 5505 Ann Arbor NE Seattle WA 98105 Tel 206 523-6148 WisconsinRacine Tony Italiano 1655 Revere Dr Brookfield WI 53005 Tel 414 782-6256 Partial Motors topic has come up before column referring quarter- half-motor testing refine model trim actually predict time maximum altitude expect full motors may have seen earlier discussions partial motor trimming uses weighted spacer replace part motor Indoor model half-motor setup length spacer exactly half distance between front rear hooks model must weigh exactly half much full motor used ioop rubber intend use identical weight Quarter-motor testing common spacer three-quarters long hook measurement weighing three times much short loop Finally ratio full-motor length partial motor length must exactly same ratio weight Stan Chilton strips short strips careful make test motor rubber immediately adjacent full motor good prediction Stan Chilton claims almost exact correlation between quarter-motor times full-motor times estimates test altitude cant sure about altitude test altitude estimates correct altitude correlation good also quarter-motor tests Bob Randolph claims model goes least high predicted achieves least four times quarter-motor time exact enough Basically exact can manage Stan Chilton uses electronic balance sensitivity Jim Clem uses precisely constructed ratio March 1995 123 AUTO-VAC SYSTEM Introducing f new fully automatic vacuum bagging sysfem fhat cornpletely self-monitoring has fully adlustoble vacuum switch large capacity reservoir prevenfs frequent cycling vacuum pump Aufo-Yac kif comes completely assembled mounted wood base ready use Included kit E-Z Yac II electric pump rated 24 Hg vacuum switch adlust able 5 22 Hg vacuum gauge large capacity reservoir check valve neoprene tubing E-Z Voc connector two Quick-Lock seals 9 18 wide bagging tube 9 15 wide breather cloth set vacuum bagging instructions - ODoolittleDrSonLeandraCA94577 L1510352-2022 510352-2021 battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FlytnQ PrecIsIon AerobatIcs Iti * Pilots Manual *A 05 te0inIqUea discussed author has placed top 3 Nets 4 ttn7s f CROSS WIND CORRECTION CHART INCLUDEDlusts control inputs various flight condtionsl __ Highly illustrated CAD Drawings der send $845 $t 50 S&H ____________________ toie Pu/jIIcat/ois 3502 West 96th Circle -- Westminster CO 80030 Attn Dept M Colorado residents add 78% * competition sport flyers pilots want fly safer crosswinds big bird pilots like fly preosely crosswinds sport flyers want imorove flying crosswinds pilots want learn pros S TEALTH wind corrections balance see photo July 94 column Precise goodbut must have equally good altitude measurement predict peak altitude Environmental Concerns As rubber-powered event ambient temperature major variable Rubber has positive temperature coefficient gains energy temperature rises approximate theoretical gain 4% per degree centigrade4% power gain 100 temperature increase So suspect large temperature differential follow quarter-motor test half-motor test An alternate choice somehow measure temperature altitude compute correction turns/launch torque figures can figure profile temperature site correction calculations require data dont have now Suppose want solve torque burst trim problems ratio rubber weight spacer weight need highly accurate need very accurate total weight rubber spacer Also absolutely must keep models center gravity same fly real case short motor gives good test flights dont take long time hopefully dont get too high Other Uses Partial Motors now US Indoor Teams resounding success 1994 World Championships salt should well known past years major problem has make use approximately 210-foot ceiling Low temperatures salt reduce motor output energy ways hard prepare three members US team practiced Santa Ana until combination prop rubber size such could reach top hangar quarter motors expectation colder air would reduce normally predictable 600-foot climb safe value Apparently worked West Coast fliers plan December 4 1994 FID regional trials have one-day access site have decided allow half-motors flights can made day can think no better testimony partial-motor flying Model Aviation Associates Gives Total Flight Line FREEDOM 7 STATE-OF-THE-ART PILOTS READY TO FLY
Edition: Model Aviation - 1995/03
Page Numbers: 122, 123, 124
FREE FLIGHT INDOOR LETTER TO THE EAST Coast Indoor Modelers regret begin letter sad news Long time ECIM member Manny Radoff left us Wednesday October 5 Mannys dedication Indoor modeling Lakehurst spanned decades ability keen competitor light builder won him top honors National Record team member status World Championships pioneer evolution Indoor model design being satisfied multirib wings standard Manny first utilize five-rib wing planform use models today Locally Manny good friend could always count seeing him flying sessions social gatherings Participation flying events side Mannys greatness part original inception group president East Coast Indoor Modelers organization addition served regional representative FAI competition committee personally will miss help encouragement mostly sincere friendship Gary Underwood USIC 1995 US Indoor Championships Go again five-day meet test flying first day dates May 3 1-June 4 1995 As writing 11/6194 final details being decided entry blanks prepared Send SASE Howard Henderson 444 Bryan Ave Kirkwood MO 63122 get entry blank International Easy B Contest Provided enough interest shown will international Easy B contest part Kibbie Dome meet early July Contcst entry fee will high $35 very special prizes Since proxy entry will allowed proxy fliers will needed Contact Larry Coslick 4202 Valleycrest Hills St Louis MO 63128 interested entry proxy flying Treatise Jug Props previous column noted Phil Alvirez developed published geometric design method jug props Phils method uses almost no mathematics design analysis book well-written shows develop props cylindrical forms has released added page extends method fullhelical-pitch design updating previously bought book Phil asks $10 postage paid 24-page manual address 1350 Arncliffe P1 Windsor Ontario Canada N85 4K3 Best Hangar Pilot time read Dave Linstrum will have completed last two volumes compilation plans articles John Martins long-lived newsletter Vol 4 5 $14 Vol 1-Vol 5 $34 prices postage-paid delivery Dave Linstrum 3927 Maravic P1 Sarasota FL 34231 Flying Opportunities sessions listed below latest information available Contact persons other areas included CDs events beginning April 1995 send schedules ASAP Always verify contest date phone before leaving home Basic Bostonian designed Pete Van Dore serve trainer one-design model clubs introducing event See Focus Competition 1994 International MiniStick Postal Contest results CaliforniaBurbank Blacksheep Exhibition Squadron VMF 214 has monthly sessions second Fridays flying Cat site Luther Burbank Middle School 7-10 pm Tony Naccarato 2121 N Hollywood Way Burbank CA 91507 Tel 818 842-5062 CaliforniaGarden Grove currently have access gymnasium located Crystal Cathedral Garden Grove California have use gym Tuesday evening 7 10 pm. welcome types Indoor models well modelers experience level gym approximately 25 feet lowest ceiling girder another 10 feet airspace above John Wenk 4621 Silverleaf Ave Orange CA 92669 Tel 714 633-8546 CaliforniaLos Angeles area Monthly sessions Naval & Marine Corps Armory next Dodger Stadium Paul Avery 6360 Germania Ct Agoura Hills CA 91301 Tel 818 707-0282 CaliforniaMann County 20 miles north San Francisco Year-round minicontests 8 am-2 pm fourth Sunday month site standard basketball court 28 feet clear Contact George Benson 204 Benson Circle Mill Valley CA 94941 Tel 415 388-1809 CaliforniaSan Diego Fun Fly Scale sessions 2nd Friday month monthly sessions 4th Friday Colina Del Sol Community Center Cat 5316 Orange Ave San Diego Howard Haupt 3860 Ecochee Ave San Diego CA 92117 Tel 619 2725656 CanadaOntario area Dan OGrady 50 Largo Crescent Nepean Ontario Canada K2G3C7 CanadaWinnipeg Manitoba Flying sessions twice month 23-foot gym Sundays session month 80-foot hangar hangar commercial airline maintenance hangar subject work schedules no sessions have cancelled yet hangar very tight minimal drift locale several Canadian Cat III records Contact Bame Taylor 2 Thackery Winnipeg Manitoba Canada R3K OHl Tel 204 889-4737 ConnecticutGlastonbury George Armstead 89 Harvest Lane Glastonbury CT 06037 Tel 203 633-7836 ConnecticutNorwich Flying sessions held throughout Fall Winter Teachers Memorial Junior High School located 122 Model Aviation Clems removable tailboom usable Easy B Pennyplanes Balsa peg tissue tube lock together Norwich Connecticut Beginners welcome assistance provided veteran aeromodelers Sessions 1994-95 scheduled Saturdays 9 am 1 pm February 18 March 18 April 15 1995 Contact John Koptonak 3 Wiemes Ct Waterford CT 06385 Tel 203 442-9003 ConnecticutWilton Roger Kleinert 17 Gardiner St Darien CT 06820 Tel 203 655-1585 FloridaContact Dr John Martin 2180 Tigertail Ave Miami FL 33133 Tel 305 858-6363 GeorgiaAtlanta area Contact John Barker Tel 404 436-9912 IdahoKibbie Dome Andy Tagliafico 650B Taybin Road NW Salem OR 97304 Tel 503 371-0492 IllinoisChicago area Year-round weekly sessions 25-foot gym College DuPage Glen Ellyn Illinois Currently held 6-11 pm Monday evenings Bob Warmann 245 N Oaldawn Elmhurst IL 60126 Tel 708 834-9075 IowaCedar Rapids Non-sanctioned Indoor flying Nov 1994 through Feb 1995 Paul Mcllrath 152448 St NE Cedar Rapids IA 52402 Tel 319 393-4677 KansasTopeka Jack Koehiar 3425 SW Arrowhead Rd Topeka KS 666 14-3485 Tel 913 272-8439 KansasWichita Contact Stan Chilton 725 E Lincoln Wichita KS 67211-3302 Tel 316 686-9634 KentuckyLouisville Flying sessions Tuesday Sawyer Park site 11 am-i pm Also Saturday month subject military schedules Kentucky Air National Guard suite 10 am-2 pm Contact Mason Plank 3207 Oriole Dr Louisville KY 40213 Tel 502 634-8191 MarylandGoddard NAS Contact Tom Vallee 444 Henryton So Laurel MD 20707 Tel 301 498-0790 MassachusettsCambridge MIT Ray Harlan 15 Happy Hollow Rd Wayland MA 01778 Tel 617 358-4013 MinnesotaBurnsville John OLeary 11425 Kell Circle Bloomington MN 55437 Tel 612 888-0638 Dell Marchant 17110 24th Ave N Plymouth MN 55447 Tel 612 473-5971 NebraskaBeatrice John Pakiz 4523 Poppleton Ave Omaha NE 68106 Tel 402 551-2964 New JerseyLakehurst 1994 flying sessions/contests/record trials Hangar #1 scheduled almost weekend between July end October information 1995 season send Gary Underwood SASE 24 Kennebec Ct Bordentown NJ 08505 call 609 3249004 New JerseyNorthern area Don Ross 38 Churchill Rd Cresskill NJ 07626 Tel 201 568-5272 New JerseyUnion area Fergus Collins 48 East Hazlewood Ave Rahway NJ 07067 New YorkBrooklyn Contact Don Ross 38 Churchill Rd Cresskill NJ 07626 Tel 201 568-5272 New YorkLevittown Cantiaque Richard Fiore 531 Secatogue Ave Farmingdale LI NY 11735 Tel 516 2494358 New YorkLocust Valley Fred Dippel 2 David Court Glen Cove LI NY 11542 Tel 516 671-2858 New YorkNYC Dan Marek 210 West 101st St #1OF NYC 10025 Tel 212 2221546 New YorkQueens Bob Bender 159 Raff Ave MineolaNY 11501 Tel 516 2485118 North CarolinaCharlotte Flying sessions 25-foot gym Friday night yearround Contact Cliff Culpepper 1401 Ferncliffe Rd Charlotte NC 28211 Tel 704 366-7350 details OhioCleveland area Weekly sessions year-round Cat sites site Willoughby Andrews School has 20-foot flat ceiling 60 x 80-foot floor area other site Meridian Euclid Hospital Euclid has 195-foot ceiling 45 x 70-foot floor area Contact Vein Hacker 25599 Breckenridge Dr Euclid OH 441171807 Tel 216 486-4990 OklahomaOklahoma City 1995 flying sessions/contests Armory Feb 19 Mar 19 1995 Contact Edsel Ford 10613 W Country Drive Oklahoma City OK 73170 Tel 405 691-5411 OklahomaTulsa Roy OMara 9120 E 7th St Tulsa OK 74112 Tel 918 8356880 OregonAlbany Sundays Jan 29 Feb 26 1995 9 am 3 pm gym will open 845 am Schedule both meets 9 am 1145 am IHLGl 1 am Twin Pusher 1130 am Noon 3 pmDuration Events Events EZB Pennyplane Limited Pennypiane Intermediate Stick Ornithopter MiniStick Scale P-24 Bostonian Indoor HL Glider Catapult Glider Helicopter Old Timer Challenge Moorhead Event Twin Pusher Mass Launch Site South Albany High School Gymnasium 3705 5 Columbus St Albany OR Ceiling 42 feet entrants must wear gym shoes Contact Bob Stalick 5066 NW Picadilly Cir Albany OR 97321 John Lenderman 17086 Hall Road Clatskanie OR 97016 Tel 503 728-3884 PennsylvaniaEastern Walt Eggert Jr 26 Moredon Rd Huntington Valley PA 19006 Tel 215 947-4387 PennsylvaniaPhiladelphia Joe Krush 409 Warner Rd Wayne PA 19087 Tel 215 688-3927 VirginiaHampton area Langley Brainbusters winter Indoor contest schedule includes dates Jan 29 Feb 26 Mar 19 Apr 23 1994 1 pm 6pm contests will held SBH Gym will feature following events EZ-13 Limited Pennyplane Bostonian No Cal A-6 8-Inch hand-launch glider MiniStick events count scoring Contact Abram Van Dover 112 Tillerson Dr Newport News VA 23602 Tel 804 877-2830 Washington stateSeattle area Boeing Hawks have scheduled three contests 1995 Naval Reserve Center Lake Union 9 am-4 pm January 14 February 18 March 18 1995 Contact Gene Stubbs NVS 67-ML 237@19 5505 Ann Arbor NE Seattle WA 98105 Tel 206 523-6148 WisconsinRacine Tony Italiano 1655 Revere Dr Brookfield WI 53005 Tel 414 782-6256 Partial Motors topic has come up before column referring quarter- half-motor testing refine model trim actually predict time maximum altitude expect full motors may have seen earlier discussions partial motor trimming uses weighted spacer replace part motor Indoor model half-motor setup length spacer exactly half distance between front rear hooks model must weigh exactly half much full motor used ioop rubber intend use identical weight Quarter-motor testing common spacer three-quarters long hook measurement weighing three times much short loop Finally ratio full-motor length partial motor length must exactly same ratio weight Stan Chilton strips short strips careful make test motor rubber immediately adjacent full motor good prediction Stan Chilton claims almost exact correlation between quarter-motor times full-motor times estimates test altitude cant sure about altitude test altitude estimates correct altitude correlation good also quarter-motor tests Bob Randolph claims model goes least high predicted achieves least four times quarter-motor time exact enough Basically exact can manage Stan Chilton uses electronic balance sensitivity Jim Clem uses precisely constructed ratio March 1995 123 AUTO-VAC SYSTEM Introducing f new fully automatic vacuum bagging sysfem fhat cornpletely self-monitoring has fully adlustoble vacuum switch large capacity reservoir prevenfs frequent cycling vacuum pump Aufo-Yac kif comes completely assembled mounted wood base ready use Included kit E-Z Yac II electric pump rated 24 Hg vacuum switch adlust able 5 22 Hg vacuum gauge large capacity reservoir check valve neoprene tubing E-Z Voc connector two Quick-Lock seals 9 18 wide bagging tube 9 15 wide breather cloth set vacuum bagging instructions - ODoolittleDrSonLeandraCA94577 L1510352-2022 510352-2021 battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field FlytnQ PrecIsIon AerobatIcs Iti * Pilots Manual *A 05 te0inIqUea discussed author has placed top 3 Nets 4 ttn7s f CROSS WIND CORRECTION CHART INCLUDEDlusts control inputs various flight condtionsl __ Highly illustrated CAD Drawings der send $845 $t 50 S&H ____________________ toie Pu/jIIcat/ois 3502 West 96th Circle -- Westminster CO 80030 Attn Dept M Colorado residents add 78% * competition sport flyers pilots want fly safer crosswinds big bird pilots like fly preosely crosswinds sport flyers want imorove flying crosswinds pilots want learn pros S TEALTH wind corrections balance see photo July 94 column Precise goodbut must have equally good altitude measurement predict peak altitude Environmental Concerns As rubber-powered event ambient temperature major variable Rubber has positive temperature coefficient gains energy temperature rises approximate theoretical gain 4% per degree centigrade4% power gain 100 temperature increase So suspect large temperature differential follow quarter-motor test half-motor test An alternate choice somehow measure temperature altitude compute correction turns/launch torque figures can figure profile temperature site correction calculations require data dont have now Suppose want solve torque burst trim problems ratio rubber weight spacer weight need highly accurate need very accurate total weight rubber spacer Also absolutely must keep models center gravity same fly real case short motor gives good test flights dont take long time hopefully dont get too high Other Uses Partial Motors now US Indoor Teams resounding success 1994 World Championships salt should well known past years major problem has make use approximately 210-foot ceiling Low temperatures salt reduce motor output energy ways hard prepare three members US team practiced Santa Ana until combination prop rubber size such could reach top hangar quarter motors expectation colder air would reduce normally predictable 600-foot climb safe value Apparently worked West Coast fliers plan December 4 1994 FID regional trials have one-day access site have decided allow half-motors flights can made day can think no better testimony partial-motor flying Model Aviation Associates Gives Total Flight Line FREEDOM 7 STATE-OF-THE-ART PILOTS READY TO FLY