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Download the latest plans our members added to the site. [More here...]
Pfiff Plan 173 Type Model RC Sport Trainer. Wingspan 44in.Biplane. Engine Glow .15 - .23 Control 1 channels. Designer John Garde. Magazine RCModeler June 1966. More info here...
Deb-N-Air. Plan 172. Type Model RC Sport Acrobatic. Wingspan 68in.Lowwing. Engine Glow .51 - .61 Control 4 channels. Designer Bryan Lakin. Magazine RCModeler June 1966. More info here...
Hobo. Plan 171. Type Model RC Sport. Wingspan 49in.Biplane. Engine Glow .40 - .45 Control 3 channels. Designer Don Gerner. Magazine RCModeler May 1966. More info here...
Digifli Plan 170 Type Model RC Sport Acro. Wingspan 48in.Lowwing. Engine Glow ST .40 Control 4 channels. Designer Dick Smith. Magazine RCModeler May 1966. More info here...
3D CAD designed and 3D printed model airplane kits. [More here...]
Wingspan: 1180 mm / 46.5 inch Lenght: 1070 mm / 42.1 inch Height: 260 mm / 10.2 inch Wing area: 21,2 dm2 / 2.3 square feet Wing loading: 15,1 g/dm2 / 4.9 oz/square feet Center of gravity: 84 mm /...
PRINTED WEIGHT 420gr TAKE OF WEIGHT 750gr STALL SPEED 35kmh WING LOADING 57/gr/dm² WING SPAN 800mm...
PRINTED WEIGHT 410gr TAKE OF WEIGHT 750gr STALL SPEED 27kmh WING LOADING 47/gr/dm² WING SPAN 1220mm (48") WING SURFACE ...
STRUCTURE WEIGHT 480gr TAKE OF WEIGHT* 780gr STALL SPEED 30kmh MAX GLIDE RATIO 18 MIN SINK RATE 0,58m/s WING LOADING ...
12 Remote Control Model Airplane Plans. [More here...]
New England's modeling legend Harvey Thomasian designed the Half Wave in 1954, a rudder-only sport aircraft spanning 36" and designed for a 1/2A engine - a McCoy 049 diesel is shown on the...
A 2.5in to the foot. (1/5 approx) detailed, scale plan of the Canadian Air Force Chipmunk.
12 Control Line Sport, Scale, Vintage Model Airplane Plans plans. [More here...]
This is a control line non scale, pure model sport airplane designed to be flown outdoors, designed by Paul Del Gatto, published in the 1962 Model Airplane News Annual. This would make a nice model...
This is a control line semi-scale observation airplane designed to be flown outdoor. Designed by Walter A Musciano, you will need some experience to build a model from this plan as it is not well...
The Pucara is an Argentine ground-attack and counter-insurgency aircraft, an all-metal two person military aircraft with twin engine turboprop engines and a high-mounted "T" horizontal...
The SAAB 18 was a twin-engine bomber and reconnaissance aircraft, designed and built for use by the Swedish Air Force by Svenska Aeroplan AB (SAAB) in response to a 1938 design competition. Due to...
12 Free Flight, Antique, Vintage Model Airplane Plans. [More here...]
Redesigned by Anthony C Bacchi. Traced from an original plan by Bill Thompson 6-19-64.
This is a free flight non scale, pure model sport glider designed to be flown outdoors, the plan is from the Netherlands and the notes on the plan are not in English and will therefore need to be...
12 Remote Controlled Model Boats. [More here...]
A tunnel catamaran power boat model for 1.5 - 2.5 cc motors. This model has been converted to electric power using a brushed 540 race motor and 6 sub-C NiCd cells but would benefit from a brushless...
Latest comments by our members.
Latest model airplane plans edited by our Editors
| #ID | Name | Type | Class | Editor | Last Edited |
|---|---|---|---|---|---|
| 95885 | Pfiff |
Airplane |
Radio-Control |
16/04/21 08:52:04am |
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| 92942 | Deb-N-Air |
Airplane |
Radio-Control |
16/04/21 08:50:52am |
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| 92941 | Hobo |
Airplane |
Radio-Control |
16/04/21 08:49:47am |
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| 95883 | Digifli |
Airplane |
Radio-Control |
16/04/21 08:48:36am |
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| 92029 | Wolfmeister LR-3 |
Airplane |
Radio-Control |
16/04/21 08:45:07am |
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| 83354 | Pipsqueak RCM |
Airplane |
Radio-Control |
16/04/21 08:42:38am |
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| 81587 | Grumman Gulfhawk 54in |
Airplane |
Radio-Control |
16/04/21 08:38:52am |
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| 92244 | BD-1 |
Airplane |
Radio-Control |
16/04/21 08:34:44am |
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| 92940 | Tee Dee Bee |
Airplane |
Radio-Control |
16/04/21 08:31:50am |
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| 92938 | Pikolo |
Airplane |
Radio-Control |
16/04/21 08:29:55am |
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| 90735 | Shoestring |
Airplane |
Radio-Control |
16/04/21 08:28:11am |
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| 80098 | The Cardinal |
Airplane |
Radio-Control |
15/04/21 03:11:49pm |
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| 93454 | Show Off |
Airplane |
Radio-Control |
15/04/21 09:01:05am |
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| 93452 | Good Neighbor |
Airplane |
Radio-Control |
15/04/21 08:59:04am |
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| 93453 | Hammerhead |
Airplane |
Radio-Control |
15/04/21 08:57:58am |
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| 93460 | Kahuna |
Glider |
Radio-Control |
15/04/21 08:56:25am |
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| 93459 | Gary I |
Glider |
Radio-Control |
15/04/21 08:54:56am |
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| 83265 | Phoenix |
Airplane |
Radio-Control |
15/04/21 08:52:18am |
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| 93451 | Patriot |
Airplane |
Radio-Control |
15/04/21 08:45:00am |
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| 90510 | Royal Coachman |
Airplane |
Radio-Control |
15/04/21 08:23:14am |
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| 97251 | Challenger |
Boat |
Radio-Control |
15/04/21 08:20:10am |
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| 92202 | Wild Child |
Airplane |
Free-Flight |
15/04/21 08:16:44am |
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| 93450 | Aeolus |
Airplane |
Radio-Control |
15/04/21 08:15:10am |
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| 93449 | Kwik-Fli II |
Airplane |
Radio-Control |
15/04/21 08:13:22am |
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| 82482 | Lorelei |
Airplane |
Radio-Control |
15/04/21 08:11:48am |
Double Feature - twin pusher or twin tractor?
Small plane specialist Ken Willard designed the Double Feature, powered by twin reed valve Cox 049 glow motors with integral tanks, with both motors (installed in 'pusher' style, as shown on the plans) sharply angled for their thrust lines to pass through the plane's center of gravity. His design intent was to minimize the yawing moments resulting from one engine exhausting its fuel supply before the other; his hypotheses were proven effective by flight. Not shown on the plans, but in the pictures that you noticed, is the same design with twoCox engines mounted in conventional 'tractor' style, evidently at the request of model friends who wanted a sporty twin engine model; note that the physics and engineering of this arrangement, to mitigate the 'engine out' yawing moments, won't work as well as for the 'pusher' arrangement. Two small electric motors would be a good pragmatic solution as they can be closely monitored in flight and the plane landed before a motor 'dies'. Thus the answer to the question raised: the builder and flyer can install the two engines either as a 'pusher' or a 'tractor', a personal choice!