Twin Pusher (oz16681)
About this Plan
Twin Pusher (Class D Twin Pusher). Free flight model for rubber power. Wingspan 39 in.
Quote: "Class D Twin Pusher. Official time 21 m, 10 s. Designed by Wally Simmers. Source: Frank Zaic 1935-36 Model Aeronautic Yearbook. Drn by R Gregory."
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(oz16681)
Twin Pusher
by Wally Simmers
1935
39in span
Rubber F/F Multi Pusher
clean :)
all formers complete :)
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Submitted: 15/03/2026
Filesize: 309KB
Format: • PDFbitmap
Credit*: JJ
Downloads: 154
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User comments
These things dominated contest flying back in the 20's period, with a climb like an F-104. Unfortunately the glide also resembled an F-104. But if you got it high enough, the glide didn't matter. I built something similar back in 1960, although mine had only one pusher prop, the rest was pretty much the same. A sheet of 1/16" balsa wrapped around a broomstick was my fuselage, with rubber inside, no worry about explosions if you wound it too much. Notice one side of the A-frame is longer to allow the two 12" props to overlap. No C/G is mentioned, but if like mine, it balances ahead of the wing. I would guess about 2 inches. Forward canard has a lot of positive incidence because it, unlike a conventional tail, also contributes lift, one of the secrets of canard design. Mine had a big wad of black Pirelli rubber the entire length of the hollow fuselage, gave it a real good climb. There is no rudder, the drag from the big props does the same task. I trimmed mine by shimming the forward plane side to side, doesn't take much. One of its last flights was at night, with sparklers rubber banded to the wingtips, looked like rocket trails on the way up. They burned for about one flight. No, it didn't catch on fire, we flew it that way only once on the golf course a short bike ride away from my house. Old pictures show someone winding a twin pusher with a double barrelled winder made from an eggbeater. Modern eggbeaters seem too flimsy for the job. It's progress.doug smith - 08/04/2026
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- Twin Pusher (oz16681)
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Notes
* Credit field
The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.
Scaling
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