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Interesting engine configuration.  Testor's BD-5? Cox_ba12




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September-2021
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"Cherry Bomb" .051 engine

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Post  rsv1cox Tue Jan 06, 2015 9:04 am

Interesting engine configuration.  Testor's BD-5? TestorBD-5_zps3a25b64f

Testors model 4800.  Shows as a BD-5.  Anyone know anything about it?
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Post  roddie Tue Jan 06, 2015 9:17 am

Mark Boesen could probably tell you what it's from.. but it might be a cool candidate for a P39 Airacobra!! It would be a wicked companion for your P38!!!

I see that it's got a L/H prop.

RKFlyer built this beauty for the first CEF Reed Speed Contest.

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Post  rsv1cox Tue Jan 06, 2015 9:34 am

The P-39 was the first thing that popped into my head whenI first saw this engine.  Another one of my favorite airplanes.  A dog to most, but it just looked right.  Pilots must have loved that driveshaft running between their legs. Smile

That's right, the BD-5 was a pusher. I would have to re prop it. What would happen if you just turned the prop around? Embarassed
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Post  rsv1cox Tue Jan 06, 2015 9:45 am

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Post  KariFS Fri Jan 09, 2015 12:00 pm

Here's one fast looking mid-engine model:

http://www.outerzone.co.uk/plan_details.asp?ID=5056

I like the Airacobra design. From an engineering point of view it's great: you can mount a huge cannon up front, visibility is great to the directions that matter, engine protects the pilot from behind, air intake is high above to prevent dust getting into it, nosewheel landing gear provides good visibility when taxiing... The list is almost endless.

Engineering-wise it was too bad the bean-counters ruined it by not allowing the proper supercharger. From the history-point-of-view the less-powerful engine may have been a good thing, making the plane less competitive against the Bf109s of the Finnish Air Force Flying

There is one Airacobra in Finland, conserved complete with the Soviet red star insignia. It was shot down over Finland during WWII. Mean looking machine Devil
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