RCU Forums - View Single Post - 20CC WEEDEATER ENGINE IN CMP T-34 MENTOR ?
Old 12-25-2010 | 05:43 AM
  #18  
sim-daddy
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From: San JuanPuerto Rico, PUERTO RICO (USA)
Default RE: 20CC WEEDEATER ENGINE IN CMP T-34 MENTOR ?


ORIGINAL: WildeOne

There's another reason to forget a magneto gas engine. In the case of the T-34, the cowl would require some serious and ugly surgery to accommodate a flywheel up front. I'm eventually going to build a 120 size Tiger Moth from NitroPlanes. I'm powering with a Ryobi 31 and it required conversion to CDI to deal with the cowl. With CDI, the entire engine will easily fit inside, with only the exhaust stacks coming out the bottom. With the flywheel, the cowl would have been a disaster.


Thanks for your contribution , I realise that no one really supports the magneto being used with this project .......and I must agree that i do NOT want to chop down the nose of my aircraft NOR make a mess of my cowl to allow for the magneto .

But you guys have to bear with me ...as Ireally wanted this plane to be as efficient as possible ...ie. normal gas mixed with a little oil and only one battery to power the receiver. Now I can see that the argument has been greatly enhanced to support the use of the CDI , particularly considering the unsightly modifications which have to be made to support the magneto set-up.

So in my quest to achieve this partially green "MOD" I suspect I may have to lean towards using a cdi ......so I have a few questions for those used to the cdi set up ...: cant it be powered by "AA" rechargeable batteries and what sort of flight time can i expect with these batteries ....or the normal battery pack ?