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Old 05-18-2012, 08:00 AM
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mach2
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Default RE: Great Planes Extra 300 GP/EP

Thanks.

Im gonna go back to a engine and prop question. First off, I bought this plane with a OS 46ax in it and it seemed way underpowered. However, i watched a review video with someone doing a high altitude hover with the 46 (albeit a ton of throttle).

Anyway, I put a 55ax in it. It flies way better. I started off with a apc (not a big fan, but the local store didnt have any xoars in stock) 12x6 and it was okay. I wanted a little more pull so i went to a 12x5, but the design is different between the two. the 12x5 has a narrower blade towards the tip which I would think reduce the amount of thrust. So im going to order some xoar props and hopefully that will be better.

What props are you guys using with this plane and a 55ax?

Now a motor question. Im kinda spoiled by my DLE20, so im thinking of putting something like a OS 95v four stroke in the Extra. Im considering this because GP recommends a .81 size FS, and the 95 is the same weight. And ive got the difference in weight between the 55ax and the 95v in the cowl with lead weights anyway.

Anyone with experience with any of these combos, please chime in.

Thank you,
Jeremy