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Can i put an os 55ax on a GP big stick 40?

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Old 04-27-2014, 08:15 PM
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Jari2340
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Lightbulb Can i put an os 55ax on a GP big stick 40?

Does it fit properly ? The plane is 40-51

Last edited by Jari2340; 04-28-2014 at 05:47 PM.
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Old 04-28-2014, 05:58 AM
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AMA 74894
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moving to the Sport Flying Forum, you'll get more answers there.
I DO think that will fit, but I'm not sure it'll fit without ANY modification.
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Old 04-28-2014, 09:45 AM
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OS 55 AX has the same mounting dimensions as the OS 46
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Old 04-28-2014, 05:46 PM
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Jari2340
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The plane is 40-51 , and im putting 55 on it , im guessing thats okay
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Old 04-29-2014, 03:04 AM
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Jari, i put an OS 55 AX on my re-covered GP Stik 40. No problems at all.....Gene
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Old 05-18-2014, 11:19 AM
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I have one on mine. No problem, it is a perfect engine for it. I built mine as a tail dragger and mounted the battery in the rear fuselage to get it to balance without adding weight. I made a hatch on the bottom of the fuselage to put the battery in and then covered it over with Monokote.
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Old 05-19-2014, 06:58 PM
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A 55 AX will be fine on it - and I bet that thing will be a real fire cracker too! I have a 46 FX on mine - and it flys great. Mine is kit built and has been converted to a tail dragger. I know with my 46 FX and my battery and receiver sitting right on the center of gravity line mine balances pretty well - just very very slightly nose heavy. I'm not sure how well a heavier 55 AX would balance, but every plane is a little different so maybe yours will balance well with a 55 AX up front. I've got a 55 AX laying around as I speak - maybe I'll test it out in my good ol' Stik 40, mine's got 70 + flights on it and it's rock solid - I've yet to fly it this season but I'll be dusting it off soon enough.
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Old 05-19-2014, 08:02 PM
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Thanks guys! I gave it a try and it was amazing! Now it has 30+ flights and its super fast too! (100mph+) , soon i will be putting a pipe on it!
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