Have a OS 40 LA en route to me that I planned on using in my Tower hobbies .40 trainer kit, and was just wondering if I made a wise choice going with the 40 size engine? Seems I stumbled onto this site a little late in the building process, it's given me a ton of info thus far

Thanks in advance!


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The 40LA should be fine with a 10x6 or 11x5 prop.
Welcome RCU!

I have that same configuration and it flies great.

Thanks for the replies! Glad to see I won't have to return to 40.

Happy Flying!

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