ORIGINAL: lasko220v
My local club is planning to use a thunder tiger pro 46 as the standard racing engine and wants to require a 9-6 prop and rev the engine to 17000 rpm. Is this recomended for this sport type engine if broke in properly? The matching plane is a sig four star. Thought these engines were designed to run slower and more powerful at a lower rpm. Any thoughts would be appreciated.
If your club is planning to require a specific prop, engine, and airframe why not avoid any potential issues with the engine (as noted by others already) and run a 9-7 or 10-6? Obviously the goal is to keep things simple and level the field, so the prop choice is not critical - therefore why not use a choice that is kinder to the engine and more suited to the aircraft? The 9-6 seems a bit counter-intuitive.
MJD