Originally Posted by
elmshoot
Try the 10.5x4.5 APC its faster than the 9X6. If you are running a 10x6 I don't see how you have engine problems since you aren't turning high RPM. If that's the case you need to understand how to dial a needle valve.
Are you allowed to run the bubble free tanks like the Tetra tanks? that might also be an issue.
Sparky
Hi,
We just tested yesterday with some props arrival, those Q5 likes 9x7.5, those are friend's however.
My seeker run better with heavier prop 9x8, static RPM is about 15400, and 16k+ in the air.
I do understand how to dial the valve, had to richen the needle abit and it gets leaner towards the end of the flight.
The original post was trying to get better engine with similar performance just for battling possible longevity issue with running the OS at limit.
I just read the other day, of tuned down Jett engine that run similar to OS 46, I will have to inquiry them if it would be suitable replacement for practicing