Setting Whirlwind GA-RW3B pitch on 912ULS

[3kdscf]

Rotax states that at full throttle the engine must be operated at a minimum RPM of 5200. At least on the 912ULS - the other 912 versions may or may not be different. Reduced throttle settings not an issue.

Thanks Dave! I missed that in the Rotax manuals. 19.5 degree pitch which gives 5500 on a 65mph climb is the way I will go. Just need to go back in my notes and see what the corresponding static RPM is to insure its in the 5100-5300 range specified.

[jiott]

That's what I use, 5250 rpm static, with my Whirlwind 70" GA-RW3B on a 912uls. A good compromise.

[Geek]

Thanks Eddie and Jim. I'll chime in later once I fly this thing. Still playing FAA but in the meantime - I got a hangar so that's progress!!!

G

[Geek]

For the definition of redundant - see redundant. Sorry about the double pump.

G

[desertdave]

Test flew the plane this morning and 5250 static is the sweet spot I was looking for. Climbs great at 65mph and cruses about 100mph indicated in the traffic pattern at 5200 RPM. Thanks all!