N916K
Well Known Member
I have a 9A that flew on Saturday for the first time. It has a 160hp o320 and a 79" Sensenich prop. There are no gear leg or wheel fairings.
I'm not too sure about the engine speeds I'm getting. The static RPM is 2100 rpm and climbs out at 2200 rpm. While cruising at 3000 feet I was only getting 2450 rpm at WOT and and an IAS of 145-155 mph. I have a Grand Rapids EIS with the tach coming off the mag so I think the engine speeds are correct. The manifold pressure at WOT is 28.7. I thought I would have to be throttling back at low altitudes with this prop. I'm a little worried about the engine power output. I'll check compression tomorrow.
So any of you guys that are flying with a Sensenich prop have any numbers like this?
Thanks
Cam
I'm not too sure about the engine speeds I'm getting. The static RPM is 2100 rpm and climbs out at 2200 rpm. While cruising at 3000 feet I was only getting 2450 rpm at WOT and and an IAS of 145-155 mph. I have a Grand Rapids EIS with the tach coming off the mag so I think the engine speeds are correct. The manifold pressure at WOT is 28.7. I thought I would have to be throttling back at low altitudes with this prop. I'm a little worried about the engine power output. I'll check compression tomorrow.
So any of you guys that are flying with a Sensenich prop have any numbers like this?
Thanks
Cam