MT prop etc
in 912 / 914 Technical Questions
4 years ago
Hi Folks, thank you for adding me to the group. I have a Dyn Aero Sportster with a 912ULS, MT7-A prop and a P-120U controller.
so here goes! On preflight check, the controller as I understand it is set to auto, then engine rpm idle plus 200, ie around 1600 engine rpm. You then select the rpm dial and place to minimum around 1400 prop, RPM is supposed to drop and green light goes out select max rpm, white light goes outrpm increases green light on.....only it doesn’t. Also how do you know what the proprpm is without strobing it? Manifold pressure on shut down is ambient ie 30.5 inches 2035 mbs, on running up to 3500 rpm manifold pressure shows 13.5
any thoughts advice would be welcomed, Many thanks and a happy new year to all!
rich
