Manifold Pressure/RPM Relation
ual763 last edited by
Shouldn’t the Manifold Pressure increase when RPM is decreased with the Prop lever?
mizra108 last edited by mizra108
It does, but only just slightly. During run-up, when cycling the prop for example, a drop in 500rpm would yield about an 1” rise in manifold. For lower rpm reductions of a couple hundred rpms at a time, you may see perhaps a 1/2” rise and for rpm adjustments of 100 or less, MP needle movement is even noticeable. @ual763