Originally Posted by
laluna1223
I have about 500 hours in both B and C models flying 135 charter out of MI. I never had a problem with them. BABY the engines. If I remember right (it's been about 5 years) Start pulling back power at 25 miles to 23 RPM, then 20 miles out to 20-21 RPM, 15 miles at 18RPM and so forth. I believe you should be landing over the numbers with about 17RPM. I also had ballast in the nose as well.
Oh be careful with ice. The leading edge on the elevator is too thin for the boot. They are prone to tail stalls.
Hope this helps.
If you have that many hours in the 421, then you would know it's manifold pressure you are changing (reduction), not RPM. Props generally stay set somewhere from 1700-1900 RPM all the time. Only time you would increase RPM (albeit temporarily) would be if you were flying high, very cold, for a long time. You have to exercise the hubs on the props with warm oil occasionally so they will respond when necessary.
