Sign in to follow this  
Guest jcomm

Twitchy Prop RPM

Recommended Posts

Switched a cylinder prop plane to a turbo prop plane. All works well, but when I'm in a level cruise and my speed has stablized, the RMP needles go wonky. They twitch rapidly from over what I've set to under what I've set. Any one else had this trouble with any model? Might give me a clue where to poke it next... :)

Share this post


Link to post
Share on other sites
Help AVSIM continue to serve you!
Please donate today!

My immediate "first try" would be a different RPM gauge, just in case it's a coding issue in the gauge you're using, but I've no experience with turboprops per-se, so this is just a guess.Good luck.

Share this post


Link to post
Share on other sites

I did, but no good.The gauge I am using is from the King Air, so it's a default gauge...

Share this post


Link to post
Share on other sites

Look at prop_tc and prop_moi.Try prop_tc values between 0.002 and 0.005. Adjust Prop MOI based on the simplistic formula:Prop MOI = (0.6/386) * prop weight (lbs) * Prop Diam (ft) ^ 2

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this