View Single Post
Old Aug 24, 2010, 02:31 AM
eJets is offline
Find More Posts by eJets
electric power,what else!
eJets's Avatar
Joined Dec 2005
277 Posts
Hi Bob,

your propeller runs into the prop stall when Pitch : Diameter > 0.66 (you have 12:12 = 1!). with high pitch propellers the air looses contact to the propeller blade. this result in significant less thrust (you can even hear that as the propeller gets suddenly louder.)
in this case you will not reach the static thrust (and calculated current) on a static measurement - you rech only the Stall Thrust figure.
high pitched propeller makes only sence for speed models (like pylon). If you want to use this setup in a none speed model just stay below 0.66 pitch-diameter-ratio. so, the question now is what type of plane you want to fly....?

kind regards
eJet
eJets is offline Find More Posts by eJets
Last edited by eJets; Aug 24, 2010 at 03:38 AM.
Reply With Quote