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tmccaa
12-29-2020, 02:32 PM
Does anyone happen to know the starting warp drive compass pitch setting for a Warp Drive 3 blade tapered prop on a Rotax 912 ul? I am installing a new engine and new prop and Warp Drive is out for the holidays?

desertdave
12-29-2020, 03:27 PM
Here is a good start:
https://teamkitfox.com/Forums/threads/7822-Prop-Pitch-again?highlight=warp

tmccaa
12-29-2020, 03:57 PM
[QUOTE=desertdave;96649]Here is a good start:
https://teamkitfox.com/Forums/threads/7822-Prop-Pitch-again?highlight=warp[/QUOTE

Looks like a good start is maybe around 13. I ll start there and see how it goes.

Dave S
12-30-2020, 11:30 AM
Hi Tom,

Sorry - saw your post a little late. I do have the same prop on our Rotax; and, back when I was setting it up I asked the WP home folks about setting the prop pitch - same question - where to start. Found my notes:o

They told me that 11 as a minimum and 15 at a maximum is the acceptable working range (Fuselage level, blade being measured level and measure at the tip with their protractor) and starting @ mid range is probably a good place to start from and adjust from there according to performance results.

Its always a compromise with a non air adjustable prop; however, since Rotax recommends no lower RPM than 5200 at full throttle ( to assure no detonation occurs), I adjusted to my final setting to 12.5 which ensures min RPM at full throttle on takeoff @ Vx while preserving a decent cruise speed.