Prop Pitch

Anybody have info on prop pitch I have a 80hp rotax 912 with GSC 3 blade wood 68 inch on my 701 with low RPM 4400 is max. Wondering what degree i should use at the tip for short field takeoff and more RPM. Thanks

Views: 395

Comment

You need to be a member of Zenith Aircraft Builders and Flyers to add comments!

Join Zenith Aircraft Builders and Flyers

Comment by Andrzej Kostkiewicz on December 12, 2014 at 5:34am

Hi 

There is explained how it should be done . 

http://www.rotax-owner.com/rotax-blog/item/9-understanding-the-grou...

It exacly corresponding with Bob 

Comment by Bob McDonald on December 10, 2014 at 9:19am

Assuming your prop is a ground adjustable pitch model. Set pitch between 10 - 12 degrees. If with the brakes set ON or the aircraft secured WOT the RPM should be between 5200 - 5300 on the ground (static run up). In flight straight & level WOT the rpm should 5600 - 5800 with the idea being that if a throttle cable breaks the engine goes WOT but does not over rev past 5800 red line. A change of 1 degree can make a 250 - 300 rpm difference. Take your time to set the prop pitch correctly.

Comment by Andrzej Kostkiewicz on December 10, 2014 at 8:48am

David 

It looks that Your prop is to havy . On ground You sholud take aprox 5200- 5300 rpm ( no less 5200 according rotax sugestions )  . At max speed You should to get 5500 - 5600  rpm this is a setup that i have on 701 rotax 80hp

New from Zenith:

Zenith Planes For Sale 
 

Classified listing for buying or selling your Zenith building or flying related stuff...

                                                     

Weather Maps

Custom Instrument Panels
for your Zenith:

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, power distribution panel, Approach Fast Stack harnesses, Dynon and Garmin avionics, and more.

Custom Upholstery Kits for your Zenith Aircraft:

Zenith Vinyl Upholstery Kits

Zenith Apparel from EAA:

Zenair Floats

Flying On Your Own Wings:
 A Complete Guide to Understanding Light Airplane Design, by Chris Heintz

Builder & Pilot Supplies:

How to videos from HomebuiltHELP.com

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.

 

West Coast USA:

Transition Training:

Wheels & Wings

Pro Builder Assistance


 

Aircraft Spruce & Specialty for all your building and pilot supplies!

© 2019   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service