Matronics Email Lists :: View topic - IVO IFA Prop Information

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

IVO IFA Prop Information

Matronics Email Lists Forum Index -> Kitfox-List

View previous topic :: View next topic

Author Message

RRTRACK(at)aol.com
Guest

Posted: Sat Apr 28, 2007 8:14 pm Post subject: IVO IFA Prop Information

I have just installed a new 70" IVO Patriot in-flight adjustable prop  on my 912 UL. I need help in 

 adjusting the pitch range to get the most out of the prop without lugging  the engine too much.

  

 What is the best RPM for climb out?

 How do I set it up for cruise and not lug the engine too  much?    

  

 I flew it twice tonight and the IVO was smooth and quite. 

 My clime rate (at) 1000# take off weight, 1000 MSL, 60 degree OAT, was 1200  FPM. 

 But the cruise speeds really amazed me. At least a 15 MPH  improvement!

 115 MPH (at) 5200 RPM  (my normal cruise rpm)

 125 MPH (at) 5700 RPM  (full throttle)

 verified with my GPS several times! 

  

 Please advise to the best way to use this type of prop.

 Thanks,

  

 Mark

Hartford, Wisconsin

Kitfox 5 Vixen 912  UL



See what's free at AOL.com. 

  [quote][b]

- The Matronics Kitfox-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kitfox-List

wingsdown(at)verizon.net
Guest

Posted: Sat Apr 28, 2007 8:39 pm Post subject: IVO IFA Prop Information

Mark, not sure about your particular engine  but all engines have a power band in which they create the most torque.   You should be able to get those numbers from Rotax. If you keep the engine in  that range you can play with the pitch and throttle to optimize power and  cruise. The engine doesn't care what it is turning just what RPM and load it is  under. If you begin to lug your engine you should see some unsmooth running and  and increase in EGTs and or cylinder head temps.  It is always better to  run a little faster that to lug the engine. You can build up some pretty  dangerous cylinder pressures in a short amount of time.  Say 125 is pretty  fast for a fox. 

 [quote]   

   --

- The Matronics Kitfox-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Kitfox-List

Display posts from previous:

	Matronics Email Lists Forum Index -> Kitfox-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum