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M3X, 912uls prop choices

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icrashrc

Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In

Posted: Sun Feb 24, 2008 4:57 pm Post subject: M3X, 912uls prop choices

I have an opportunity to pick up a new Warp Drive prop and hub but I'm not sure if i should. The price is OK but it's a 68" standard [not taper] and doesn't have the nickel LE's. It does have the proper hub and rotation for a 912 as a pusher. I believe this prop was standard on one of the Rans planes. I think most everyone is running a 70" prop on their Mark 3's. John H, you run a 72", correct? 

Is 68" too small? 

Since it's a smaller prop does the fact that it's not tapered help make up for the lack of taper?

Is the nickel LE necessary or just nice to have?

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Scott

www.ill-EagleAviation.com

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John Hauck

Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)

Posted: Sun Feb 24, 2008 5:24 pm Post subject: M3X, 912uls prop choices

Scott:



I'm flying with a 70" three blade, fast taper, nickle leading edge.



John W is flying with the same prop except his is 68".



There is a difference between the tapered blade and the straight blade.  Get 

that little bit of pitch and thrust change at cruise, take off and climb, 

that you don't get with the straight prop.



Nickle leading edges protect the blades in rain, sand, etc.  If you get 

caught in rain, and it will probably happen, rain will erode carbone fiber.



Way back in 1993, Daryl sent me straight blades and tapered blades to test 

before I made up my mind on what I wanted to fly with.  I liked the results 

from the tapered blades and have stuck with them since then.  You won't be 

disappointed.



john h

mkIII

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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama

by0ung(at)brigham.net
Guest

Posted: Sun Feb 24, 2008 10:36 pm Post subject: M3X, 912uls prop choices

I have an opportunity to pick up a new Warp Drive prop and hub but I'm not

sure if i should. The price is OK but it's a 68" standard [not taper] and

doesn't have the nickel LE's. It does have the proper hub and rotation for a

912 as a pusher. I believe this prop was standard on one of the Rans planes.

I think most everyone is running a 70" prop on their Mark 3's. John H, you

run a 72", correct? 

Is 68" too small? 

Since it's a smaller prop does the fact that it's not tapered help make up

for the lack of taper?

Is the nickel LE necessary or just nice to have?



--------

Scott

 	  Quote: 	
		  >>>>>>>>>>>>>>>>>>


	


When I called Darrell at Warp Drive,,,  his suggestion for my 912 was the 68

inch standard tip...  he suggested the standard tip for sea planes and high

altitude applications..i am at 4226 ft msl...  I could have opted for the

leading edge treatments...  but he said I could have it added at any time if

I was to have any problems...    and for 6 years now I cant tell any

difference from when I bought it.



Boyd

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icrashrc

Joined: 16 Mar 2006
Posts: 247
Location: Mishawaka, In

Posted: Mon Feb 25, 2008 9:00 pm Post subject: Re: M3X, 912uls prop choices

Thanks to both of you for the quick responses. I went ahead and bought the prop as is and will probably have nickle installed by Warp. They told me it was no problem to do and the cost would be the same as if i ordered it that way. Thanks again,

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Scott

www.ill-EagleAviation.com

do not archive

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