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IvoProp Numbers

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crazyivan

Joined: 25 Aug 2006
Posts: 62
Location: Pensacola

Posted: Wed Nov 08, 2006 8:24 am Post subject: IvoProp Numbers

After replacing my GSC Prop with an IvoProp Here are a few numbers for comparison.  I have a Kitfox Speedster with a 912 UL (80hp).  These aren't strict test condition numbers but they are close...



Conditions:  temp-50F  Wind<5knots  Takeoff weight-appx 920lbs



68" GSC Prop: Takeoff- 300 to 350 feet

                      Best climb- 900'/min

                      Max cruise- 108 mph



70" IvoProp Ultralight 3 blade set for cruise:  

                     Takeoff- 250 feet

                     Best climb- 1200'/min

                     Max cruise- 120mph



Same IvoProp set for climb:

                      Takeoff- 200 feet

                      Best Climb- about 1500'/min

                      Max cruise- 110mph

_________________
Dave
Piper PA-22/20

propellerdesign(at)tele2.
Guest

Posted: Wed Nov 08, 2006 10:03 am Post subject: IvoProp Numbers

-50F is very cold. 

  

 Did you have the same WOT RPM so you don't compeer  apples with pears.

  

 Dave got 102 with Warp and 104 with GSC but a  little colder giving 2 HP or so more explaining one (1) MPH

  

 Jan

  

  

 [quote]   ---

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Wed Nov 08, 2006 10:22 am Post subject: IvoProp Numbers

Are we missing something here???

Do not archive

Noel



[quote] --

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Ben-PA

Joined: 11 Jan 2006
Posts: 44
Location: Berwick, Pa

Posted: Wed Nov 08, 2006 10:48 am Post subject: Re: IvoProp Numbers

Noel,

I didn't get the numbers either. They are on the web page.



Conditions: temp-50F Wind<5knots Takeoff weight-appx 920lbs 



68" GSC Prop: Takeoff- 300 to 350 feet 

Best climb- 900'/min 

Max cruise- 108 mph 



70" IvoProp Ultralight 3 blade set for cruise: 

Takeoff- 250 feet 

Best climb- 1200'/min 

Max cruise- 120mph 



Same IvoProp set for climb: 

Takeoff- 200 feet 

Best Climb- about 1500'/min 

Max cruise- 110mph



Ben

_________________
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Ben-PA

Joined: 11 Jan 2006
Posts: 44
Location: Berwick, Pa

Posted: Wed Nov 08, 2006 11:51 am Post subject: IvoProp Numbers

That's weird, I copied and  pasted the specs and they didn't come through on the email just like the  original.

  

 DO NOT ARCHIVE

 [quote]   ---

crazyivan

Joined: 25 Aug 2006
Posts: 62
Location: Pensacola

Posted: Wed Nov 08, 2006 1:25 pm Post subject: Re: IvoProp Numbers

I'm actually working off of the forums.matronics.com site and not the list site.  I guess some of the data don't translate.  Try this link...

http://forums.matronics.com/viewtopic.php?t=17756



Jan...Maine is cold but not that bad yet.  +50.    



The engine rpm for the GSC and Ivo set for cruise were about the same:  4900 static and 5500 cruise.

_________________
Dave
Piper PA-22/20

torgemor(at)online.no
Guest

Posted: Wed Nov 08, 2006 1:39 pm Post subject: IvoProp Numbers

Well Noel,



 	  Quote: 	
		   Are we missing something here???

 Do not archive


	




 	  Quote: 	
		   Noel


	


You'll have to click this link, to get the numbers.



IMHO., the numbers could be printed here

 	  Quote: 	
		    http://forums.matronics.com/viewtopic.php?p=73129#73129


	




Torgeir.

propellerdesign(at)tele2.
Guest

Posted: Wed Nov 08, 2006 2:41 pm Post subject: IvoProp Numbers

I am surprised that Dave's GSC did that good, What  stile is it you have on the Warp? straight or taper?

  

 Jan

 [quote]   ---

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Thu Nov 09, 2006 5:48 am Post subject: IvoProp Numbers

Got the figures. thanks



They are well ahead of what I'm getting around the same weight on Aerocet

straight floats.  I actually haven't done any measurements on take off

distance but the times are around 8 to 10 seconds. 

My climb out is initially around 1000fpm (at) 6800rpm.



I cruise at around 6000 to 6200 rpm and the ASI reads around 75 mph GPS

readings average out to around 100mph.



I also changed from a GSC 68" prop to an Ivo in flight adjustable.  I found

the performance to be improved  but the biggest change is the Ivo is  lot

smoother.  In fine pitch ( take off ) the Ivo doesn't ingest as much water

as the GSC there fore doesn't have the same problems with water pitting.

One thing that boosted my overall performance was the installation of a Tiny

Tach.  The original Kitfox tach was so far out to lunch I doubt it will ever

come back.  I'm considering removing it.



Noel



[quote] --

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

kitfoxjunky(at)decisionla
Guest

Posted: Fri Nov 10, 2006 9:33 am Post subject: IvoProp Numbers

I run an IVO Medium on my 912S powered KF IV.  If you want to get an idea of performance off the water...check out this google video showing a landing/takeoff sequence. I have the prop pitched for 100 MPH cruise...and I did not yank or flap it off the water. I can get off much quicker than this if I put my mind to it.   

 

http://video.google.ca/videoplay?docid=-8050884520231071945&q=kitfox 

 

 

Gary Walsh

 KF IV  Anphib 912S

 C-GOOT

 www.decisionlabs.com/kitfox

 

 do not archive 

 

 

    "Noel Loveys" <noelloveys(at)yahoo.ca> 

Sent by: owner-kitfox-list-server(at)matronics.com 

11/09/2006 08:47 AM 

Please respond to kitfox-list          

        To:        <kitfox-list(at)matronics.com> 

        cc:         

        Subject:        RE: IvoProp Numbers 

 

 

--> Kitfox-List message posted by: "Noel Loveys" <noelloveys(at)yahoo.ca>

 

 Got the figures. thanks

 

 They are well ahead of what I'm getting around the same weight on Aerocet

 straight floats.  I actually haven't done any measurements on take off

 distance but the times are around 8 to 10 seconds. 

 My climb out is initially around 1000fpm (at) 6800rpm.

 

 I cruise at around 6000 to 6200 rpm and the ASI reads around 75 mph GPS

 readings average out to around 100mph.

 

 I also changed from a GSC 68" prop to an Ivo in flight adjustable.  I found

 the performance to be improved  but the biggest change is the Ivo is  lot

 smoother.  In fine pitch ( take off ) the Ivo doesn't ingest as much water

 as the GSC there fore doesn't have the same problems with water pitting.

 One thing that boosted my overall performance was the installation of a Tiny

 Tach.  The original Kitfox tach was so far out to lunch I doubt it will ever

 come back.  I'm considering removing it.

 

 Noel

 

 

 

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