Kiev prop

[Slyfox]

Dick, try the IVO light prop in either ground adjustable or in-flight adjustable. You'll be done shopping props. and having to sell them after 2 flights. Smoother than the Warps and if you get the ground adjustable it takes about 20 seconds to try another pitch setting. No protractors or one blade tracking differently than the other two. You should be easily cruising at between 105 and 110 mph with strut fairings and the 912 Rotax.

SHHHH. quit. don't give out my secret to my aircraft performance. I love wizing by other kitfox's that have another prop. Seriously, if you go IVO you won't go back.

[catz631]

Well I checked my tach today with a digital tach check instrument and the engine tach was close enough...bummer !
Steve,give me a good place to check on the Ivo prop complete with pictures of it.
Thanks,
Dick

[Slyfox]

go here. http://www.ivoprop.com/ John sells them as well.

[sturdee]

Hi Folk, I Have the two blade manuel in flight adjustable woodcomp varia composite prop from junkers czech republic. Have no doubt this combination suits the 80hp rotax, smooth, simple light and easy to install, max rpm on take off cruise 90 kts 5200 rpm, If I wish can idle engine 600 rpm, mk 4 1050lb speedster options reg G-FOXF. ps still have the gsc hanging in the garage,

[catz631]

Steve,
Thanks for the info on the Ivoprop. I checked out the site. I am a little skeptical now. I don't particularly like the idea of tape on the leading edge. It's a little cheap in my mind. I had to do it on a Hegy prop once to keep from abrading the leading edge but then of course,it was wood.(used electrical tape) I much prefer the inlaid nickle on my Warp or the brass on the Kiev. The Ivo is not a particullarly good looking prop but the pitch adjustment looks nice! I have never seen one (again East/West US thing)
I think it is difficult to tell hype from real numbers.It's kind of whatever you own is the best. I had heard the same improvement in performance from the Kiev prop and I sure like it. It is certainly the best looking. I really don't doubt the performance improvement is there but ,not on my aircraft. That smooth cowl has got to make a difference OR...OR.. I had the wrong size prop.
I looked at the Whirlwind ,know nothing about it other than it is 3 lbs heavier then my Warp. I did see it on Johns aircraft at Lakeland last year. It too is a nice looking prop.
I guess I am obsessing over this issue but,like all of us, I have an intense interest in my plane and want the best !
Dick

[catz631]

Well guess what ! As my new Kiev went out the door , I double checked the paper work and found out that I had the wrong prop for my engine ! The specification sheet showed that the distributor sent the wrong prop. My engine has a 2.27 gearbox ratio vs the 2.43. The one I had was for the 2.43. The specs list another model prop for the 2.27. I called the distributor and asked him to check with the factory to see if this made any difference. If it does,I will order another one cause, I LIKE IT !
Dick

[jrthomas]

I'm sure happy to hear that you received the wrong prop. I didn't buy my Kiev based on the good looks alone. I had heard good things about their performance and about how smooth and quiet they are. I hope you'll let us know how this all turns out. Thanks, James Thomas

[catz631]

Well,I did it again. I bought the 67.5 inch Kiev which is supposed to be spot on for my engine and gear ratio. The last one was for the 100hp and and gave me much degraded performance so I sold it to a friend that had a 912ULS. The new prop is beautiful,turbine smooth and quiet. In fact a neighbor said there was a dramatic decrease in noise when I took off. Those are the good points (which is enough to keep it)Unfortunately, it is no better in performance then my Warp was. Oh well !
I had concidered the IVO cause the reports are good but it is too "butt ugly" for me and looks like it should be on a model airplane.
In reality, my plane has alot of drag and a small engine so perhaps I am expecting a bit much. More speed would be nice (cruise @ 5000 rpm is 90mph) but climb is better and more fun. I don't fly very far anyway.
There, I have just talked myself into liking my Kiev even more !
Dick

[Slyfox]

I'm glad quiet and smooth is for you. For me my Butt ugly IVO pushes my airplane at 120mph. When I had the 90 with the ultra light prop I was getting about 117mph. Oh well I guess speed isn't everything.