IVO InFlight Adjustable

[Norm]

The electric motor just goes in or out. It does not care which way the blades are turning. Same as the adjustable screw. I am lucky in that this is an early 912. I understand that if this were a later 912 the prop hub would not fit. The plane is still a long ways from flying as I am doing a rebuild but getting stuff ready including switching from a 582 to the 912. Thus the new prop but want to use the inflight adjustable when ready.
Norm

[wannafly]

I have the IVO Medium. Have about 300 hrs on and it works great. But I am thinking of trimming it back a bit. For those who have trimmed there prop, what did you use to trim it? I'm still at 72" but is just a bit much. I think I will start at 1/2 inch off.

[Norm]

From the IVO website it says to use a hacksaw.
• If you wish to increase top speed or decrease cruise RPM, switch to a 2-blade prop or
cut the 3-blade prop to smaller diameter using a hack saw. As long as you cut the same
length piece from each blade, the prop will remain in balance.


I would be careful about trimming the ends if you are getting good rpm cause I know you want to do more sandbar landings. A longer prop usually gives more pull and better climb.

[kitfox2009]

Hi guys
I have over 400 hours now on a 70 inch IVO IFA Ultralight prop with a 912 UL on my Vixen.
Have no problem getting full RPM on takeoff and could also "overload the engine" with excessive pitch on cruise if you wanted to. I think it is a good idea to have a manifold pressure gauge with the in flight props.
I would be careful trimming the tips with the chance of unbalancing the prop.
They are pretty smooth. Be a shame to bugger it up.
Happy Thanksgiving.
Don

[Norm]

Hi Don
Had a good Turkey today. I hope your Thanksgiving was great.
What RPM do you get on takeoff. It looks like you have the high pitch prop looking at your photo albums so I am curious.
Norm

[kitfox2009]

Hi Norm
Not sure about about the pitch. The model is a UR370+PE KFOX /912/80.
I told IVO the aircraft and engine type and this is what was recommended.
I get 5800 on takeoff and start putting a bit of pitch in through climb out to maintain 5500 or so. I usually cruise at 52 to 5400 if I want to get somewhere . Hardly ever run it under 5000 unless in the circuit.
When are you in the air?
Cheers
Don

[Norm]

I hope I can get those numbers out of my Fox. It will be a long time before I get my Model IV in the air, but I fly the Buzzard weekly. Probably why the fox is taking a long time to get going. Did you make it to this way this year?
Norm

[raffdhc6]

Hi Norm
Not sure about about the pitch. The model is a UR370+PE KFOX /912/80.
I told IVO the aircraft and engine type and this is what was recommended.
I get 5800 on takeoff and start putting a bit of pitch in through climb out to maintain 5500 or so. I usually cruise at 52 to 5400 if I want to get somewhere . Hardly ever run it under 5000 unless in the circuit.
When are you in the air?
Cheers
Don

Hi Don, I own a Kitfox 5 outback rotax 912 ul with a CSG 68 prop. I have 2 Ivoprop light - 1 is standard and the other Patriot (thinner) 1 blades is 34 iches. What is the blade you are using? What is your cruise speed at 75% power. Cheers Raff

[kitfox2009]

From the IVO website it says to use a hacksaw.
• If you wish to increase top speed or decrease cruise RPM, switch to a 2-blade prop or
cut the 3-blade prop to smaller diameter using a hack saw. As long as you cut the same
length piece from each blade, the prop will remain in balance.


I would be careful about trimming the ends if you are getting good rpm cause I know you want to do more sandbar landings. A longer prop usually gives more pull and better climb.

Happy New Year guys
I know this is an OLD thread but I have a couple of questions regarding my 70 inch IVO IFA Ultra Light prop. I have run this now for over 700 hours on a Rotax 912 UL (80HP). over this period I have replaced the pitch motor once, the spool (stripped threads) twice, The carriers and pinion a number of times. Anyway the prop works very well, smooth and allows for better engine performance and fuel economy.
BUT, Today I removed the IFA hub and installed my Ground Adjust plate for use while I am waiting for another "lead screw assembly" due to stripped threads on the "spool". I never noticed this before but in order to achieve fine pitch on the ground adjuster there is quite a bit of resistance required on the adjusting shaft!

I am wondering if this excessive force required is what is prematurely damaging these IFA parts. The prop was purchased from IVO 9 years ago on their recommendation. It is possible that I have the "high pitch blades" The model says UR 370+PE. Not sure what that means.
I know is is very easy to lug the engine with very little adjustment in flight.

I am thinking of cutting the prop down in small increments. Do any of you folks have experience doing this? Do not want to mess up the balance. I suppose the other option is to purchase new blades low pitch.

I realize many of you guys have gone on to bigger and better things (airmaster,etc) but my next birthday will match my HP so I would prefer to just fly a bit more without beating up the family`s inheritance too badly.

Cheers and HAPPY NEW YEAR to the KF forum folks
Don Hudgeon

[kitfox2009]

Happy New Year guys
I know this is an OLD thread but I have a couple of questions regarding my 70 inch IVO IFA Ultra Light prop. I have run this now for over 700 hours on a Rotax 912 UL (80HP). over this period I have replaced the pitch motor once, the spool (stripped threads) twice, The carriers and pinion a number of times. Anyway the prop works very well, smooth and allows for better engine performance and fuel economy.
BUT, Today I removed the IFA hub and installed my Ground Adjust plate for use while I am waiting for another "lead screw assembly" due to stripped threads on the "spool". I never noticed this before but in order to achieve fine pitch on the ground adjuster there is quite a bit of resistance required on the adjusting shaft!

I am wondering if this excessive force required is what is prematurely damaging these IFA parts. The prop was purchased from IVO 9 years ago on their recommendation. It is possible that I have the "high pitch blades" The model says UR 370+PE. Not sure what that means.
I know is is very easy to lug the engine with very little adjustment in flight.

I am thinking of cutting the prop down in small increments. Do any of you folks have experience doing this? Do not want to mess up the balance. I suppose the other option is to purchase new blades low pitch.

I realize many of you guys have gone on to bigger and better things (airmaster,etc) but my next birthday will match my HP so I would prefer to just fly a bit more without beating up the family`s inheritance too badly.

Cheers and HAPPY NEW YEAR to the KF forum folks
Don Hudgeon

Has or is anyone running a 68 or 69 inch with the high pitch blades? What are the results? I have an inquiry into IVO as well about cutting down these blades so the adjuster does not have to max out for fine pitch. The breaker has never blown!