What props are available for the 582?

[Av8r_Sed]

Jay,
You can buy a new set of blades from GSC. It might be your least expensive option, though I don't really know their current pricing.

If you have a 3:1 gear ratio on the C box 582, IVO only recommends the two blade medium. That's what I'm running (70") and it works well, but it's a pretty high inertia prop which resulted in extremely rough idle. I eventually installed a RK400 clutch to resolve this issue.

Other people go ahead and run the three blade ultralight and are happy with it. It's just not recommended by the manufacturer.

[beeryboats]

New wood blades are out of the question. IVO's website is a little vague. I was wondering the difference between the ultralight and medium props. I wonder why only two blades? And why was it so rough?

Here's my issue. The engine is going out for overhaul this weekend, I hope. And depending on what I hear from the shop will depend on what I need for a prop. If the engine is buildable, and the C gearbox is ok, I'll need a new (?) prop. But if the engine or gearbox or both is junk, I'll need a different prop. I assume the Bluehead takes a different prop??? I'm trying so hard to get this project back on schedule.

[avidflyer]

Hi Jay, I sent you a private message. If you have a gray head 582 now, the blue head 582 can use the same prop unless you change gearbox ratios from one to the other. Jim Chuk

[924549]

I run a 3 blade IVO 70" in-flight adj on my kitfox IV with a 582 grayhead and a C 3:1 gear box. I have used this prop since 1995. The only issue I have is needing to replace the motor that adjust the pitch every now and then.

[Dick B in KY]

Try Lockwood Aviation in Florida.

Dick B

[grdev]

Will a 60/40 prop two blade wooden Culver that came off a Rotax 447 work with the 582 on the Model 4?
Gil

[avidflyer]

It will bolt on, but it's not near enough prop for an engine that is producing 1/3 more HP than it was meant to work with. The 582 would over rev, and an over reving two stroke engine will have very high EGT temps. The high EGT temps will melt the pistons. Short answer would have been no. Jim Chuk

[grdev]

What are most people using for a prop on their 582 with B box?

[grdev]

I'm very close to Leaf Aircraft, Lyons WI this week so thought I would pick up a prop for my project. Any suggestions for a model 3 with model 4 wings?

[Av8r3400]

If I remember the story properly, in summary:

The two as opposed to three blades was recommended by Ivo due to their belief of a poor harmonic situation happening from the 3:1 gearbox in conjunction with the two cylinder engine. The ultralight would need three blades to efficiently use the hp of the engine, where the medium can handle it with only two.

Therefore Ivo says use a two blade medium, with a 582 and a 3:1 gearbox.


(Not to mention it costs more... )