GSC to IVO on 582 2.62

[TY2068]

I like my 72" so far. Along with the RK-400 clutch it seems like a good set-up. Easy to dial in max static rpms (I have it set to 6,200-6,300). Plane leaps off the ground and cruises around 75.

[Av8r_Sed]

I've got the same setup except it's 70". I set my static to 6000 RPM and see 80 mph cruise and still have pretty good climb.

Remember to keep up with retorquing at 10 hour intervals if it's a new prop. Over time I've been able to stretch that out a bit.

[TY2068]

Hi Paul, I was wondering why you opt to have your prop set to get 6,000 max static. After installing my prop all indications (I read it on the internet) were that 6,200-6,300 static was the targeted rpm range to shoot for. Being you have a good amount of experience I'm thinking you have a good reason.

Again thanks for your advice and assistance when I was having problems with getting lower idle. I finally worked it out as a carb slide and cable issue. The engine key bump starts and idles around 2,000 once it warms and settles down a bit. I really like the IVO and RK clutch combo so far. Totally different machine vs. the 68" 3 blade GSC and no RK.

[Av8r_Sed]

I chose the lower static because I wanted the higher cruise more than maximum climb performance. Since all my flying is with field elevations below 1000 MSL climb is still more than sufficient.

[TY2068]

Hi Paul,

That sounds logical. I was thinking maybe you had yours set more course to limit peak rpms in the air at full throttle. Much of what I read said to shoot for 6,200 with this prop. I believe 6500 is the max allowable for a short period with 6,800 being redline revs. I may dial in a bit more pitch and try that out.

Thanks

[Olle1975]

I've got the same setup except it's 70". I set my static to 6000 RPM and see 80 mph cruise and still have pretty good climb.

Hi!

2 Blade or 3?

Ratio 2.62?

Which rpm do you call cruise?

Thanks!

Olaf

[TY2068]

If you read down the thread (and past posts) Olie you'll see Av8r_Sed is running a 70" IVO Ground Adjustable 2-Blade Medium and Hacman altitude compensator with a 3:1 C gearbox w/RK-400 clutch.

I'm running a 72" Ground Adjustable 2 Blade medium IVO on a 3:1 w/RK-400 clutch. I'm low hours but all seems very good so far. The clutch changed the whole dynamic of flying a 582 in my mind. I don't like my plane being vibrated and shaken to bits. Anyway "Cruise" in my mind is either loafing along at 60-65mph at @5,200-5,3000 seeing the sights (with door(s) open) or screaming across the countryside at 5,800+ doing somewhere around 80 IAS. Peak static RPM's are 6,000-6,200.

I was warned to stay out of the midrange RPM's (5,300-5,500) for prolonged periods. I forget exactly why but ok whatever. I heed warnings from the experienced first and eventually make up my own personal rules later

Don't think you can go wrong either the IVO medium 2-Blade IFA-GA or 3-Blade IVO UL GA-IFA. Do German rules allow IFA props in the experimental class ?