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Favorite G62 props

Old 10-17-2011, 05:10 PM
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vertical grimmace
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Default Favorite G62 props

What are you guys favorite props for your G62? I am going to have mine installed in a fast WW2 warbird. I was thinking of starting with a Xoar 22-10. That is my favorite prop for my DL 50.
Old 10-17-2011, 05:56 PM
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Default RE: Favorite G62 props

That would be a good prop to start with for the G62 also. Just remember to keep the revs up on the Zenoah.
Old 10-17-2011, 05:56 PM
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Default RE: Favorite G62 props

A Mezjlik 22X12 threeblade is on the nose of my Stuka, it luvs it.
Old 10-17-2011, 06:18 PM
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Antique
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Default RE: Favorite G62 props

APC special USRA AT6 race prop...9000 rpm in the air with an open header.....Check with Jeff on the usrainfo.org website..BEST for speed on a 26 lb AT6...PROVEN by years of racing...
You might have to go to the racing forum and post there...
Old 10-17-2011, 07:51 PM
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vertical grimmace
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Default RE: Favorite G62 props

Thanks guys. I really want to stick with 2 blade and not have the price be crazy high. This will be a competition aircraft but not a racer, so speed is not the main objective.
I just wanted to say it would not be a big WW1 model or something of that sort. What is the sweet spot on RPM for these engines?
Old 10-18-2011, 07:13 AM
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Antique
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Default RE: Favorite G62 props

If $25 for the best prop is too high, you're in the wrong hobby...
8000 rpm is the sweet spot...
a 23-8 works well..
Anyone who has seen our AT6 giant scale race planes knows the performance does not suffer using the race prop....7500 on the ground, just about what Zenoah says in the INSTRUCTIONS that come with the engine... The stock muffler is an rpm killer..
Old 10-18-2011, 07:22 AM
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Default RE: Favorite G62 props

Try a Zinger 20X8X14 prop. relatively cheap, my g-62 in my 47 loves it. I know youv'e seen it fly, also this year at the Warbirds Over The Rockies Vick was flying a Sea Fury with a G-62 and a Zinger prop. The plane was pretty darn fast! What WWII plane are you building? In Pueblo we find that the 22X10 doesn't allow the G-62 to
rev high enough in the air.
If your set on Zoar props try a 20X10 instead or something in a 21X10, like a Bolly wood. My G-62 turns 7200 on the ground and unloads quite a bit in the air. ( for everyone else, both of us fly in Colorado at around 5,000 feet. You need smaller diameter or less pitch to get the rpms up into the G-62's happy spot.)

Larry
Birds of Prey
Pueblo, Colorado
Old 10-18-2011, 08:56 AM
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Default RE: Favorite G62 props

+1 on the Zinger 20 X 8-14
used one on a G62 powered Byron Mustang for years
Old 10-18-2011, 10:21 AM
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Default RE: Favorite G62 props

My G62 loves a Xoar 23x8.
Old 10-18-2011, 05:10 PM
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vertical grimmace
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Default RE: Favorite G62 props

Larry, I am going great guns on a TA 152 in 114", 1/5th scale. I am hoping to have it ready for next summer and our Scale masters qualifier! I will have to be convinced on the Zinger as large props go, my experience has been they were only good for stirring paint. I will check one out. I have really settled on the xoars, but that is why I am asking, as I believe most engines have a favorite prop.
I bought my engine used, so I did not get a manual. I suppose I can look it up in their website. I am kind of under the impression there is no reason to buy a new Zenoah.
Old 10-19-2011, 05:00 AM
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Default RE: Favorite G62 props

Looking forward to seeing it. Remember, war birds are not IMAC or 3D planes. Most responses will be from those flying relatively lightly loaded aerobatic planes. Sometimes war birds respond better to different solutions. Example, I have a TF Corsair with a Sachs 4.2 on it. The plane just loves a TF 22X6X12 prop. I go with what works and don't worry if it isn't the latest and greatest current choice. Not to say Zoar and Menz aren't good choices, just that sometimes trying something that everyone else poo poos isn't a bad idea.
As to Zinger and TF props, they load an engine less than a Zoar or Menz so go up one size. Say a 22X10 zinger instead of a 22X8 menz. I get a lot of pleasure when I blow by someone with one of those paint stirrers on my plane! Flying at 5000 feet like we do means we need a somewhat different approach to prop choice.

Larry
Old 10-19-2011, 06:15 AM
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Default RE: Favorite G62 props

The biggest problem with Zinger props is their horrible quality control. You might get a good one then the next one will have one blade that looks good then the other blade has something like a 1/8" thick square trailing edge or a square LE. A prop that is clearly not usable without complete rework. Wood selection often matches the poor finish work. I won't even discuss the complete lack of balance. Even Top-Flite props are more consistent than Zingers. I would not even consider either brand unless I could hand select them at a local hobby shop. It is so much easier to select a proper size Xoar, or any one of a dozen or more similar props as they are at least consistent in quality and performance.

I agree though, props should be selected for the application rather than just following the masses. So many people just recommend props and engines based on their experiences with light weight, aerobatic planes. A heavy warbird is a whole different animal!
Old 10-19-2011, 06:27 AM
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Default RE: Favorite G62 props

Our T6s weigh at least 26 lbs...
Old 10-19-2011, 06:42 AM
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Default RE: Favorite G62 props

ORIGINAL: Antique

Our T6s weigh at least 26 lbs...
I flew a Ziroli T-6 for years and it weighed well over 30 pounds. It flew with a G-62 for most of its life then later on it had (still has) a FPE 4.2. I no longer remember the prop size used on the G-62 (CRS disease ya know) but the 4.2 uses a 24-10 with excellent overall performance. The performance differences between the engines was minimal. It is no racer by any means but performance is good throughout the whole flight envelope.

Back to the OP's request, I'd use the prop I have on hand for starters then adjust the size from there as a compromise to keep the engine and airframe happy.
Old 10-19-2011, 10:36 AM
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Default RE: Favorite G62 props

From experience the 23x8 works great. I found on 2 airframes this to be true. Ziroli Stuka and Meister ME 109. Both planes pulled well and I could do a descent loop. Antique is right, from trying different brands and sizes the 23x8 worked the best. On a TA 152 it should have it zooming. Especially if the engine is already broken in and not damaged. What some folks fail to mention is whether their engine is new or well broken with at least 5 gallons through it. It makes a big difference. A new G62 will not out perform a good broken in one.
Stock for stock that is. Just make sure the prop is well balanced. As for Zingers, you do have to take a careful look at which one you use. Some are very bad.
Old 10-20-2011, 06:32 AM
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SitNFly
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Default RE: Favorite G62 props

NX 22x10 has worked well for me on an 18# Extra. Not a speed prop though........
Old 10-20-2011, 07:32 AM
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Default RE: Favorite G62 props

Zinger 22-10s were doing about 95 mph on our T6s in 1992
Current T6s are going about 120 mph with the exact same planes and engines using the APC T6 race props..No other changes...
We pretty much know what works on G62s after racing for 19 years..
Old 10-20-2011, 10:09 AM
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Default RE: Favorite G62 props


ORIGINAL: Antique

Zinger 22-10s were doing about 95 mph on our T6s in 1992
Current T6s are going about 120 mph with the exact same planes and engines using the APC T6 race props..No other changes...
We pretty much know what works on G62s after racing for 19 years..
But nothing was ever said by the OP about this being a racing application. Racing props and sport / warbird props are completely different animals.
Old 10-20-2011, 10:13 AM
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vertical grimmace
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Default RE: Favorite G62 props


ORIGINAL: Antique

Zinger 22-10s were doing about 95 mph on our T6s in 1992
Current T6s are going about 120 mph with the exact same planes and engines using the APC T6 race props..No other changes...
We pretty much know what works on G62s after racing for 19 years..
Yep, competition generally sorts things out rather quickly.
Old 10-20-2011, 10:17 AM
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vertical grimmace
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Default RE: Favorite G62 props

Not seeing this racing prop on the APC website. Is it one of these? http://www.apcprop.com/SearchResults.asp?Cat=13
Old 10-20-2011, 10:20 AM
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Default RE: Favorite G62 props

Our big heavy fat T6s will do aerobatics just fine...No hovering, but any BIG loops. stall turns, any IMAA maneuver...With the race prop...Our rules prohibit aerobatics, but after the finish line the pilots often go straight up almost out of site waiting for a turn to land...And they have done aerobatics at Castle AFB at the IMAA meets...
If you know Randy Hill there in Iowa, ask him, he's been there, done that
Old 10-20-2011, 03:03 PM
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Default RE: Favorite G62 props

Off the USRA website....

PROPS
Both injection molded APC and carbon racing props are available. USRA is selling the spec T-6 and F-1GT props.
Sources for carbon props
Fred Sattler
Chuck Winter
Supercool
Old 10-21-2011, 04:22 AM
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Default RE: Favorite G62 props

My G62 loved the Top Flite Power Point 22x6-10 props
Old 12-13-2011, 11:39 AM
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Default RE: Favorite G62 props

I like the Vess 22B on mine.....7850 through a Bennett side dump!
Old 12-13-2011, 02:01 PM
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Default RE: Favorite G62 props

I have the Vess 22B on mine also.

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