Stalkmoe

Jeff-

Was going to surprise you...look for it back to life very soon[8D] after the big OV-10 Bronco

Tim

dbateman

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Is there a way to get 2 blade performance out of a three blade set up? I am willing to adjust motor size. I flew a couple 60 size fighters on a YS-110 and they hauled butt. I know it won't be a scale prop size but i need the speed and the scale appearance. Just me....

Stalkmoe

dbateman-

I think your up against the laws of physics, so the straight answer is simply no. (A one blade prop would be the most efficient.) That said, you can add more power to a 3 blade prop and get your desired effect of scale look and no loss of performance (thrust). That's tricky, but we've done it on these war-bird models. Jeff and I have used 3 blade props in a 16x10 size/pitch, powered with an Eflite Power60 brush-less motor on a 6-cell, 5000mAh LIPO pack with a Castle 80amp ESC and it hauled a 8-10 pound Hangar9, Top Flight or SIG .60 size warbird around quite nicely. Some of our Scale Master friends have even tried 4-blade props, but many fly two blade 16x12 props and switch to a static prop for display and judging. After that motor has spooled up and the prop is spinning, blade count is harder to tell, but performance sure isn't. With the electric conversion you've outlined, at least you'll be able to swing a larger diameter prop then some of those funny looking glow/gas props.

stalkmoe

dbateman

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Wondering if i have to go to the power 90 to swing a larger 3 blade at a pitch i will like.

Chad Veich

My Feedback: (60)

The P-51B used a four bladed prop so three blades is still not scale. Better in my opinion to run a larger diameter 2 blader which looks more scale in flight anyway due to the larger prop arc. That's just my .02 cents of course.

dbateman

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Some early models ha d a three blade prop. There is a combo that will fly a 60 size warbird like it had a YS 110 in it. I just have to find it.

Chad Veich

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Only the Allison powered versions, i.e., the P-51, P-51A, A-36 had the three bladed props. The B/C model Mustangs (such as is the Sig ARF) have the Merlin engine up front and were only operated with a four bladed prop. The noses are substantially different between the two engines. Just FYI of course as none of this prevents you from running a 3-blader on your Mustang if that is what you prefer.

Allison engine P-51A


Merlin engine P-51B/C

Chad Veich

My Feedback: (60)

double post

jmohn

You get some much more performance with the two-blade using the Power 60. I wouldn't use the Power 90 as it adds too much weight for this plane's frame. You can get the same performance with the 60 if you use a two blade. If you want scale then just swap the prop when you land for static display.



Jeff

Stalkmoe

Jeff is correct, but I will tell you my experience with a Power90. I read an article sometime ago online from RCGuys... I think. They had "hopped" up the hangar9 .60 size Corsair with the Power90, an 85HV ESC from Castle powered by 8 cells (Two 4cell Thunder power 5000mAh packs wired up in series). You can Google it and still find the article. I built up the same configuration in my Hangar9 Corsair, and in fact Jeff maidened it for me. It does fly faster (it has a 3 bladed prop 16x10), and also weighs more. Of course each flight takes two batteries- not a huge deal really. I still have it, but seem to fly my standard .60 size Hangar9 war-birds more often. It is a viable route to take in your quest for scale prop and more performance. Good luck, let us know how it goes.

Stalkmoe

Thanks for those great picts Chad- hadn't seen an early A or B model until last years Reno Air races- Polar Bear flew in as a static display- sure enough...3 blade prop, so that was the Allison engine then?

Chad Veich

My Feedback: (60)

My pleasure Stalkmoe. "Polar Bear" does indeed have an Allison engine up front. That particular P-51A was recovered from a mountain side by "Moon Spillers" and restored way back in the early 80's if I remember correctly. It is something of an oddity among Mustangs in that it contains many P-51D components which are quite different from the original P-51A parts so it does not really accurately represent any Mustang ever built by North American. It is still beautiful to look at and most people don't know, or care, that it is not original.

dbateman

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I like the ones with the humpback canopy, similar to the spitfire.

800mZero

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could always put a power 110 in it on 8sworks great for me.

dbateman

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800mZero, more information on your setup please. I have been considering the 110.
Is that what's in the Mustang shown?
Doug

800mZero

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hanger 9 60 sized blue nose

power 110
Ice 100 ESC
2 4s 4000mah lipos flightmax
APC 15.5X12X4 prop

1950 watts WOT
Between 60-70 amps WOT

She ways twelve pounds and hauls booty at half throttle-I use 3/4 for high speed passes.

And yep thats the mustang shown.

dbateman

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That's what i'm talking about. So it does well on the four blade? And i should do even better with three.....I like the yellow, blue always bugged me...

800mZero

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it does well on 4 blades! it has a larger amnmount of p factor obviously so takes offs and landings are fun but she really scoots with the four blade. On the sig where you have the extra wing spani would run 5000 mah batteries-I had to go 4000 to keep the weight down. which in long run gives me about a 6 minute flight.

And thank you on the paint scheme, she is painted as my uncles plane was that he was shot down in 3 days before the ened of the war.