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HelicopterEngines Plugs Mufflers Fuel › Just got a PSP engine break in stand. What prop​size and where to find adapters?
03-21-2009 01:00 PM  8 years agoPost 1
Quicktoy

rrApprentice

Sarasota, FL USA

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Hey guys I just got my PSP Engine break in stand and the thing is definately high quality. To break in my plane engines will be a snap, but where can I find out what size prop to throw on a .32 a .50 and a .91 heli engine for break in? Also where can I get adapters to mount the props? I know a lot of you say break it in on the heli, but I have always been taught to break motors in on a stand, and I've recently left the world of planes for helis and have picked up an assortment of nitros.

thanks in advance

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03-21-2009 01:05 PM  8 years agoPost 2
BarracudaHockey

rrMaster

Jacksonville FL

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Dont bother, break them in in the helicopter.

You fly with Donnie and them at the dump down there?

Andy
AMA 77227
http://www.jaxrc.com

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03-21-2009 01:21 PM  8 years agoPost 3
BarracudaHockey

rrMaster

Jacksonville FL

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Sorry...by way of explanation. Most helicopter engines don't come with drive hubs and or woodruff keys. They also have short crankshafts for mounting clutches which makes mounting a prop, drive washer, prop washer and nut with enough threads to safely hold a prop a bit of a pain, that and tuning is completely different between the bench and heli.

Add to that, modern engines require only a modest break in time.

If you're still caught up in the whole bench break in, any prop in the middle of the range for sport flying would be fine, a 10x6 or 10x7 for a 50 and whatever they recommend for a similar size airplane engine for the rest.

It really is a waste of fuel that you could be using practicing hovering though

Andy
AMA 77227
http://www.jaxrc.com

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03-21-2009 02:41 PM  8 years agoPost 4
Quicktoy

rrApprentice

Sarasota, FL USA

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thanks for the responce. I don't know who donnie is. I got to watch bobby fly a week back and Ralph as well and OMG those two guys are unreal.
I've only been flying a month and a half but am getting it

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03-21-2009 05:39 PM  8 years agoPost 5
BarracudaHockey

rrMaster

Jacksonville FL

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Ah, you said you flew planes, I thought you might know Donnie and Jonathan, they fly planes there in Daytona.

Yea Bobby and Ralph are good buds of mine, listen to them and you will learn a lot.

Andy
AMA 77227
http://www.jaxrc.com

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03-21-2009 06:22 PM  8 years agoPost 6
Quicktoy

rrApprentice

Sarasota, FL USA

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both of them are absolutely incredible heli pilots and super nice guys. I havent met much of the plane guys yet, just a few. I hate flying the planes off the strip with the big bump in it LOL

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03-21-2009 10:22 PM  8 years agoPost 7
Raptor Pilot

rrVeteran

Northern Ireland U.K

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Sometimes i used to mount engines on a test stand and run them before flying them in a aeroplane but when i started flying helis i just run them in in the heli. It has always worked fine for me. The odd time i put a heli engine in a aeroplane but then i have to look for prop drivers and make a special nut on the lathe to reach down the center of the prop to hold on to the crank as heli engine cranks are shorter than aero engine cranks.

If it doesnt move and its meant too... use WD 40. If it moves and its not meant too...use duct tape!

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