bobf46

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Looking for pusher props for my F18 pusher 13" or 14"

combatpigg

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HI BOBF46, go to APCs' website. I don't have their inventory memorized, but they have a huge selection. Flaky phone service, I thought I was ordering from the janitor!

marwen1

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Combatpigg:

In reference to PUSHER PROPS - I read in a posting that you had suggested going to APC site. What is it and where is it?

Thanks
MARWEN

bob27s

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pusher props

http://www.apcprop.com/

Bobf..... I've not seen a pusher jet that used props that big before. What is it ? Are you building a G&P F-18?? What engine are you using?

LP1406P 14X6P is the only thing up there.

I could have sworn they had a 12x6 or 12x8 pusher. No 12" or 13" listed. Next size down is 11x7P

Zinger makes a vast assortment of pusher props - wood - they have provided pretty good performance for me in the past.....
http://www.zingerpropeller.com/Pusher.htm

Grish/Tornado and Graupner make a few, but not in the size you are looking for

Bob

bobf46

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Hi Bob Yes it is a G&P F18 with an OS91FX...I hope this 91FX runs better than my other one Im sure you know the history on these engines. I have not flown it yet due to a couple of problems. One problem I have with the airplane is prop clearance between the prop and the horz stab but I have a prop extension from FOX on the way to solve that. The other thing is my Springair retracts catching the doors on the way up...(not good) still not sure how to fix that. The doors are spring loaded open so I will try stronger springs first after that I dont know. Any suggestions will be appreciated and also tips on how good or bad this thing flys

bob27s

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I have not flown the G&P plane, but the one I saw looked nice.

Im not sure about the gear doors.. I'm not even sure the one I saw had gear doors on it.

What issues have you had with the OS91FX ?? The one I had to do muffler testing on ran very pretty well. Really came alive with both the turbo-jett and jett-stream mufflers installed. Both exhaust systems put a 13x6 APC well over 12K rpm. Idle was very good.

You may want to start with that 14x6P and clip the tips 1/2" or so. Even with the stock muffler, you want that engine up over 11.5K rpm for this type of application.

Is there any chance you can provide me a couple of photos of the engine installation on the F-18? Id like to get an idea of the space available back there. There are only a few photos on the web site, and none really show the business end.

Bob

Oosiksmith

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There is a guy who used to post some info on the G&P here on RCU and on his own website (http://www.frontiernet.net/~rcflyer1/). He had two of them and the had .60 Rossi's in each one turning an APC 11X7 (using an old Tatone pitts muffler instead of a tuned pipe) and said they got going pretty fast. Check out his site to see a few nice pics of his planes.