stunthanger.com
Engine basics => Engine set up tips => Topic started by: Avaiojet on October 10, 2014, 06:07:38 AM
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I searched and found a bit of info on the Fox .40 Stunt Delux, but I'd like a bit more info before I consider it for my recent project.
Anyone using one regularly?
Happy with it?
Pros & Cons.
Charles
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Have lou Wollard to set the timing for you
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If it's the one with the square hole for the venturi it's a vacuum leaking nightmare. The engine needs to be soap bubble tested and seal the leaks before installing it in a plane.
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If it's the one with the square hole for the venturi it's a vacuum leaking nightmare. The engine needs to be soap bubble tested and seal the leaks before installing it in a plane.
Perry,
Here's the engine.
I don't like that Dracula back either. Fox always had this thing for casting, even their carb flange.
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I have one from Lew Woolard that was installed in a Cardinal. It is a great running engine. Plenty of power and a nice 4-2 transition. It's was hard to screw up the run.
Don't expect a new one to run out of the box that way.
Mine doesn't leak and it has the stock gasket.
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The LA.46 is a much better engine.
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The LA.46 is a much better engine.
I don't have a Fox, but the LA 46 is certainly a good solid trouble-free engine -- it would be hard to find something better for a beginner pilot.
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A better motor than that is the super stunt 40. I have 2 of them and they run like super tiger. My buddy has one as well ,his pulled a vector through the pattern with no problem. If Wollard is still active he can tune one for you.
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Lew Woolard is still active. It's hard to get a hold of him at times though.
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A better motor than that is the super stunt 40. I have 2 of them and they run like super tiger. My buddy has one as well ,his pulled a vector through the pattern with no problem. If Wollard is still active he can tune one for you.
John,
What is a super stunt .40?
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Are you planning on getting the engine new from Fox? Have you tried calling Fox to see if they even still have one in stock? The firm rumor at this point is that Fox is out of the model airplane engine business, at least for the time being.
In stock form, most people here probably would not care for the Fox 40 delux on a CL stunt or sport model. That's why there are so many recommendations to have a specialist like Lew Woolard rework the engine. In general, it's still going to be a Fox engine, so expect slightly less refined machine work and finishing, and a longer break-in period before the engine comes into it's own. I have one of Lew's Silver Fox 40s, a plain bearing lapped steel piston version, it's a good engine and I've used it a bit, but it's still not really broken in. I would say that if you have to ask, you'd probably be happier with an OS engine. There's a reason the LA 46 is so popular and the Fox 40 is, well, not so much...
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I don't know about old stock at Fox but they are out of the engine business. They don't carry castor anymore either.
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One of the bad things about the Fox is the bench running time required to get it ready to fly. Fuel is kinda $$$ these days, if you haven't noticed. The other problem is whether you have a place to bench run engines without any noise complaints.
The nice thing about the .46LA is that you can generally run one tankful on the ground and fly it for tank #2. If it doesn't hold a steady setting on the 1st round, then reconsider...but I've run 3 NIB and flown the #2 run, one .46LA and two .25LA. Zero problems. After about 10 runs, the fuel consumption should be pretty well stabalized. This is not going to happen with the Fox, for sure. D>K Steve
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The .40 Deluxe is ABC so break in is not that extensive.
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A Fox ABC is not an OS ABC. Fox's ABC piston and liner sets need almost as much work as their lapped steel sets. I spent two days in the shop recently, cleaning up a Fox Mfg ABC piston and liner set for a Fox .35 stunt. Out of the package it wouldn't even fit in an NOS Fox case, there were burs and flash on all the edges, and the wristpin clips weren't seated in their grooves. I like Fox engines as much or more than the next guy, but I try to be realistic. They're great if you want to tinker, but they're not the best in anything. You have to have a good reason to use one, like brand loyalty or nostalgia.
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I searched and found a bit of info on the Fox .40 Stunt Delux, but I'd like a bit more info before I consider it for my recent project.
Charles
Depends what your next project is. ;D
If it is a delta Canard Triplane with a mid mounted pusher engine then no one will question it I am sure!
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Depends what your next project is. ;D
If it is a delta Canard Triplane with a mid mounted pusher engine then no one will question it I am sure!
Chris,
Close buy no cigar. LL~
Just your typical 54" stunter with a single pushrod off the bellcrank and the use of lucky boxes. Should be called "Magic Boxes."
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I agree with Andrew! Back in the old days I used to tell Duke that he made the best engine kits on the market as a joke, but it was actually pretty true.....
When running Fox engines in combat I would get several sets of parts at a time. Then fit and lap to my liking. With the right work they made great engines,
but it did take time...............RW
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I set the model up with a OS LA 46.
Already done.
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Good job. It really likes the APC 11.5 x 4 prop sometimes the 12.25 x 3.75.
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Good job. It really likes the APC 11.5 x 4 prop sometimes the 12.25 x 3.75.
Thanks,
I would like to run a wide three blade.