Picked up a new Hangar 9 P-40 at Perry last weekend. I am planning to use an OS 91fx. I know some folks are powering this aircraft with a 2 stroke. What setup is everyone using to keep the plug from flooding out while inverted?

Eh- that plane won't fly with anything less than a 1.60. It's a real brick. You need to just pack it up an throw it out the back door, and I'm sure someone will be kind enough to come by and remove that unsightly pile of balsa from your property.

It's probably radioactive too.

And (only in California), if eaten, will cause cancer!!!!

Well, in GA we just call that indigestion!

What the hell are you talking about, the P40 is a great flying airplane.. thanks for your input in this thread, you really helped answer the question.

I use an inverted .61 in mine, and I run an OS F plug. It does pretty well, the warmer plug limits the flame outs. I also run a Pitts muffler.

Foofinator- Sky Dart 1 is my father. All in good humor.
-Steve

I am actually in need of the same info. I aquired a H9 Mustang 1.50 at the same swap meet, and I plan on running a spare OS 1.60 FX inverted, and I would like a recomendation on an onboard glow ignitor. I know Ram makes one, but i don't know anything about it. Anyone ever used one?

I've been running inverted enya 60's and Webra 61's in various engines for a long time. I've always used a medium plug with an idle bar. I've never had any problems as long as I had them adjusted right.
Foofinator, what engine/muffler combination do you use? I need to get a pitts style muffler for my Webra on a Sig Skybolt, but I need to be below 89db. Any chance you know what yours puts out?
John

Ah sorry duck, I feel like a tool now. [&:]

ANYWAY ..

I run an Evo .61 with a slimline pitts. I cut the pipes really short and it is LOUD. The one problem I had was not enough backpressure, requiring a rich tune, which led to dousing the plug. I clamped the pipes with a standard clamp and reduced the exit area. This helped a little, but still, the inverted .61 isn't exactly reliable all the time.

Still, it's loud.

http://www.zippyvideos.com/282957659...e2/*foofinator


There's a clip incase you're curious.

The Saito100 flys the Hanger9 series warbirds very well and can be run inverted all day long without the fuel and headlocking problems you'll be getting with a 2 stroke.

Lomcevak Duck ,,, if you end up getting better retracts for your new 150 Mustang,,,, could I buy your old stock ones ?
I have a Spitfire that is right on the weight limit between mechanicals and air retracts (oleos) and the 150 H9's work for a while till they wear out too. They are too weak for your 150 Mustang anyway.

Aout your comments on the P-40. I saw one flying with an O.S. 1.20 III and it could handle it very well ( a little bit over-powered for my taste). I think a good 61 like the O.S. will do just right, that was the opinion of those who saw it flying.

Foofinator: no harm done
Sturtz: I am planning on trying to get the mechs. to work (I know I've read they are terrible, but I'm going to see if I can make them work anyways) Otherwise I would send them to you.

See if there is a way that you can lower the fuel tank mounting so that the centerline of the tank is level with the inverted carb. That will eliminate the flooding problems.

About the retracts. I saw them in action and they work great. The was a landing that I couldn't call a soft one and they took it O.K. Also I have read that they are indeed very reliable. I'been following everything on the P-40 since it came out in R.C. universe and have found that some comments (not all) on this aircraft are not being very objective. Anyway... keep reading and select those that you can confirm with what you have in front of you.. the model.

Are you talking about the P-51 1.50 or the P-40 .60 ? The P-51 L Duck has is a big bird. Around 15LBs I believe. The P-40 weighs alot less. I use those P-51 mech retracts on my 90 sized Spitfire and they are wobbly at best. The 3/16 wire does help out and is a ton better than what I first used. There is a thread in the Warbird section on it.
Thanks anyway L Duck,,, and keep us informed on how it goes. Good luck on the engine search Sky Dart.

I'm talking about the H-9 P-40. I have one of my own (still in the box) and have been comparing the reports I get from this forum with what I have. To be honest, some reports, to me, sound as ther esult of misjudment or pushing the airframe beyond its capabilities (i.e. extreme overpowering engines) . I have a set of retracts (Century Jet) I bought for a
TF P-40 that I have (still in the box) which I was planning to install in the H-9 ( they are amaizingly similar in size ) but in favor of what I have read, I decided to keep it simple.This retracts will do their job well unless you love "carrier landings".

I have an H-9 P-51 with a Super Tigre G-90 inverted and have never had flooding problems, just be patient and set your needles to prevent that issue. The G-90 is more than enough power for this bird, should be the same for the P-40.

PCG

Hello, just got a hanger 9 spitfire and hope she flys as good as my fw-190
it has a sp 2300 and rocks! I also picked up a st g-90
and i think thats what i will run?
what prop are you using??? in your g-90???

thanks ken

I have an inverted OS 91fx in a TF FW-190. It flooded out at idle. I installed a C-Tronics onboard glow system. Install is easy. Setup is simple. Its been a year now and the glow system has been very reliable. Flooding has not been a problem since the glow system was installed.

Brian

What pipe are you using on the st G-90
and prop??

thanks

Been flying the P-40 with a Saito 100, prop, APC 15x6, for a year now. Have to use 1/2 throttle. It can do a full pattern loop with no problem. Used a Saito 90 degree adapter and a straight flex pipe. No additional holes required in cowling for exhaust. No flooding problem unless I drag the plan back nose down from the runway. Put servos inside and no nose weight required. Next to best flying airplane I have. My 1/4 scale spacewalker is number #1.
Bill PTC

Here is another Hangar-9 P-40 question. Is someone finally manufacturing a spinner for this plane? I have been out of the thread for a while.

I have a H-9 P-40 powered by a OS91fs plenty of power for this plane if you float it in easy the retracts are good enough they are weak for sure,and my struts have bent a bit after a off runway landing but they are servicable removed and bent the strut back and it's fine.
as for a fairly cheap spinner this is what I found for 20$ http://www.racingdevil.com/product.php?category_id=105 they look pretty good for the price I had a parabolic(P-51)spinner and it looked off, check these out here's a pic of mine with the new spinner

Thanks for your prompt response! Your spinner looks pretty similar to an actual P-40 spinner. I'll check it at the web page you gave me.
Again, thanks.