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lets see that "scale" exhaust, anybody!!

Old 03-19-2002, 03:35 AM
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Default lets see that "scale" exhaust, anybody!!

hey, got pics????
lets see what ya got, working scale or not!!!
1/5 Platt Mk5b (trop) 4500 tigger,DUAL exhaust (check out them 2 headers!!!)
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Old 03-19-2002, 04:09 AM
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Default lets see that "scale" exhaust, anybody!!

[IMG]http://[/IMG] Scale exhaust on my P-47
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Old 03-20-2002, 12:39 AM
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Default Shizzoff the Hizzook

Duff Waldron's Air Magic F-15 E's exhaust nozzles.
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Old 03-20-2002, 04:08 AM
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Default lets see that "scale" exhaust, anybody!!

Dean,
Strictly speaking, those are not the main exhaust ports. Those are the supercharger overpressure dump valves. The exhaust comes out that big hump on the bottom just forward of the tail wheel.

Now the big question, how the heck do I make it come out the back on the P47 I'm building - without burning up the plane. I think it would be kinda interesting.

Roger
Old 03-20-2002, 06:52 AM
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Default scale exhaust

I've done a bunch of p-51 scale exhaust work on our z p-51. I have a functioning scale exhaust on my z-corsair that works great. After I move to the new house in June I will get hot on it again.
I think it would be a major undertaking to do a scale exhaust for the p-47. the saving grace would be there is a lot of room and you could put a substantial muffler in with it. The gasser makes a terrific amount of heat in the exhaust so you would have to build a tunnel and insulate it. If you build the plane with a real scale exhaust in mind you will have a chance. It takes some excellent welding and brazing skill but it can be done.

bentwings
Old 03-20-2002, 01:17 PM
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Default lets see that "scale" exhaust, anybody!!

you might look at some of those big TOC-3D planes and giant pylon racers; they run pipes in the fuse. also the tubine people have to be able to work with the heat too. the heat wraps that real race cars use on headers is a posibility but they can work too well by reflecting back too much heat; the exaust pipe cant handle all the heat very long.
Old 03-20-2002, 04:42 PM
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Default AeroTech P-47 scale exhaust

AeroTech offeres a scale exhaust system for their P-47 and it also is supposed to fit the Yellow Aircraft version as well. It comes out right where the photo above shows. The have a version for a Brisson 4.2 and a G62 I think. Go to there web page "aerotechmodels.com" and check it out. I might use one on my Yellow P-47...... but those engine seem a bit overpowered for a Yellow P-47?
Old 03-20-2002, 11:11 PM
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Default scale exhaust

OK, Heres my contribution to the scale exhaust list
Evan Q.
Model is a Yellow Aircraft Spitfire and the first 2 exhaust outlets on the right side are functional.
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Old 03-20-2002, 11:15 PM
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Default another shot

Heres one more pic with the cowling on. The first 2 outlets are made from copper elbows purchased at home depot. The rest are the fiberglass ones that come with the kit.
Evan Q.
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Old 03-20-2002, 11:45 PM
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Default lets see that "scale" exhaust, anybody!!

190D (120 size)
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Old 03-20-2002, 11:47 PM
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Default lets see that "scale" exhaust, anybody!!

STERLING FOKKER D7, (wifes)
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Old 03-20-2002, 11:48 PM
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Default lets see that "scale" exhaust, anybody!!

1/5 190D9
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Old 03-20-2002, 11:52 PM
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Default lets see that "scale" exhaust, anybody!!

Al masters 56"ws Do335 exhaust
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Old 03-22-2002, 02:44 AM
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Default 1/7 mustang

Well, maybe not exactly scale, but different anyway. Brass tubing for the pipes and aluminum sheeting for the top covers.
--Derek

( more pix at www.bestweb.net/~lieber/flying/crazyhorse )
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Old 03-22-2002, 05:39 PM
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Default lets see that "scale" exhaust, anybody!!

Me likey!
Old 03-29-2002, 02:32 PM
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Default lets see that "scale" exhaust, anybody!!

THOMPSRC..................
Better have a closer look at your P-47 mechanics manual. That big hump on the belly of the plane is an exhaust for the turbosupercharger which is propelled by a PORTION of the ducted exhaust gasses. The main exhaust is vented at the location shown in the P-47 above by means of a collector ring. Also look at some of your old photos you'll see the burning effect of the hot gasses on metal and paint. Strictly speaking that is.
Old 03-31-2002, 10:42 AM
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Default lets see that "scale" exhaust, anybody!!

Here is one on my 83" Taylor Spitfire, the rear pipes left and right are the exhaust the others are for cooling...



fw190
Old 03-31-2002, 10:48 AM
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Default lets see that "scale" exhaust, anybody!!

Here is the insides... a bit of a squeze in there.



fw190
Old 03-31-2002, 10:51 AM
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Default lets see that "scale" exhaust, anybody!!

Sorry about the big pictures for the modem guys! but how do you make those pictures smaller and click to a bigger picture

Thanks

fw190
Old 04-01-2002, 06:32 AM
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Default Scale Exhaust

Whats the best way to bend the larger tues for exhaist without flattening?
Old 04-01-2002, 07:50 AM
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Default lets see that "scale" exhaust, anybody!!

go to McMaster-Carr on the net. They have a metal which melts just below the melting point of water. I think it's called Cerro metal. There are several varities. Just melt it in and bent the pipe with a spring bender. You will need a lot of muscle to bend a close radius. When you are done just heat the pipe and the Ferro runs out.

bentwings
Old 04-01-2002, 07:59 AM
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Default cerro

I found it but a 1 1/2 lb ingot 199 bucks wow!! i might need to try to find a machine shop to bend would prob be cheaper but i appreciate the info.
Old 04-02-2002, 03:19 PM
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Default lets see that "scale" exhaust, anybody!!

proflooney,
I haven't reviewed the catalog page recently but I just checked. If you look toward the higher melting points.... closer to water boiling or just a little higher there are some much less expensive. Cerro-bismuth is the name. There are many alloys of this material. so view the catalog page.
Sorry for the confusion. That what happens when you trust old memories.
Macmaster-carr has about everthing you can imagine and in quantities like one or two that you normally cannot get. Sometimes at a little more cost than you would expect but at least you don't have but a life time supply.
The company I work for made some equipment for hydroforming copper plumbing connections. elbows, tees and sleeves. Pretty interesting machines but way beyond what we can build for models.


PS I'm not an e-marketer for M-C

bentwings
Old 04-02-2002, 10:30 PM
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thanks I will look better I also contacted a couple local places that said they could bend for me and prob not even charge me. I would also love to try and make a set for the Ziroli P-40 with the flat style exhaust
Old 04-03-2002, 05:44 AM
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Default lets see that "scale" exhaust, anybody!!

golly, now the minds they are a meeting, huh?
'ol Bentwings is flat bad folks, he's the only one I know of who has come up with a rf noise REDUCTION addition to go with his exhaust. Pay heed, this thread is going places.
FOR THE REST OF YOU........
If you got it, want it, want to know more,
PUT IT HERE!!!!!
The only "shoddy" exhaust system I know of is made from plastic and doesn't blow smoke.........................
THANKS RCU and to all that have posted so far....KUDOS!!!!!!!
Reggie
and I found the right button (this time)

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