'Airy:
I saw the pictures of your Plane. You have an angle cut on the end of the stack but there isn't any thing to create some back pressure. the stacks I mentioned, had a little curve(bend) in the stack itself at the end and then it was cut off.
Mike Kelly
Fairchild Club'
Re: Straight stacks.
-
Airy Millet
- Posts: 48
- Joined: Tue Feb 17, 2009 3:02 pm
Re: Straight stacks.
'Yes! ok! understood!
but I think that with the low revs speed of aero engines like this it is not so important to have such good "back pressure"...
It is very important on sports engines reving faster, or on usual cars because of the revs variations we are asking when driving...
Of course it could be bent, it should be better...
...but the most important when building exhaust systems is the length, in order to get this famous backwave!
But after 20years (or more) with such exhaust we never encountered any valve problems....
...only piston rings problems!
Airy
To: fairchildclub@yahoogroups.com
From: hotfoot49@hotmail.com
Date: Tue, 30 Nov 2010 21:10:42 +0000
Subject: [fairchildclub] Straight stacks.
Airy:
I saw the pictures of your Plane. You have an angle cut on the end of the stack but there isn't any thing to create some back pressure. the stacks I mentioned, had a little curve(bend) in the stack itself at the end and then it was cut off.
Mike Kelly
Fairchild Club
[Non-text portions of this message have been removed]'
but I think that with the low revs speed of aero engines like this it is not so important to have such good "back pressure"...
It is very important on sports engines reving faster, or on usual cars because of the revs variations we are asking when driving...
Of course it could be bent, it should be better...
...but the most important when building exhaust systems is the length, in order to get this famous backwave!
But after 20years (or more) with such exhaust we never encountered any valve problems....
...only piston rings problems!
Airy
To: fairchildclub@yahoogroups.com
From: hotfoot49@hotmail.com
Date: Tue, 30 Nov 2010 21:10:42 +0000
Subject: [fairchildclub] Straight stacks.
Airy:
I saw the pictures of your Plane. You have an angle cut on the end of the stack but there isn't any thing to create some back pressure. the stacks I mentioned, had a little curve(bend) in the stack itself at the end and then it was cut off.
Mike Kelly
Fairchild Club
[Non-text portions of this message have been removed]'
-
John Ellis
- Posts: 144
- Joined: Sat Feb 17, 2001 10:37 pm
Re: Straight stacks.
'Hi Mike,
Dawley Aviation of Burlington Wisconsin made up a set of 3 into 1 probably
15 years ago for me.. They are still in great condition and have never
caused a problem.. I am not aware of a field
approval for the single pipes, but there may be one out there.
John
Dawley Aviation of Burlington Wisconsin made up a set of 3 into 1 probably
15 years ago for me.. They are still in great condition and have never
caused a problem.. I am not aware of a field
approval for the single pipes, but there may be one out there.
John
'----- Original Message -----
From: "hotfoot49"
To:
Sent: Tuesday, November 30, 2010 3:10 PM
Subject: [fairchildclub] Straight stacks.
> Airy:
> I saw the pictures of your Plane. You have an angle cut on the end of the
> stack but there isn't any thing to create some back pressure. the stacks I
> mentioned, had a little curve(bend) in the stack itself at the end and
> then it was cut off.
>
> Mike Kelly
> Fairchild Club
>
>
>
> ------------------------------------
>
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