For the first couple years of flying my KR I have been using a mild steel
exhaust bolted to the original cast logs on the corvair. I had them ceramic
coated and they have worked very well as far as keeping temps down in the
cowling and had not cracked. Last year I tooled up and designed anothe
Rob,
This is really good information for anyone wanting to design their own exhaust.
I'd like to know what books you are referencing as I'd like to have a copy on
my shelf.
As you point out, there are ideals and compromises. Just running 4 separate
head pipes made it challenging to find suff
Jeff,
I've been reading alot about exhaust designs and requirements. I'd like to
share what i've found if thats alright. Perhaps some others can benefit as well
if you already knnow this stuff. But, I might say that the reason for your
better performance is in comparison to the old system, the
N611GB turbo headers are wrapped in the fiberglass wrap in only a few
places where the hot exhaust pipes come close to (hard) oil lines and
oil filter. Later more sections may be wrapped if heating the cowl or
other parts becomes a problem.
There is doubt that it'll do any good as the flowing o
Peter Drake wrote:
>I didnt say that solid mahogany was not strong enough. However the
> "mahogany" used in Far Eastern plywood which is what you will buy down at
> the depot is a mixture of species which are mostly Mahogany substitutes
> which are not a strong as real Honduras or Brazilian Mahoga
I didnt say that solid mahogany was not strong enough. However the
"mahogany" used in Far Eastern plywood which is what you will buy down at
the depot is a mixture of species which are mostly Mahogany substitutes
which are not a strong as real Honduras or Brazilian Mahogany.
Peter Drake
- Or
Don't tell that to my to Bellanca's in the hanger. 1 is a 1947 and the other a
1974. The wing is all Mahogany. On the 47 they used 1/8 4 feet out and 3/32
the rest of the way. On the 74 it is 1/4 4 feet out and 1/16 the rest of the
way. The airplane does not have any record of a wing departing
Many KRs have been built using Mahogany, and no issues with it. Steel is
stronger than both.
See N64KR at http://KRBuilder.org - Then click on the pics
See you at the 2009 - KR Gathering in Mt. Vernon, Ill
There is a time for building and a time for FLYING and the time for Flying
has begun.
Dan
Rick
I would agree with all of that except the mahogany ply. It does not have
anything like the strength of Birch.
We are not allowed to use it structurally in the UK because of this.
Peter Drake
Hereford UK
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To: "KRnet"
Sent: Monday, January 19, 2009 5:07 PM
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