Archer Cowl needs work - Advice?

"George Patterson" wrote in message
...


UltraJohn wrote:

Isn't gypsum = to limestone, water and talc ?

No. http://www.minerals.net/mineral/sulf...sum/gypsum.htm

George Patterson

Right. It occurs in veins, only in a few places in the country, and has
clumps of gypsum imbedded in other garbage rock. They crush it, and in a
liquid solution that has a specific gravity of 2.5, (as I recall), the
gypsum floats right off the top of the solution.
--
Jim in NC

"George Patterson" wrote

You *do* realize that we are talking about joint compound, not sheet rock?

George Patterson

Uhh, no. *That* could be the explanation! Somewhere I missed that.
--
Jim in NC

On Sat, 19 Feb 2005 01:58:48 GMT, George Patterson
wrote:


George Patterson
He who tries to carry a cat by the tail learns something he can learn in
no other way.
So, you've met my cat?

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

Just to followup on this matter, I found a fiberglass "expert" at a boatyard
who offered to do the job for $250-300. One of my partners in the airplane
thought that was too high, and decided to do it himself. He'd taken a
composites course at Oshkosh a few years ago and was keen to try out his
skills. He did what appears to be a great job, and it's done. We'll see
how well it lasts. These were not structural problems, mostly cosmetic.
The A&P is happy with the results.

Since he's the partner who landed on the runway that was 18" too short and
put the spinner and prop into the chain link fence, (probably causing some
of the problems with the cowl) perhaps it's just karma returning. At any
rate, job done, very low cost, and looks very good.

--
Bob (Chief Pilot, White Knuckle Airways)


"Roger" wrote in message
...
On Sat, 19 Feb 2005 01:58:48 GMT, George Patterson
wrote:


George Patterson
He who tries to carry a cat by the tail learns something he can
learn in
no other way.
So, you've met my cat?

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

On Mon, 28 Feb 2005 13:02:45 -0500, "Bob Chilcoat"
wrote:

Just to followup on this matter, I found a fiberglass "expert" at a boatyard
who offered to do the job for $250-300. One of my partners in the airplane
thought that was too high, and decided to do it himself. He'd taken a
composites course at Oshkosh a few years ago and was keen to try out his
skills. He did what appears to be a great job, and it's done. We'll see
how well it lasts. These were not structural problems, mostly cosmetic.
The A&P is happy with the results.

Since he's the partner who landed on the runway that was 18" too short and
put the spinner and prop into the chain link fence, (probably causing some
of the problems with the cowl) perhaps it's just karma returning. At any
rate, job done, very low cost, and looks very good.


I hope he used the same or compatible resins.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

So do I. He said he used a West epoxy that was recommended for boats.
Sounds like that should work for both epoxy and polyester resins. I guess
we'll see in a few months. Remember that none of this is structural -
purely cosmetic.

--
Bob (Chief Pilot, White Knuckle Airways)


"Roger" wrote in message
news
On Mon, 28 Feb 2005 13:02:45 -0500, "Bob Chilcoat"
wrote:

Just to followup on this matter, I found a fiberglass "expert" at a
boatyard
who offered to do the job for $250-300. One of my partners in the
airplane
thought that was too high, and decided to do it himself. He'd taken a
composites course at Oshkosh a few years ago and was keen to try out his
skills. He did what appears to be a great job, and it's done. We'll see
how well it lasts. These were not structural problems, mostly cosmetic.
The A&P is happy with the results.

Since he's the partner who landed on the runway that was 18" too short
and
put the spinner and prop into the chain link fence, (probably causing
some
of the problems with the cowl) perhaps it's just karma returning. At any
rate, job done, very low cost, and looks very good.


I hope he used the same or compatible resins.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

On Thu, 3 Mar 2005 17:36:44 -0500, "Bob Chilcoat"
wrote:

So do I. He said he used a West epoxy that was recommended for boats.
Sounds like that should work for both epoxy and polyester resins. I guess
we'll see in a few months. Remember that none of this is structural -
purely cosmetic.

I don't know anything about Polyester resins, but I don't think I'd
want to mix vinyl ester and epoxy without a lot of testing.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com