[SS-VehDev] Re: Ameron filament wound tubing

[Lakestake Rocketry]

Good morning,

One of the down sides to fabricating our own airframe was that it would
be prohibitively expensive in composite materials to get the strength
needed for the motor casing.

If these tubes are so darned ugly what about using them as engine
casings only and building a lovely composite airframe over them?
They strength of the airframe would add a margin of safety to the
motor casings and the reduced pressure requirements would make
a composite airframe again attractive financially.

Matt

P.S.  If it wasn't for the ridges we could use the engine casing as
the mandres for the airframe...

On 11/23/05, Rich Nakka <richnakka at rogers.com> wrote:
>
> Bill,
> I urge that we get two 24' sticks rather than 20' sticks. The extra 4' can
> be cut off one of them, and used for the short-stack motor (40" needed).
> The second extra length can be used for a hydro-static test of the tubing
> to destruction. Part of it can also be used for materials testing.
> If we only get two 20' sections, we have no material to do testing with,
> which could put us at a serious disadvantage.
>
> Richard
> -------------
>
> william colburn wrote:
>
> The sample is in today. As I suspected from
> discussions and the online foto, the color is an ugly
> brownish green. But the surface is quite smooth, a
> good point. It does have slight ripples which do not
> seem apparent at a 3.5 inch diameter but might be
> worse on the 10 inch tube.
>
> I have requested a quote for two 20 foot sticks
> (shortest we can get) of the Ameron 3200A 10 inch
> nominal pipe.
>
> We need to establish a shipping address. I suppose one
> would certainly go to Canada, eh Rich?
>
> BC
>
>
>
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