[AR] Re: Portland State Aerospace Society
- From: David Weinshenker <daze39@xxxxxxxxxxxxx>
- To: arocket@xxxxxxxxxxxxx
- Date: Mon, 25 Apr 2016 22:28:15 -0700
On 04/25/2016 10:05 PM, Ben Brockert wrote:
It's more the cast aluminum alloys that are a worry with ethanol, thus
the concern in cast engine blocks and similar mass-produced car parts.
Propellant tanks are typically wrought alloys of significantly
different composition.
Yeah, I wouldn't expect ethanol to be too much trouble with something
like 6061 - but I've seen cast Al parts that appeared to be made of
somewhat more chemically-sensitive alloys...
-dave w
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