Newsgroups: sci.space.shuttle
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: Model Rocket Engines
Message-ID: <1989Jan15.050421.15141@utzoo.uucp>
Organization: U of Toronto Zoology
References: <6189@ecsvax.uncecs.edu>
Date: Sun, 15 Jan 89 05:04:21 GMT

In article <6189@ecsvax.uncecs.edu> cjl@ecsvax.uncecs.edu (Charles J. Lord) writes:
>... I have a number of old engines from the late
>60's to early 70's , all Estes A and B series.  Anyone got any
>idea how reliable these would still be? ...

Hmm, 20 years.  That's a fairly long shelf life for a solid-fuel motor.
Not impossible, but long.  Test some, *carefully*.  Inspect the remains
thoroughly afterward.  If even one malfunctions in test or shows something
odd in the post-mortem, I wouldn't trust them.  If testing goes perfectly,
then try using some of them... carefully.
-- 
"God willing, we will return." |     Henry Spencer at U of Toronto Zoology
-Eugene Cernan, the Moon, 1972 | uunet!attcan!utzoo!henry henry@zoo.toronto.edu