In article ,
Rusty wrote:
It looks like it has been test fired. I wonder if most liquid fueled
rocket engines on ICBM's were test fired (either before of after being
installed on the missile). It would seem the Air Force would want to
make sure it had a good missile before putting it in a silo.

Non-ablative liquid engines are invariably test-fired at the end of
manufacturing -- typically before they're installed -- for several
reasons, not least being performance calibration.

Static firing of complete stages is unusual now, but in Titan I days,
it was common.
--
"Think outside the box -- the box isn't our friend." | Henry Spencer
-- George Herbert |