On Wed, 20 Jan 2010 20:23:07 +0000, Andy Champ wrote:
I bought my father a DVD about the DH Venom , which has one of the early
jets, for Christmas. It has a start sequence in it. it seems they only
have igniters in two of the combustion chambers, so the start sequence
throws quite a lot of unburned fuel vapour out. Which is then ignited
by the live chambers.

Aha, reminded me of this one, featuring a RR Derwent:

http://www.youtube.com/watch?v=4pTUeuEv8Uc

.... good stuff at around 4:40. Even when they get it to start sucessfully,
it seems to pour a lot of fuel out of the exhaust and then 'catch' on
only some of the chambers.

Much more spectacular than the little boat diesel I had to fire up on
Sunday. Hadn't been touched for at least a fortnight, it was kind of
reluctant.

Nice I'm looking forward to firing our ancient truck up next spring
once the weather eases off a bit (no brake servo, drums all round, and
only 2wd so it's a bit suicidal to use in the winter here) - it'll be fun
getting it to cough back into life again.

cheers

Jules