Jon Elson wrote:

That's a Kauffmann starter, also used in a lot of aircraft up to the
F-4, at least. it was a pretty big shell (at least for an F-4) with a
SLOW-burning powder. it would give about 15 seconds of continuous gas
production.

I think the USAF used them. The Marine F4J and F4S I worked on required compressed air to
start.

Wes