Am 29.11.2015 um 03:52 schrieb Monroe L. King Jr.:
Yeah, if you need really small valves they can't be OTS. If you can't
make a valve your stuck. A small rocket would not have fittings at all
it would need to be all welded. An automotive fuel injector is a type of
pilot valve, you would have to machine your own valves and wind your own
solenoids. I'd use a spool valve for the main.