nordicwolf Posted March 28, 2024 Posted March 28, 2024 So far I've had pretty good results with BP motors...4oz core burner with 60:30:10-ish comp; 4oz end burner hot ballmilled BP; 1 pound hybrid with hot BP. Next up I think I want to try whistle (strobe will be last if ever as I hear it can be difficult to dial in, avoid CATO, etc...) First simple question - I have whistle tooling (4oz.) Do I need to press a nozzle for a whistle motor with whistle tooling? I also have 3/4" 1# hybrid tooling I believe can make whistle motors, but again would it need a nozzle? Would the comp need any adjustments due to tooling not being "true" whistle tooling? I figure I'd start with a potassium benzoate comp as I've made it before into a whistling-pete fountain, and it was very loud! (and an aside...end burner vs core-burner. all things being optimized for each construction (hottest comp core-burn can take w/o popping; 75-15-10 ball-milled BP with eastern red cedar charcoal. Which rocket flies higher? end-burner or core-burner?) Thanks!
Zumber Posted March 28, 2024 Posted March 28, 2024 Whistle is extremely powderful and sensitive mixture. You must not even screen it with sieve you will need paraffin oil/ mineral oil to reduce its sensitivity while mixing and pressing. Also needs personal protective screen or remote press to press whistle. And whistle needs no nozzle at all.....it is nozzleless..
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