my first successful whistle motor earlier. it only my third try too!
i used 70/30 KClO4/Benzoatethe first motor didnt whistle, as i did not press it with nearly enough force. the second motor was pressed too hard, and swelled the tube, so it cad an impressive cato. the third was perfect, i made a clamp with pvc pipe and i used it to keep my tube from swelling/splitting.
a very successful flight. ill make an upload soon. ill send you a freind invite and sub so i can share it.
Congrats! Glad to hear you had success! I really like 70/30 because it's a very forgiving fuel. Benze isn't the best whistle fuel, but when it works it has a cool raspy sound. Looking forward to seeing it, send the invite.
@cplmac2 i've just started making whistle motors with kclo/benzoate (70/30) and the sound is really raspy.What's the difference if i add 1% Fe2o3 to the mix?.I've uploaded a test video on my channel.Watch it if you want.You're a great rocket maker man!!!
You should use it, it slows the fuel a bit and makes it easier to get the spindle off without damaging your fuel grain. I don't know that I would say it's mandatory, but I've used it EVERY time.
Really the fuel doesn't matter too much for sensitivity, it's the oxidizer that can be dangerous. Perchlorate is MUCH safer than Chlorate in pretty much any formula, particularly whistle and flash formulas.
@cplmac2 i was aware of that. i always try to be careful and gentle with chlorates. i much prefer perchlorates. its good that the types of fuel dont differ too much
does it work good with perchlorate and sodium ben.? and how do u actauly make it wistle? do u just make a small nozzle? lol srry i have lots of questions. :P
Perch/Benze is a cool formula, it has a raspy sound. It's definitely a safer formula than this one, chlorate is pretty sensitive in whistle formulas. The fuel itself whistles, the nozzle doesn't have much affect on the sound unless it's too deep in which case it can cause the sound to cancel itself out.
No friction or impact test from me, but I know of a couple that have been done and the sensitivity is greater than standard perch based whistle and is more powerful than standard. The mix included red iron oxide and vaseline, I just didn't include them in the overall formula.
hey, I see that you understand how to make your rockets whistle. I recently made some whistle mix and pressed it in a 3/4 inch tube with a press. It burned consistantly but didn't whistle. I need some help.
It's hard to say. My guage was defective. I didn't know that until last week when I had to replace it. I was pressing at about 10,000 PSI on the old guage, so probably somewhere around 4000 actual.
Damn.... That fucker would wake the dead!!! Great stuff!!!
Landotter1 8 months ago
@mrminh8
In general I do not think KCL03 is safe in rockets. It does have real nice power and sound though.
cplmac2 1 year ago
my first successful whistle motor earlier. it only my third try too!
i used 70/30 KClO4/Benzoatethe first motor didnt whistle, as i did not press it with nearly enough force. the second motor was pressed too hard, and swelled the tube, so it cad an impressive cato. the third was perfect, i made a clamp with pvc pipe and i used it to keep my tube from swelling/splitting.
a very successful flight. ill make an upload soon. ill send you a freind invite and sub so i can share it.
-best regards
TheBombBros 1 year ago
@TheBombBros
Congrats! Glad to hear you had success! I really like 70/30 because it's a very forgiving fuel. Benze isn't the best whistle fuel, but when it works it has a cool raspy sound. Looking forward to seeing it, send the invite.
cplmac2 1 year ago
@cplmac2 ill sub and send a request as soon as i type this message.
i wanted to buy salicylate, but benzoate was alot cheaper. i only bought 1lb. but
i wasnt planning on making any rockets with a I.D. larger than 1".
and i make my perchlorates and chlorates so those are free. so im set for a while on construction! thanks for your support!
TheBombBros 1 year ago
@cplmac2 i really like yours rockets,in particular the 3 stage rocket!!!.I wish i was good like you in pyrotechnics!
Mnemotron2010 1 year ago
@cplmac2 i've just started making whistle motors with kclo/benzoate (70/30) and the sound is really raspy.What's the difference if i add 1% Fe2o3 to the mix?.I've uploaded a test video on my channel.Watch it if you want.You're a great rocket maker man!!!
Mnemotron2010 1 year ago
@Mnemotron2010
It won't make a big difference but it should be noticeable. Might take some of the raspy sound out, and give the motor a little more power.
cplmac2 1 year ago
@cplmac2 thank you,next time i'll try with Fe2O3.Man, is it obligatory to add vaseline to the mix or can i try making a rocket with the dry mix?
Mnemotron2010 1 year ago
@Mnemotron2010
You should use it, it slows the fuel a bit and makes it easier to get the spindle off without damaging your fuel grain. I don't know that I would say it's mandatory, but I've used it EVERY time.
cplmac2 1 year ago
nice! is benzoate sor salicylate safer?
TheBombBros 1 year ago
Really the fuel doesn't matter too much for sensitivity, it's the oxidizer that can be dangerous. Perchlorate is MUCH safer than Chlorate in pretty much any formula, particularly whistle and flash formulas.
cplmac2 1 year ago
@cplmac2 i was aware of that. i always try to be careful and gentle with chlorates. i much prefer perchlorates. its good that the types of fuel dont differ too much
TheBombBros 1 year ago
does it work good with perchlorate and sodium ben.? and how do u actauly make it wistle? do u just make a small nozzle? lol srry i have lots of questions. :P
randzy1 1 year ago
Perch/Benze is a cool formula, it has a raspy sound. It's definitely a safer formula than this one, chlorate is pretty sensitive in whistle formulas. The fuel itself whistles, the nozzle doesn't have much affect on the sound unless it's too deep in which case it can cause the sound to cancel itself out.
cplmac2 1 year ago
Do you prefer sodium benzoate or sodium salicylate for your whistle mix?
FarinUrlaub77 2 years ago
Salicylate.
cplmac2 2 years ago
perch and sodium bezo, 70/30, how much would i need to get a long lift like that?
ks1231231 2 years ago
You would want a longer delay, which doesn't really add much to the lift just the burn time.
cplmac2 2 years ago
Did you ramm it or use a press?
MlkePortnoy 2 years ago
Press, I cannot recommend strongly enough the importance of NOT ramming whistle, particularly chlorate whistle.
cplmac2 2 years ago
Sounds and looks verry cool
What kind of report did you used, I gues whistle mix to?
potassiumperchlorate 2 years ago
I use flash for the report.
cplmac2 2 years ago
perfect,excelent
Jaguar93 2 years ago
it sounds like a jet engine on a plane
crazysquirrel3 3 years ago 2
No friction or impact test from me, but I know of a couple that have been done and the sensitivity is greater than standard perch based whistle and is more powerful than standard. The mix included red iron oxide and vaseline, I just didn't include them in the overall formula.
cplmac2 3 years ago
I've been playing around with 70/30 (perc/sal) dry mix on smaller rockets and had some really good results.
course I use small quatities in working container.
FonWin 3 years ago
another question.. you posted 70/30. so no binder or catalyst?
FonWin 3 years ago
Did you do any friction or impact tests on that fuel? Just curious as to how stable it is.
FonWin 3 years ago
No problem, what was your whistle formula?
cplmac2 4 years ago
hey, I see that you understand how to make your rockets whistle. I recently made some whistle mix and pressed it in a 3/4 inch tube with a press. It burned consistantly but didn't whistle. I need some help.
hondaspree847 4 years ago
it tells u on pyroguide dot com
rapidrory 4 years ago
It's hard to say. My guage was defective. I didn't know that until last week when I had to replace it. I was pressing at about 10,000 PSI on the old guage, so probably somewhere around 4000 actual.
cplmac2 4 years ago
Whistle rockets are cool!
cplmac2, how much do you press your rockets?
PETNexplosive 5 years ago
wow thats gotta be one of the sexiest rocket motors ive ever seen/heard. and a really loud report.
madlabsdottk 5 years ago
Nice job.
npirotech 5 years ago