My First Post(rockets)
#46
Posted 03 October 2003 - 04:31 PM
#47
Posted 05 October 2003 - 06:37 PM
Don't look at the shabby camerawork by the way, hey it's my first movie.
I must add that it looks not as good on camera then I thougt.
Tonight I will try some red and blue collored stars with H3 burstcharge.
Offcouse a movie will be made of this launch.
Here's the link by the wayJerronimo's first vid thanks again BigG.
#49
Posted 06 October 2003 - 11:52 AM
thats one of my 12mm rockets with a film can sized payload. First rocket like that ive ever made. I wont have so much delay next time, that way it wont get the chance to arch over like that.
Aside from that i liked your vid, looking forward to seeing your other rockets. Adios.
-Matt
#50
Posted 07 October 2003 - 04:59 PM
I must say it looks better than mine hahahaha
What kind of stars/burstcharge did you use?
#51
Posted 08 October 2003 - 02:12 AM
Glad to see you liked it.
-Matt
#52
Posted 25 October 2003 - 09:06 AM
The first couple used pulverone - but it seems to burn far too quickly, and they have a tendancy to blow the chokes out.
This morning I decided to try a chlorate mixture (KClO3 65%, Sucrose 18%, Charcoal 17%).
Bloody hell, what a bang !
The 'rocket' got about 3 feet off the ground then blew itself to bits - and I mean bits. Even the stick was destroyed ;-)
Clearly this mix is of no use as a propellant - probably make a fine burst charge though.
Ho hum ,back to the drawing board.
Anyone fancy a quick trip to Brighton to show me how it's done ?
Edited by Bub, 25 October 2003 - 09:09 AM.
#53
Posted 25 October 2003 - 10:01 AM
-Matt
#54
Posted 25 October 2003 - 10:59 AM
I've made 6 more ( ) - with varying mixtures - all in identical tubes & with the same chokes (using 4 different charges).
I'll fire them tonight - it's easier to see what's going on when it's darker.
Will post some photos (& videos if they're any good) on my site with a link from here.
Should be good for a laugh ...
Wish me luck.
...Bub.
Edited by Bub, 25 October 2003 - 11:00 AM.
#55
Posted 25 October 2003 - 12:42 PM
-Matt
#56
Posted 25 October 2003 - 12:57 PM
Bub, Trust me - simple BP does it. Go with 12mm id and 3-4 mm choke. Keep your tube short - about 5 cm for your first try - it will climb a good 100 feet. Make sure your stick is of good size - about 50cm length minimum. You don't even need a spindle - just drill the choke using a drill bit and your fingers (not a drill).Well, first your rockets are miles better than mine.
The first couple used pulverone - but it seems to burn far too quickly, and they have a tendancy to blow the chokes out.
This morning I decided to try a chlorate mixture (KClO3 65%, Sucrose 18%, Charcoal 17%).
Bloody hell, what a bang !
The 'rocket' got about 3 feet off the ground then blew itself to bits - and I mean bits. Even the stick was destroyed ;-)
Clearly this mix is of no use as a propellant - probably make a fine burst charge though.
Ho hum ,back to the drawing board.
Anyone fancy a quick trip to Brighton to show me how it's done ?
Forgive my remark - but using chlorate mix for your rocket when you did not even get the bp one going is not smart. Also, make sure your tube is of good thickness. At least 3mm wall.
BigG
#57
Posted 25 October 2003 - 03:20 PM
My tubes are about 190mm - a good deal longer than the size you suggest - I'll make some smaller ones and see if that helps.
Thanks for the tip(s) !
...Bub
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