The engines are the same as others, the lower ones just do not have any ejection charge (sometimes known as "plugged"). The challenge is igniting the upper stages with on-board electronics and igniters. In a 3 stage rocket like this one, a special circuit is used which arms the third stage igniter only after the ignition of the 2nd stage is successful.
Thanks, and I know. I thought about editing out the first half of it since it's so frustrating to watch, but at this point it's been that way for a couple of years, so....
Thanks. It worked really well. I'll be launching it again this year with the MARS rocket club out of Rochester, NY. Thinking about going for it and changing the 1st stage to K1100 (I used a 54mm-38mm adapter for the J570). I'm hoping for 8000 feet out of the K1100-J350-I161 setup.
In RockSim it was calculated to go about 6500feet, but with the strong wind that day (20mph+) it weathercocked a good bit and ended up aroudn 5000 feet. I plan to launch it again this summer but with a K1100 in the 1st stage rather than the J570. That should put it near 8000'. Hopefully, the video will be a lot more stable !
I think one of my next projects will be a two stage rocket with G64s... your rocket is awesome. What sort of electronics did you use to fire the upper stages?
Great work, three stage high power flights are so rare. And they so seldom work. The only possible improvement might be higher thrust for the first two stages and then a slow upper (or fast if you want all fast). I know blue isnt that loved by most, but I really enjoy it. I know there isnt any smoke, blah... But I like the power, and it probably lends best to stage flights. Id love to see you do two blue motors staged to a black jack - smoky sam etc upper! : )
It was expected to go over a mile, but by the time it got through the third stage it had leaned over into the wind about 45 degrees. The wind that day was over 20 mph.
There are other 3 stage rockets around, but not many. I got inspired to try and build one after seeing "Three's Company" by John Montemayor of austin-rocketry.
Having both upper stages ignite, and having the parachutes deploy on all three stages takes a good bit of luck!
Cool rocket!! Will you be launching that at the LDRS (Large and Dangerous Rocket Society) meeting in Vegas this July? I hear you have the only 3 stage rocket in the US!
Sorry about the video stability before hand - wasn't me - obviously watching something other stuff. It was very, very, windy that day, and we had to upgrade to 1/2" launch rod, which meant taping on temporary launch lugs (which explains the black duct tape stripes on the rocket in the video). The launch went perfect, even the 2 to 3rd went fine despite the "oh-no wiggle" in the video. Overall, the Adept 326 staging system worked perfect, and the PML
stop moving really ADD
TheJohny1408 9 months ago
whoever filmed this had ADHD..seriously..
AirsoftSeattleReveiw 9 months ago
fucking monkey holding the camara
bigbilly81290 11 months ago
I wish the person holding the camera would stop moving about.
Cool rocket though.
Maxequalbikermadness 1 year ago
@DRTBGOFDOOM its just a regular engine but the time delay before blows the the cchute or in this case ignites the next motor is zero
flyingchimp99 1 year ago
the shaking is a pain in the arse!
Bo83xxx 1 year ago
r u fuckin ADHD
uj124h9 1 year ago
I can't believe I stumbled upon this vid. I remember that day. Great rocket, but say, I wish I had a Dramamine drip going while I watched the video..
videoshareaccount 2 years ago
The engines are the same as others, the lower ones just do not have any ejection charge (sometimes known as "plugged"). The challenge is igniting the upper stages with on-board electronics and igniters. In a 3 stage rocket like this one, a special circuit is used which arms the third stage igniter only after the ignition of the 2nd stage is successful.
bzzh8c 2 years ago
good rocket,bad taking of video...
ZenonDorinPower 2 years ago 8
Thanks, and I know. I thought about editing out the first half of it since it's so frustrating to watch, but at this point it's been that way for a couple of years, so....
bzzh8c 2 years ago
cool rocket!
100gerbils 2 years ago
Thanks. It worked really well. I'll be launching it again this year with the MARS rocket club out of Rochester, NY. Thinking about going for it and changing the 1st stage to K1100 (I used a 54mm-38mm adapter for the J570). I'm hoping for 8000 feet out of the K1100-J350-I161 setup.
bzzh8c 2 years ago
In RockSim it was calculated to go about 6500feet, but with the strong wind that day (20mph+) it weathercocked a good bit and ended up aroudn 5000 feet. I plan to launch it again this summer but with a K1100 in the 1st stage rather than the J570. That should put it near 8000'. Hopefully, the video will be a lot more stable !
bzzh8c 3 years ago
I think one of my next projects will be a two stage rocket with G64s... your rocket is awesome. What sort of electronics did you use to fire the upper stages?
DTHRocket 3 years ago
I used an Adept ES236 stager. It's meant for 3 stage rockets, but they make and ES231 for two stagers. They work great.
bzzh8c 3 years ago
really nice rocket you had there!
typhonfighter 4 years ago
Thanks. There's a very, very small club of HPR rocketeers that have done successful 3-stage composite rockets and I was glad to join them. Shazam!
bzzh8c 3 years ago
Hahaha... I took this video!
I can tell by my steady hand.....:o
Great flight, Todd!
tamoore 4 years ago
Not your fault. It is hard to zoom that much without a tripod. Atleat you caught the important bits =]
dghomefry 3 years ago
Super 3 stage launch. Would have been a much better flight for you had that wind speed been a bit lower.
tjthev 4 years ago
Great work, three stage high power flights are so rare. And they so seldom work. The only possible improvement might be higher thrust for the first two stages and then a slow upper (or fast if you want all fast). I know blue isnt that loved by most, but I really enjoy it. I know there isnt any smoke, blah... But I like the power, and it probably lends best to stage flights. Id love to see you do two blue motors staged to a black jack - smoky sam etc upper! : )
r0ck3tsm0k3 4 years ago
It was expected to go over a mile, but by the time it got through the third stage it had leaned over into the wind about 45 degrees. The wind that day was over 20 mph.
bzzh8c 4 years ago
There are other 3 stage rockets around, but not many. I got inspired to try and build one after seeing "Three's Company" by John Montemayor of austin-rocketry.
Having both upper stages ignite, and having the parachutes deploy on all three stages takes a good bit of luck!
bzzh8c 4 years ago
Cool rocket!! Will you be launching that at the LDRS (Large and Dangerous Rocket Society) meeting in Vegas this July? I hear you have the only 3 stage rocket in the US!
Vestmarine 4 years ago
yea, next time please don't strap the video camera on the back of your yellow lab, dude.
jtmichaels 4 years ago
Sorry about the video stability before hand - wasn't me - obviously watching something other stuff. It was very, very, windy that day, and we had to upgrade to 1/2" launch rod, which meant taping on temporary launch lugs (which explains the black duct tape stripes on the rocket in the video). The launch went perfect, even the 2 to 3rd went fine despite the "oh-no wiggle" in the video. Overall, the Adept 326 staging system worked perfect, and the PML
components were great.
bzzh8c 5 years ago
And, to answer your question, Shazam III topped out around 4,500 ft.
bzzh8c 5 years ago