@gertnood I believe kevinlyman1 was asking how, not what, as in the equipment and/or calculations used to determine the 641.2 mph speed, 15,385' altitude and 6.722 G's attained.
@AHGlasher [LATE REPLY] So he was, you're right. That's covered in the video description. All large rockets like this carry avionics, pyrotechnic delays like on smaller rockets is generally not used above "K" class motors. The avionics typically contain an integrating accelerometer and barometric pressure sensor to control recovery system functions and upper stage ignition typically by a preset timer triggered by liftoff acceleration. This was one of my favourite flights of the event.
@AHGlasher [Where did my first reply go?] You're right, he was indeed. The onboard electronics log all of this - typically redundant integrating accelerometer and barometric pressure sensor devices controlling the recovery system functions (separation at apogee and main chute deployment at low altitude), & upper stage ignition controlled by a preset timer triggered by the G forces from the first stage boost. These devices are available from various vendors serving the high power rocket market.
Very Cool! That's one of the best rocket videos I've ever seen. I was at LDRS 25 and I do remember your flight. Looking forward to seeing more videos. Keep up the good work.
it looks something like a nike-ajax anti-aircraft interceptor missile back in the 1950s
solar793 3 days ago
sweet rocket nice job on the two stage...
noahfly1 5 months ago
@jonalululy Almost. Just 126.8 mph shy... :)
PeanutButterGtr 9 months ago
Thumbs up if you counted down with mission control...!!!
PeanutButterGtr 9 months ago
Omg that was an AWESOME flight!!! Please post a 3 stager video soon!!!
PeanutButterGtr 9 months ago
AWSOME!!!
ctoney1992 11 months ago
Great work, one of the best Rockets i've ever seen. Keep it up!
UnsignedVoid32 1 year ago
great flight
edwinshap1 1 year ago
Congratulations, that was awesome.
diegomdallas 1 year ago
That was the brilliant. Do you have a construction package on any of the sites? Nice job on a really complex build.
belfastboyca 1 year ago
insane!!!!
edwinshap1 1 year ago
Nice flight! I have a few with on board video also. (jetmanflyhigh) youtube
jetmanflyhigh 1 year ago
That was awesome! Makes me want to launch rockets. how do you know how high and fast it went?
kevinlyman1 1 year ago
@kevinlyman1 It answers that question right in the video at 3:22.
gertnood 1 year ago
@gertnood I believe kevinlyman1 was asking how, not what, as in the equipment and/or calculations used to determine the 641.2 mph speed, 15,385' altitude and 6.722 G's attained.
I would like to know as well. 8c)
AHGlasher 7 months ago
@AHGlasher [LATE REPLY] So he was, you're right. That's covered in the video description. All large rockets like this carry avionics, pyrotechnic delays like on smaller rockets is generally not used above "K" class motors. The avionics typically contain an integrating accelerometer and barometric pressure sensor to control recovery system functions and upper stage ignition typically by a preset timer triggered by liftoff acceleration. This was one of my favourite flights of the event.
gertnood 1 month ago
@AHGlasher [Where did my first reply go?] You're right, he was indeed. The onboard electronics log all of this - typically redundant integrating accelerometer and barometric pressure sensor devices controlling the recovery system functions (separation at apogee and main chute deployment at low altitude), & upper stage ignition controlled by a preset timer triggered by the G forces from the first stage boost. These devices are available from various vendors serving the high power rocket market.
gertnood 1 month ago
damn how long did it take for that thing to come back down
Hambo19911 1 year ago
Very Cool! That's one of the best rocket videos I've ever seen. I was at LDRS 25 and I do remember your flight. Looking forward to seeing more videos. Keep up the good work.
TheBayourat
TheBayourat 1 year ago
@TheBayourat Thanks for the nice remarks! I'm glad you enjoyed the launch. Hopefully, I'll get back to building some new designs soon.
kdaugi 1 year ago
@kdaugi Yes, I recall that launch well, you guys did a bangup job. As I recall you hit 15,300' that time too?
gertnood 1 year ago
Very well done! I love staged rockets! That was impressive!
nikonianbrad 2 years ago
amazing work...deserves more views..good job
adam125zzz 2 years ago
oh man, this video needs to be re uploaded.... audio track is disabled! that or boycott shittube!
Atevra 2 years ago