Download Project/Flight Report
Long Detailed Video - http://youtu.be/rvDqoxMUroA?hd=1
Short "Highlights" Video - http://youtu.be/5HTwbpjBUOk?hd=1
Student Payloads for Extreme Environments Research
Symbiosis Foundation will be soliciting payload concepts from High School and Universities.
Grants will be awarded to the top concepts and their payloads will fly onboard the next flight of Qu8k.
Please send your schools information to firstname.lastname@example.org to be informed as this project moves forward/
Frame Grabs from On-Board Video
My rushed igniter. I made this literally minutes before the launch using a pair of DaveyFire 28F and a chunk of AMW BB Propellant
The aeroshroud protecting the GoPro was intended to be CNC cut from aluminum but time constraints forced me to us the FDM printed plastic version which obviously melted!
The middle GoPro was completely destroyed.
RDAS Data Excel
RDAS Raw Data (.rd)
Cosmic Ray Data
This is the RAS Aero simulation after tweaking the motor burn time a little to better match the flight. Before the adjustment the sim was showing 126k.
The time to apogee matches well with what the video shows. Another interesting thing is that the maximum descent rate is 900 ft/s (not shown in this graph).
The change in slope during descent phase at around 60-80k illustrates where the air finally starts filling the chute and slowing things down.
Fins On a Cylinder (Fin-O-Cyl) grain. This gives a nearly neutral (slightly progressive) thrust profile. The propellant web also serves to insulate the casing for the majority of the burn.
This geometry is formed with a foam mandrel that is held in place with a steel pipe during casting. After the propellant is cured, Acetone is used to melt the foam and the mandrel is removed.
Internal surface of the casing is polished smooth for a good o-ring seating surface.
The recovery cylinder with the test charge installed.
Sand Blasting the inside of the rocket motor to promote better adhesion of the propellant to the casing.
Thanks to all my friends and family that contributed
A Tremendous Thanks to my sponsors
8 inch diameter 167.5 inch long 320 lbs liftoff weight Q-18,000 143,000 N-sec 4,000 lbs of thrust for 8 seconds 121,000’ Max Altitude 3,200 ft/s Max Velocity 92 seconds to apogee 8.5 minutes total flight time 900 ft/s maximum velocity during recovery Full recovery 3 miles from launch site
More of Derek's rockets
Copyright Derek Deville 2011 (unless indicated otherwise)