SDSU Rocket Project Summer Update

The team has been working on upgrading the electronics for Galactic Aztec Mk. II.

Read the update here,
https://www.sdsurocketproject.org/updates/avionics/summer-update

Instagram Pic of the Week

Master of Research in Rocket Propulsion

I think this is relevant as alot of topics/groups I cover are University based.

Kingston University are offering a fully funded research opportunity in rocket propulsion, check out the link!

BTW you need to email for an application form before July 7th!

Current Affairs at CS – Chinese Crap Camera

Video Caption: This episode gives an introduction to a number of camera systems which have been tailored for use in a Copenhagen Suborbitals launch situation.
All systems are based on an inexpensive chinese action camera.

Copenhagen Suborbitals is the world’s only manned, amateur space program, 100% crowdfunded and nonprofit. In the future, one of us will fly to space on a home built rocket.

If you like the video please go to http://www.copsub.com and support our project. Your donations is our rocket fuel

Tortas 8 Winning Flight at Spaceport America Cup

Video Caption: MASA’s hybrid engine rocket, Tortas 8, flies at the 2017 Intercollegiate Rocket Engineering Competition for the inaugural Spaceport America Cup. It placed first in the 30,000 foot target altitude, student researched and developed, hybrid/liquid engine category. With this rocket, the team also won the Spaceport America Cup by being voted best overall by the judges.

The Michigan Aeronautical Science Association (MASA) is a student engineering project team at the University of Michigan. Learn more on our Facebook page: https://www.facebook.com/MichiganAero…
And our website: http://masa.engin.umich.edu/

Instagram Pic of the Week

BPS Thrust Vector Testing

Head over to Twitter to find out more on Joes’s landing legs and grid fin design!

Video Caption: After building a ground-up simulation of the vehicle’s behavior under thrust, I re-tuned the stability algorithm to the inertia I calculated from the results of a bifilar pendulum test. The calculation was incorrect, due to an extra set of parentheses used, and the algorithm was then tuned to the incorrect vehicle inertia. The calculated inertia was much smaller than it should have been, so the simulation predicted a vehicle requiring less control authority, hence the loose oscillation during the test. The error was found soon after.

Video Caption: Once the error in the inertia calculation of the Series B Hold Down was found, a second bifilar pendulum test was conducted with newly added landing legs and grid fins to obtain an updated measurement. The vehicle was once again tuned in the simulation, the values were set in the flight software, and the test was conducted.
A slight oscillation can be seen during the test. The cause is unconfirmed, but is likely due to the following factors. A changing CG during the burn, a slightly loose TVC mount due to ascent and landing motors being loaded, or inconsistencies in the propellant causing small non-axial moments on the vehicle. There are other potential factors, but these are the most likely.
This test passes overall, and with a sufficiently accurate tuning(for the flight profile), focus will now be set on aerodynamic testing and flight software work.