National Engineer’s Week is happening next week, organized by our lovely Engineering Student Council. CPSS will have a booth in the Club Showcase, next Wednesday (2/24) from 10am to 1pm, located in the UU Plaza. Stop by to help talk about the club, or just to say hello!
There are events happening all week long, more information about eWeek can be found on the ESC website here.
The nozzle for HM-7 was completed today. This marks the final part for the calendar year, and test preparations will ramp in early January.
A few CPSS members went out to Baywood Elementary in Los Osos, CA for an art and science expo. We had students build their own bottle rockets, designing their own fins and nosecones from cardboard and construction paper. Everyone involved had a great time!
The CPSS safety protocol was approved by Cal Poly Environmental Health and Safety today. We’ll be able to jump right into the action when spring quarter starts.
All members are encouraged to check out the safety protocol and be familiar with it. It’s over on the Members page.
A hot fire was conducted this weekend with mixed results. We used a steel nozzle expecting it not to melt for a short 2 second burn, however the area of the nozzle more than doubled during the test.
UP GOER I will be our new test bed rocket for experimental systems. We just began construction and expect it to be finished in two weeks. The configuration we will fly in June will test a new recovery system with a side ejected parachute, along with an active guidance system. Both will be integral components to SkyGuard. In this configuration we expect it to reach a modest 8,000ft.
Edit: The launch has been postponed until our organization has been unsuspended. Specifications
Length 11′ 4″
Motor M1939 (Aerotech)
With this test, we were expecting our first hot fire of HM 5.6, but we experienced a minor mechanical issue. The pneumatically actuated fire valve, which lets the nitrous flow into the combustion chamber, opened too slowly, preventing the motor from properly igniting. The valve will be inspected and repaired or possibly replaced with a pyro-actuated valve. Our goal is to have the hot fire completed by next weekend.
We had a successful cold flow test of the HM 5.6 injector today. Our systems performed excellently overall with only a few minor hiccups. Using this data, we will be setting up for the hot fire test of HM 5.6 on Thursday.