PSAS/ news/ 2001-02-06 - General Meeting in PCAT 103

Airframe Update

The airframe team is currently in the initial design and modeling phase of LV2 vehicle systems and is on schedule with the projected completion date of July 1st, 2001 for delivery of the first airframe.

Some of the areas currently being analyzed and worked on:

Propulsion Update

Matt - working on a degasser for the 20lb mixer via a huge mixer box. Hoping to have O motor ready late this spring.

Avionics Update

Andrew - Still looking for BMP (Big Moose Processor): we're deciding between the Motorola MPC555 and two "PC on Chip" computers. Also, Doug Stedman will hopefully be helping us with cylindrical patch antenna design. However, the avionics team is taking a 4 week break from LV2 in order to finish documenting LV1b.

Avionics Team Meeting (after PSAS General Meeting)

The Avionics Team is taking a 4 week break from LV2 and finishing up documenting LV1b so that we can put finally put LV1b behind us. Here are the notes on how we plan to do this. Note that we're not going to document LV1, because LV1b is a superset of LV1b and frankly, if anyone is going to build an avionics system, they ought to build LV1b and NOT LV1.

Everyone will take some small system of LV1b and document it. To help the process, Andrew will email out a generic outline for LV1b document.

LV1b Avionics System Documentation Responsibilities:


Preliminary LV2 Timeline

Step 1: Low Altitude Airframe Test

When: September 2001
Where: Black Rocket Desert
Max. Altitude: ~ 10,000ft


We'll launch the airframe on a small commercial motor in order to make sure its stable and it matches our predictions. We'll use whatever avionics we have built, so it could be a very minimum system. At the moment, we're planning on having the complete avionics system built, but the software may not be completely ready. A minimal avionics system would include the 2.4GHz bi-directional communications system, the flight computer, and sensors such as the global positioning system (GPS) and the inertial measurement unit (IMU).

Step 2: High Altitude Full Systems Test

When: Spring 2002
Where: Black Rocket Desert
Max. Altitude: ~70,000ft


We'll launch LV2 on our own full-sized motor to its maximum single-stage altitude. We'll have the full avionics system and test how it responds to the flight.

If everything goes really well, and we're ahead of schedule, then it's very possible that we would do Step 2 at the Step 1 launch September 2001.

Step 3: Inertial Guidance Test

When: POSSIBLY September 2002
Where: Black Rocket Desert
Max. Altitude: unknown, but probably ~70,000ft again.


We'll have the full avionics system and the "steering" control hardware in place; the rocket will actively guide itself along a course we choose. This step is dependent on the success of Step 1, Step 2, and the building and testing of the guidance hardware.