Tube vehicle construction

Octoboer 8 and 12, 2002 Meeting Notes
Octoboer 8 and 12, 2002 Meeting Notes
Nothing but construction work on the tube vehicle this week.
http://media.armadilloaerospace.com/2002_10_12/bottomFrame.jpg
The lower frame is completed, with attitude engines and new,
softer wire rope isolators. We leak
checked and test fired all the engines, and should be bolting it into the
vehicle next week.
We put everything together for a test fit:
http://media.armadilloaerospace.com/2002_10_12/testFit.jpg
The vehicle is very stout, and we are pretty sure it is
going to survive parachute recovery without damage. We arent real happy with the rocket tower for the parachute,
which is taking up a lot of height, and is still a bit flimsy. Once we determined that we were going to
have to let it pull completely free of the main vehicle, we had to add a
separate little parachute to the tower, which increased the height even
more. We are going to test pull the
parachute on Tuesday, but we are considering ditching the tower, and putting
three small rocket engines directly on the side of the main vehicle nose cone,
which would give us a degree of redundancy as well as shortening everything a
lot.
With only 250 psi tank pressure, this vehicle is not going
to have much acceleration at all with only a single big engine, it will lift
off about like a real space booster. We
are going to do some flights like this, but we intend to build a second lower
frame that uses four large, differentially throttled engines, which is our
current thinking for future vehicles.
At that point, it will have plenty of power, and we might consider
putting a cabin section on it
http://media.armadilloaerospace.com/2002_10_12/onTop.jpg
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