| date | results |
|---|
| 2003-10-18 |
4 launches were done with a single Errthum-2-mod-3 rocket at 100psi.
I tried a different way of packing the chute and attaching the nose cone.
Results were great and deployment occurred near apogee.
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| 2003-10-xx |
Errthum-3 veturi rocket begins development
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| 2003-10-05 |
5 launches were done with two Errthum-2-mod-3 rockets at 100psi.
Launches were near perfect with the new improvements.
However, one of the rockets did not deploy, unknown why.
It was damaged to the point the next time it flew, it veered wildly.
That one will need to be rebuilt if it is to fly again.
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| 2003-09-20 |
4 launches were done with two Errthum-2-mod-2 rockets at 100psi.
Duck tape was used to build up a cylinder around the nose base to attempt to hold it on till the apogee of the flight.
It seemed to help, but not well enough. Chutes still deployed prematurely.
Dispite the high winds, rocket launches went straight up and the flight paths were true.
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| 2003-09-14 |
First official launches utilizing water.
An Errthum-T rocket was used for the first official launch to test the system.
Two Errthum-2 rockets were launched three times each, twice at 80psi and once at 100psi.
In all cases the rocket nose was thrown off at launch and parachute opened prematurely.
Still, one height recorded was 150+ feet.
The Errthum-1 also had its first and last flights.
In its maiden launch the rocket destabilized soon after launch and took a arching flight path.
This kept the "speed flap" style chute from deploying and caused it to nose into the ground at high speed.
The crash knocked off the fins and damaged the nose.
The rocket did make several experimental launches after that before ending its career.
launches1.zip (4meg zipped MPG) Shows in order: The ill launching of the Errthum-1, two launches of an Errthum-2 (none of which was the recorded 150 foot launch)
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| 2003-09-xx |
Errthum-1 and two Errthum-2 rockets are finished and ready for launching.
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| 2003-08-xx |
The launcher is built and several rockets started.
An Errthum-T style rocket is used for all tests, including a dry launch at 40psi acheiving about 20 feet.
It is discovered that even 10psi is enough to launch a rocket into the garage ceiling with damaging effects.
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