OZ1SEJ
Educator
- Joined
- Jun 20, 2016
- Messages
- 13
- Reaction score
- 1
I built a model rocket, weight 250 grams, 54 mm in outer diameter and roughly 500 mm in length, with 3D-printed nosecone and motor mount, 2 mm ABS plastic. I've launched this rocket four or five times before, and it always flew straight up. This day, it was absolutely quiet - there was no wind. You can see the flight here:
[video=youtube;L5RiG9K0sik]https://www.youtube.com/watch?v=L5RiG9K0sik[/video]
(For scale, the distance to the yellow building in the background is roughly 100 meters.)
To me, it looks like a considerable torque is working on the rocket approximately from the time it leaves the launch rod. Thank goodness it took to the lake and not the opposite way :shock:
I've launched this rocket four or five times before, and on this day, there was no visible damage or wear to the motor mount.
Unfortunately, the rocket ended up in the lake, so I've had no opportunity to perform a postflight analysis.
The only positive thing about this flight was that the parachute deployed nicely four meters above the water.
Has anyone ever seen anything like this before? To me, it looks like an asymmetric thrust issue, but I would like to hear your comments.
Best regards,
Steen
[video=youtube;L5RiG9K0sik]https://www.youtube.com/watch?v=L5RiG9K0sik[/video]
(For scale, the distance to the yellow building in the background is roughly 100 meters.)
To me, it looks like a considerable torque is working on the rocket approximately from the time it leaves the launch rod. Thank goodness it took to the lake and not the opposite way :shock:
I've launched this rocket four or five times before, and on this day, there was no visible damage or wear to the motor mount.
Unfortunately, the rocket ended up in the lake, so I've had no opportunity to perform a postflight analysis.
The only positive thing about this flight was that the parachute deployed nicely four meters above the water.
Has anyone ever seen anything like this before? To me, it looks like an asymmetric thrust issue, but I would like to hear your comments.
Best regards,
Steen