2 stage water rocket and single stage QRS Feb launch

Feb update on 2 stage Water Rocket
Had some success with bugwubber clamp working and radial deploy success.
Very low altitude on second stage launch. Drogue was supposed to pull a main chute out but failed.
Second stage chute failed to deploy. Not sure why. Second stage suffered fatal damage.
Hoping to complete a new rocket with drop away boosters and a second stage on top for the April QRS launch.

Then had fun with single stage rockets made from 70mm WATER bottles (not Soda).
Nice straight flights except the first one snapped off the chute but amazingly it glided back to the ground without any damage.. Lucky day.

Next 2 launches went fine.

Update to 2 stage rocket

After a failure with a 2 stage rocket launch last month, I have modified the clamp system with extensions. The previous failures were caused by the sleeve distorting under pressure and allowing the clamp to release. The extensions are designed to clamp to the upper stage which has a firm shape and should not allow the clamp to release prematurely... Here's hoping.

A link to last months failure is here. (about half way through)