- WRA2 Member
- Posts: 32
- Joined: Thu Jul 26, 2018 3:53 am
1. Tommy timers! $1.95. I am now awash (sorry-water rocket related pun) with em.
2. Small plastic toy telescopes that just happen to just barely fit into a full bore nozzle. With a washer, I think they might make for a good t-nozzle.
3. Plastic astronauts and plastic figures with parachutes. Thought they'd make for a fun release at apogee.
4. Tornado tubes, I called several local toy stores, including the science related toy shops without finding a good supplier. Party store, who knew?
5. Balloon whistle. I'm curious if anyone has used these. They are small plastic tubes (diameter smaller than full bore nozzle) with a propeller/noise maker inside. If I can fit it into a t-nozzle or second stage, I wonder what it would sound like... and if it would still be able to push out enough air for a good sustained release.
6. Ooga horn. It's basically a two piece plastic horn. The horn, and plastic squeeze bulb. The squeeze bulb looks like it might make for a great 1-liter nosecone. Artistic and squishy.
7. Plastic magic wand. I'm hoping the diameter is the right size to use for a crushing sleeve staging device.
- WRA2 Member
- Posts: 235
- Joined: Sun May 07, 2017 2:18 pm
I always wondered what the point of a T nozzle would be. It just adds weight and provides less thrust. The only benefit I can see is the cool-looking longer burn, but that doesn't translate into higher altitude. My simulations suggest that the optimal nozzle size is the diameter of the rocket, basically a plug of water that gets ejected all at once.