Very nice! Some tips for the camera: - Throw away the lens cap. (We have a beautiful flight filmed ... all black... because we didn't notice that the lens cap was on) Or at least paint the lens cap bright orange. - Put a piece of tape over the SD card. We've had the card pop out a couple of times af...

Very Nice build thread and great set of upgrades for the rocket! I think with that tilt switch setup, you'll be able to hear the rocket at burnout if it is not too far away by that shage. How will you access the altimeter to turn it on when it is on the pad?

It's a good question, and I think you could leave it out in some designs. In addition to what OTT said, some other uses for the motor mount tube (MMT) include: 1. In LPR sometimes people will friction fit the motor, and this is easier with a tube than with centering rings. The tube will also commonl...

Sounds like the project is going along well. Really looking forward to seeing this one fly.

Cheers guys. :D I was doing a little more research on powder rockets today, and I had no idea that there was research done in this area in the early 70's in injecting powedered propellant (rather than liquids or solids) into a combustion chamber. Here is the research paper done by Bell Aerospace. ht...

8) Water, Flour, Pyro...... Are you sure you weren't a bread Baker in a past life George.... One of the things we did discuss was that we should have had another rocket with eggs and one with sugar. To top it off a rocket filled with candles, and then a pyro rocket to cook it all and light the cand...

Had a bit of fun launching some water rockets powered by compressed air and dry flour at the last launch of the year.



They do make a bit of a mess on the ground though.

The fins look great OTT! Good luck with the flight, I'm very much looking forward to the flight report. How do you think the fins will go on landing?

Here are the next two parts of the series. Part 5 is about building a test stand to apply forces (up to 10kN) to different components before we subject them to compressed air. v5f0stjvqLE Part 6 describes the overall launcher design and also how we made the release head that holds down the entire ro...

Sounds like a great design. I will definitely be following the build thread.

Hi Derek, Welcome to the forum and back to rocketry.

Very interesting update on this project OTT. Wow, 140W is quite a bit power to have on hand when needed. Interesting problem with the negative G-s. How will you determine when it is safe to start trusting sensor after burnout? Also when the servos are in their neutral position, are they actively bei...

Thanks for the nice words OTT. Dad and I are having fun building this rocket together.

It's been a while since I have updated this thread. We're continuing to make good progress on this rocket, and with Thunda less than a year away we need to push a little more. Here are parts #3 and #4 of the series. Part #5 should be out next week.

That's great! Very well done Congratulations on your L2!