Discussion about deployment systems including altimeters, timers, air speed flaps, servo systems, and chemical reactions.
- WRA2 Member
- Posts: 116
- Joined: Fri Feb 10, 2017 9:36 am
i am from china. english is not good. two video.
tomy timer deployment parachutes China Water Rocket Parachute double bottle (QQ:1657833460)
tomy timer deployment parachutes China Water Rocket Parachute Single bottle (QQ:1657833460)
I come from China, do not understand English, your information I use the translation software to view. I like water rockets, technology is the same, I hope we can become friends.