Rocket car v2
This is my second rocket car, designed with Google Sketchup. The image below is additional rendered with Inkscape (also freeware):
All wheels will be ball bearing mounted:
The front fins should increase the surface pressure of the front wheel at higher velocity.
The rocket car will be propelled by four C6-0 model rocket motors, technical data listed below:
Total Impulse: 8.82 newton-seconds
Peak Thrust: 14.09 newtons
Burn Time: 1.86 seconds
Average Thrust: 4.74 newtons
Propellant Mass: 10.8 grams
A FlyCamOne eco V2 will be added, pivotable by a micro servo. The camera weighs only 17g. Start/stop, mode and 180°Rec-Flip can be controlled by a servo signal.
Construction work details...
and the finished rocket car:
Due to the bearings the rocket car runs very smoothly. It rolls a few meters on even surface if you give it a love tap.
Small update. Mounted the servo for the camera, the battery, launch wires and luster terminal.
Igniter test with connected control board:
Video to jpg converter are really cool. You can study motion sequences.
It appeared that not all 4 igniters started to burn at the same time. These cheap igniters are not made for simultaneous ignition.
Controller board (Picaxe 08-M) and RC ignition are working now. Camera mounted on the servo.
Rocket car finished and ready to launch. Stay tuned for the video...