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Thanks to Design News for this Gadget Freak, in which one Joe Peck takes (model) rocket science down to watery depths.
Editor's Note: Please read the safety instructions in the build instructions document carefully!
We quote:
Parts ListEditor's Note: Please read the safety instructions in the build instructions document carefully!
We quote:
"Joe Peck has extended the pursuit of realism in model rocketry to the launch environment. Think Poseidon here - this rocket launches from underwater. Initially, it's sealed watertight from nose to nozzle.
Ignition is triggered by bringing a magnet close to a sensor contained in the upper section. The motor ignites, blowing off the bottom end cap and we have liftoff! If you're into model rocketry, here's your next challenge."
| Amt | Part Description |
| 1 | 9V battery connector |
| 1 | Magnetic Switch (normally open) |
| 1 | MOSFET, IRFU3704Z |
| 1 | 1 k ohm, 1/4W resistor |
Additional parts required
Receptade (2 position)
Magnet
9V NiCad battery
Download the build instructions for Joe's model rocketry (Word file)
You can also watch a video of Joe's work
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