Improvised Munitions Handbook (Improvised Explosive Devices or ...

3. Strip insulation from the ends of two connecting wires.
Attach one wire to each contact strip.
Note: If a soldering iron in available solder wires in
place.
4. Place contact strips over container so that the larger
contact is above the smaller with a very small clearance
between the two.
5. Securely tape contact strips to sides of
container.
How to Use
1. Connect the altimeter switch in an explosive circuit the same as any switch.
2. Place the explosive package on airplane. As the plane rises the air inside the container will expand.
This forces the plastic sheet against the contacts closing the firing circuit.
Note: The switch will not function in a pressurized cabin. It must be placed in some part of the
plane which will not be pressurized.