Power-Split Device, the planetary gear set which divides power between the ICE and the two electric motor-generators, also functions as the continuously-variable transmission.
Plastic Sphere Dispenser. Device installed, but jettisonable, in a helicopter, which injects glycol into a plastic sphere containing potassium permanganate, which is then expelled from the machine and aircraft. This produces an exothermic reaction resulting in ignition of fuels on the ground for prescribed or wildland fire applications. see also: Aerial Ignition Device; Delayed Aerial Ignition Devices; Helitorch; Ping-Pong Ball System
a tool, device or weapon intended to prevent, discourage, interrupt