main plane

plane of rotation / tip path plane

plane-to-plane communication

tip path plane / plane of rotation

main defense area (line) / main defensive position

main tank/ main fuel tank

main gear box / main rotor transmission

main rotor transmission / main gear box

main-rotor head / main-rotor hub

main-rotor hub / main-rotor head

attack plane

diving plane

float-type plane

ground plane antenna

lifting plane (lifting surface area)

pilotless reconnaissance plane

plane survey

plane table

spotter plane

vertical datum plane

vertical plane

doomsday plane / doomsday aircraft

adaptive focal plane array

ditch a plane

focal-plane array sensor

infrared focal plane array

long wavelength infrared focal plane array

staring focal plane-array IR seeker

plane rearming boat

best-fit optic Z-plane

converged fire plane

Z-plane

departure plane