dire - Dopp
- direct access
- direct access radar channel
- direct ascent
- direct broadcast satellite
- direct broadcasting satellite
- direct circuit
- direct current
- direct drive propeller
- direct earth-to-GEO ascent
- direct feedback
- direct flight
- direct maintenance costs
- direct operating costs
- direct readout satellite
- direct route fare
- direct speech circuit
- direct threat
- direct transit agreement
- direct transit area
- direct transit arrangement
- direct VOR/DME approach
- direct wave propagation
- direct-reading indicator
- direct-to-home satellite
- directed reference flight
- direction
- direction and guidance radar station PJIC
- direction finder
- direction finder antenna
- direction finding
- direction for landing
- direction indicator
- direction of approach
- direction of rotation
- direction of turn
- direction-finding station
- directional actuator
- directional aerial
- directional antenna
- directional control
