desc - dire
- descend
- descending
- descending cloud
- descending flight
- descent
- descent angle
- descent clearance
- descent engine
- descent module
- descent rate
- descent trajectory
- descent vehicle
- descent velocity
- description
- desert climate
- design
- design accuracy
- design airspeed
- design altitude
- design altitude of nozzle
- design ceiling
- design characteristic
- design cruising altitude
- design cruising speed
- design data
- design diving speed
- design effort
- design factor
- design fault
- design features
- design flap speed
- design flight weight
- design landing mass
- design landing weight
- design manoeuvring speed
- design maximum mass
- design objectives
- design office
- design rough air speed
- design rule
