D21
Appearance
D21, D.XXI, D.21 or D-21 may refer to:
- Aircraft
- Dewoitine D.21, a 1925 French open-cockpit, fixed-undercarriage monoplane fighter aircraft
- Fokker D.XXI, a 1935 Dutch fighter aircraft
- Lockheed D-21, a 1962 American Mach 3+ reconnaissance drone
- Ships
- HMS Shah (D21), a 1943 British Royal Navy escort aircraft carrier
- D21 Zulia, a Venezuelan Navy Nueva Esparta class destroyer
- Vehicles
- Allis-Chalmers D21, a tractor
- D21 Navara Hardbody, a Nissan Datsun pickup truck
and also :
- Arriflex D-21, a film-style digital motion picture camera
- Chondroma ICD-10 code
- DataSAAB D21, a computer from DataSAAB
- a D-21 Special, a guitar made by Martin Guitar
- Democracy 2.1, an electoral system that allows for multiple positive and negative votes
- D21 road (Croatia), a state road