J21 Explained
J21 or J-21 may refer to:
Vehicles
Aircraft
- Junkers J 21, a German reconnaissance aircraft
- SAAB J 21, a Swedish fighter
- Shenyang J-21, a Chinese prototype fighter
- Soko J-21 Jastreb, a Yugoslav light attack aircraft
Locomotives
- LNER Class J21, a British steam locomotive class
Ships
- , a Bangor-class minesweeper of the Royal Navy and Royal Canadian Navy
- , an Östergötland-class destroyer of the Swedish Navy
- , a survey ship of the Indian Navy
Other uses
