-byt - adap
- -byte
- -mn
- 1/2 system
- 100-percent penetrated weld
- 1:1 impinging-streams injector
- 2-burn Hohman transfer
- 2:1 impinging-streams injector
- 4th stage adapter
- a band
- a converter
- a-bomb warhead
- a-head missile
- a-proof
- a.c. power panel
- a.c.-digital converter
- AA rocket
- AADSF
- AARS
- AAU
- AB
- abandon connection
- abdicating
- abeam direction
- abend
- aberration
- aberrations in balance
- Abisco Scientific Research Station
- ABL
- ablate
- ablated weight
- ablating cover
- ablating material
- ablating nose cone
- ablating shell
- ablating shell structure
- ablating wall
- ablation
- ablation chamber
- ablation characteristic
- ablation cooling
