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What does S/A stand for?

S/A stands for Safe/Arm

This definition appears frequently

See other definitions of S/A

Other Resources:
We have 222 other meanings of S/A in our Acronym Attic

Samples in periodicals archive:

[ILLUSTRATION OMITTED] Keep your feet off the launcher--If you use it as a ladder, the environmental protective cover connectors or the SAFE/ARM switch soon will be busted.
After moving the switches to the correct positions, using a flashlight and verifying the position, the pilot placed the safe/arm switch to arm.