I
would guess the A-whatevers were originally A-7's and later (almost
simultaneously) the A-10's. We had a training unit for A-7's in
Tucson, then the Myrtle Beach AFB closing moved the A-10's there.
Oh, and dont forget those F-105's.
The A-10's were here WAY before Myrtle Beach closed. I spent 10
years in an A-10 squadron.