Typically, flight deck maintenance crews had a 45 minute turn around from the time the bird landed, was spotted (parked), and shut down until it had to launch again. That's the most time available to arm, fuel, fix any mechanical or electronics problems, align inertial navigation system and change out flight crews. A plane was literally mobbed by maintenance people, AOs and plane captains. Any delay in any activity and it didn't make the next mission. Failure to make a mission for any reason was serious. Birds were dependent upon each other for countermeasure protection, radar jamming, recon and fighter protection. It all had to work together, the whole was the sum of its parts.
At the peak of activity during Vietnam, flight crews exchanged places while the A/C was still turning and burning. Planes were hot refueled and armed without ever shutting down or being tied down. Really dangerous for maintenance personnel. Intakes are sucking up volumes of air, jet blast will knock you down and blow you or equipment over the side. Fuel can spill on the deck and catch fire from a passing huffer ( jet starter). Bombs can be inadvertently dropped, ordnance can be accidently fired. I've seen it all at one time or another. Mix all that up with A/C moving under jet power and prop planes turning, noise level so high that you can't hear a warning shout and A/C moving to the cats to launch.
A seriously dangerous place to work.