I've flown in the Bell civilian version of the twin-engine "Huey" (a Bell 212, IIRC) numerous times, but never in a real UH-1.
My question is based on what you see in the movies, where the pilot jumps in, starts flipping switches, and gets airborne really quick,
BUT, since we all know Hollyweird tends to take great liberties with real-world things, I know it's probably not anywhere near realistic.
So, assuming your bird is sitting there in good flying weather, full of fuel and fluids, and is 100% preflight checked, and tagged as "good to go" by a Crew Chief you really trust, and you have clearance for immediate take-off, just how fast could you get airborne?
This is a real, "somebody's life depends on it" scenario, where you roar up to your bird in a Jeep, jump in the bird, and start flipping switches even as you're buckling up and getting your helmet on.
When I was flying with the contractor pilots at Sea Launch, it was all extremely scripted and scheduled. They stroll out to the bird, climb in, buckle up, put their helmets on and plug-in, and run through their preflight checklist, and then start waking up the bird. They always had enough time that they'd sit on the pad, engines idling, and rotors turning, until they received clearance, and then they'd power up and lift off.
It probably took about 30 minutes from when they got in until they lifted off. Safety was tantamount with everything these guys did, and they were very good pilots, well experienced with off-shore operations, and landing on a moving, pitching, rolling platform.
So, assuming things are damn near perfect before you launch, how fast can you get airborne?