Our 76's had glass windscreens rather than the acrylic, a running take off or landing was desirable if loose stones were a problem, as we found out, shattered windscreen, big bucks.
The charlie model gunship in Vietnam was unable to hover when loaded for bear, not until the -11 engine was swapped for the -13, making it a mike model. The chaps were well practiced in hovering autos, hover taxi from the revetment to the runway until rotor bleed caused you to run out of pedal, chop throttle, land, get RPM back, repeat until runway made for running take off. Backseat crew might run alongside during take off to ease the load and jump on when a bit of speed was gained.