Speechless Two, those were wonderful times. Don't you remember having the option. The lovely 61 could shut down one engine and then you apply the rotor brake to stop the rotors whilst the other engine kept running.
Rig crews on the heli-deck went to work with no pressure, and you had the knowledge that releasing the rotor brake brought back all those hydraulic and gearbox systems to get you home.
One day the'll build a helicopter like that again.