At the FOB at Bessbrook in the mid 70s a loaded Puma approached the LZ. There was a Scout and a Sioux rotors running on the small pads in front of the main pad the Puma was going for. IA with SOPs the Puma transmitted his arrival for the benefit of the two helis burning and turning.
The Puma landed. The Sioux exited stage left upside down and a frantic army pilot entered stage right from the Ops hut.