Further to my post above, I think the helicopter pad was here, where our 4x4 is parked. It is just off to the east of the northern end of the runway, in a wide cleared area linked to the threshold by a very rough track, too rough to taxy but good enough for a Landrover.
By the way, at both ends of the runway the bulldozer has just left high piles of surface rock, as if it was not quite finished, and the northern end curves noticeably to the west. I wonder why? Anyone remember that?
Laurence