Dundiggin,
It was a joint squadron operation (Op Agila, for the benefit of those who don't remember the Rhodesian Ceasefire of 1979-1980) and this was a "mixed squadron" crew.
Sorry to argue but only Archie Cook (not Scott) was 33 Sqn. I knew him quite well; we had been through IOT at Henlow and BFTS at Linton on Ouse at the same time.
Mike Smith and Bob Hodges were most definitely both 230 Sqn. I was on 230 at the time and also went to their funerals.
The aircraft height was likely to have been approximately 2 ft agl; it was determined that the rotor head hit a wire that was somewhat less than twenty feet agl. The rotor head on a Puma is approximately 16 feet up....
BTW, we must know each other - with your username I initially thought you might be a certain pilot of that era otherwise known as "Sp)nk trumpet"