I landed the first helicopter on the newly installed Wolf Rock helipad on 11 September 1973, a Bristow 206A, G-AWMK, based in Battersea. Imagine my surprise to find the foghorn sticking up through the helideck!! It wasn't there during shore trials and nobody told me about it before leaving Penzance! Fortunately enough room for the 206 and I believe the offending article was quickly removed.