AA62, Sorry I had no input at all to the wing mounted pods.
I do have knowledge of the Ex Vulcan RWR ARI 18228/1 which went on Chinook, Puma and our SAR Sea Kings for FIMPA. I did have a hand in some avionic equipment installations on the K circa 1982 and W Mk2 (probably 1988) and a few special fits on the J when Airdrop was becoming more sophisticated than bits of cloth string and plywood.
I often wondered if the wing tip pods on the Herc were similar to those on the Nimrod Mk2. The ones we fitted to the R were different altogether.
Ken,
One thing that Marshalls were very good at was doing things very quickly. may not have been all that sanitary but worked. Cost vs Time vs performance. I think AA62 has already recounted earlier about the tanker and even the probe fits that were undertaken by Marshall in short order.