Nice to see those boys did good.
Nigel,
Interesting thought about drumstock refuelling in flight. What physical arrangements were made to enable this, bearing in mind the practical difficulty?
I can visualise other practical difficulties, such as lack of room in the cabin and the heavy drums causing damage to the wet fit.
An SAR equipped aircraft tends to be very heavy compared to one in the ferry role. The HK GFS S-76s were weight limited in any event; it was the norm NOT to carry even full main tanks.