Wow! That's an impressive image. Thanks for sharing.
Unless I am mistaken, I believe the C-130 is the only
tanker-capable fixed-wing aircraft able to fly slow enough to
refuel helicopters. The C-130 in the image looks like it's flying
barely above stall speed, judging from the flaps deployed.
I'd like to see them try that with a KC-135 tanker. 
