Super F
206 96 gals ( if memory serves me right with range extender, sold my 206 's for 500's years ago ) at 25 gals an hour that is say 4 hours at 110 kts range approx 420 nm
500 72 gals ( wit fargo tank) at 25 gals hour say 3 hours at 135 kts equals 405 nm
Not much in it really, but 15 nm is still a long swim !!!!
As for R66 yes its lighter but at the expense of strutual integrity ?
