SC.5/13
This was an increased performance Belfast, both in conventional transport and maritime patrol variants. MTOW increased to 250,000 lbs, with a maximum payload of 75,000 lbs. More important was the addition of a wing center section tank which increased maximum fuel to 96,000 lbs.
The primary increase in performance was derived from an increase in prop size to 18 ft from the original 16 ft.
The maritime patrol variant of the Shorts Belfast SC.5/13 replaced the rear loading ramp with a weapons bay - similar to proposed MPA variant of the A400M and various MPA proposals of the C-130, C-141 and C-160 that have periodically cropped up
I have never found any drawings or illustrations of the SC.5/13.
SC.5/15B
This is a tactical STOL variant of the Belfast, with the same increased diameter props as the SC.5/13, but uprated(?) Rolls Royce Tyne RTy.34 turboprops. The landing gear would have been upgraded with low pressure tires and a braking parachute would have been added!
MTOW increased to 240,000lbs with a maximum payload of 67,500 lbs, but the center section fuel tank was apparently omitted.
SC.5/16
This was the strategic counterpart to the tactical /15B with same engines and 18ft props. MTOW increased to 285,000lbs, with a stunning 115,000lbs of fuel, resulting from the SC.5/13's center section fuel tank and addtional tanking in extended landing gear fairings. The ferry range was 7,350 statute miles.
Again, I have no images or drawings of this variant.
