"Keith Willshaw" wrote in message
...

There were airframe differences, the nose on the navy version was
8ft 6" shorter and it had 3 feet 6 inch extended wingtips. The F-111B
was grossly overweight (78,000 lbs when the navy had specified an
upper weight limit of 55,000 lbs) and was seriously underpowered.


Yes, they weren't exactly alike. The USAF versions had differences among
them as well, the FB-111A/F-111G had a longer wing as did the Australian
F-111C. The point was the USAF and Navy versions were never intended to
perform the same mission in their respective services. The F-111B nose
could be shorter because the AN/AWG-9 radar and associated equipment used in
the Phoenix missile system required less space than AN/APQ-113 attack radar
and AN/APQ-110 terrain-following radar used to deliver air-to-ground stores.