Radar query......

[Mossie]

You don't need to replace everything due to multi-mode radar, hence the slightly larger nose of the P.71.

[Captain Canada]

It's always amazed me how small the front end of the Jag is.... like the pilots feet are going to stick out !

[Weaver]

You don't need to replace everything due to multi-mode radar, hence the slightly larger nose of the P.71.

I suspect the naval P.71 would have had radar plus doppler nav (like a SHAR) while the Air Force version would have had laser plus inertial nav (like a Jag). Multi-mode radar doesn't do the navigating unfortunately, and doppler is both much smaller than inertial in terms of "black boxage", and is easier to use when operating from a moving ship that doesn't provide a good reference platform for setting the inertial system up. However doppler also doesn't provide the precision of inertial when used from a land base and it's an active emitter which non-ideal.

There's a cutaway of the Jaguar here: http://zarco-macross.wdfiles.com/local--files/wiki:sepecat-jaguar/124-1.jpg Look how much non-disposable hardware is located between the cockpit and the laser bay....