P.28, based on the B.8 airframe with a PR.9 nose housing a 'blue parrot' radar, pilot has opening canopy from PR.9, nav has ejection seat, span reduced by six feet each side by clipping wingtips, 500 gal tip tanks fitted.
Engines were to be 11,250 lb st RA24s, or lower powered RA29s, giving more range. max weight was to be 55,996 lb,with 23,294 lb fuel and 8,000 lb weapon load. Fuel could be traded for increased weapons load. Target penetration speed was to be 500 kt IAS.

Imagine those wingtip pods replaced with the big rocket pods from the F-89.