Some info on the P-7A.
Flighcrew of five and a mission crew of five. Armament on 12 hardpoints and on the bay with a maximum load of 38,400lbs. 120 sonobuoys in pre-loaded packs fore and aft of wing with 38 inside the cabin for loading into pressurised chutes and up to 150 more on dense packs of eight hardpoints. Avionics included Texas Instruments APS-137(V) radar, Texas Instruments ASQ-81(V)1 MAD, FLIR, LLTV, dual INS, Doppler navigation, Litton ALR-77 ESM and cameras. Eninges were to be the 5,000ehp GE T407-GE-400 with total internal fuel capacity of 66,350lbs. Empty weight 73,750lbs and MTOW 171,000lbs. Max speed 473mph+ at 15,000ft, intial climb 2,890+ ft per min, service ceiling 28,000ft and radius 1,840 miles for a patrol of 5 hours 54 mins. Span 32051m and length 37.49m.
In 1989 it was thought a prototype would fly in late 1991 with service entry in 1994. Likely production numbers then looked like 125+ for the USN and 12 for West Germany.
Somehow given the length of time the P-3C has operated I think the P-7A might have made a useful type given the explosion of MPA sales since the 1990s even though European nations these days tend to sell off thier MPA fleets and shrink them down.
