[tanknetter]

Pratt & Whitney developed the PW1120 engine, essentially a derivative of the F100 engine, specifically for this application; when tested by the Israelis on a modified F-4E, the PW1120-powered plane offered a major leap up in performance compared to the J79-powered F-4E

Yup, that was the Kurnass 2000 iirc. But I thought that there was a stillborn engine upgrade effort that the Germans were trying for their F model Phantoms.

That aside, I think in my earlier post the F404 engine upgrade effort I was recalling was the A-6F.

[RayChuang88]

I remember the A-6F, which was an A-6E with upgraded avionics, a modified wing, and two non-afterburning versions of the F404 engine. Pity the US Navy didn’t adopt the plane, because that would have extended the life of the A-6 well into the 21st Century.