This is for an upcoming AU, Nieuw Friesland, but I wanted to see what everyone thought of the modifications. Looking for an alternative to the F-4 phantom, the Hawker P.1121 was found to be attractive, but the air service wanted a large number of changes to the design, which considerably delayed entry. Changes included, M-61 Vulcan cannon, AIM-7 Sparrow and related avionics, canards, redesigned cockpit and canopy, and the American J-79 engine.
The resulting aircraft would form the backbone of the Luchtmacht for nearly three decades, going through many versions, including a specialized ground attack variant with a distinctive chisel nose.