Hello T-21

There are 4 types of Night Fighter nose.

The NF.II version is the standard fighter shape with the arrowhead aerials mounted centrally.

The Intuder version of the FB.6 has the standard fighter shape nose with the small “thimble” ASH radome.

The NF.XII nightfighter has a slightly conical nose of a size half way between the standard fighter shape and the large NF.30 radome.

The NF.30 has the largest nose with the plastic radome (postwar these were sometimes left unpainted).

Hope this helps.