Typerated wrote
You sure Neil? rounded fin?
Built with rounded fin and then converted to F2A with square fin.
XN728 at Farnborough, 1964
Photos: English Electric Lightning F2 Aircraft Pictures | Airliners.net
XN728; Under-carriage collapsed, 3-4-68; during repair converted to F 2A, returned to 92 Squadron as ‘F’, 24-6-69.
History F2/F2a
Image of XN728 taken in Germany during November 1969 at following link after conversion to F2A.
No92SquadronF2A | Spotting Group Gütersloh - Flugplatz von 1937 bis heute