That was Red Dean.
Red Dean and Red Hebe where based on the same missile body from Vickers.
However Red Dean was to use a PD and Red Hebe a CW SARH guidance. I understand both where to then, at around 4nm from target, switch to ARH (active homing) using a X-band set onboard the missile (the same as was to be used on Green Cheese), and that is the heart of the technical problems Vickers had with the project. Switching from SARH to ARH, this and arguments over weather the missile needed to be locked on before launch.
Dummy rounds where flown on a Canberra, but not on the wingtip, not sure how far they got with it all in testing.
Industry was effectively of one voice that the 16ft long 1,330lb missile was too large and draggy. Under this pressure Vickers did sketch a scaled down version, at 675lb in weight. Its that scaled weapon you can see on the wingtips of the P1103 model Camn had in his office, pictured in Tony Butlers book. Its roughly 13-14ft long.
All this was the product of Red Hawk, an ealier attempt to produce a all-aspect missile.