It was XV277, which was a preproduction Harrier used as testbed.
Technically it’s a GR.1 or P.1127, but had airframe modifications to test the aerodynamic changes proposed for Sea Harrier and for the GR.3. It was also used for Martel trials.
This is what it looked like before it was remodelled:
Spoiler
And how it looks now at Scotland’s National Museum of Flight
Tbh I would love this thing to come to the game as a premium @ Rank 6, so we can have a unique, premium Harrier replacement for the GR.1.
With AIM 9Gs, Blue Fox and premium bonuses, ooh * chef’s kiss * also It would be like the other 9.7 Harriers it wouldn’t be op just a good Rank 6 premium for britain, martel or not
I think your forgetting the a10c is the same br as it now lol, according to gaijin an a10 (with hmd) requires 9ms for it to be even able to face a sea harrier. You think they have an Argentinian dev that just spends his entire time ensuring harrier players are always facing realistic threats.