Re: Pedant alert
There was a fair bit of blackmail about this. The "tin wing" could have been retrofitted to the existing Harrier (and Sea Harrier) fleet giving a faster, more manouverable aircraft with more lift capacity than the AV-8B, but the US Government would only buy their own AV-8B design, and would only purchase if the RAF also purchased it. Essentially we were blackmailed into buying an inferior USA design instead of our own better product. Note that the eventual AV-8B/GR5/GR7 is actually slower than the GR3/FRS1
Ah, US blackmail. Plus ça change.