As you have seen, I agree about how good the Arrow was, but I don't see where you are coming from with its manoeverability.
Fighter manoeverability was not a priority when the Arrow was developed, for anyone. What mattered, and what the Arrow would have excelled at, was
getting up as quickly as possible to intercept incoming formations of high speed bombers as early as possible, phenomenal acceleration and time to
height was the order of the day and the Arrow was very, very fast. Not only that but it promised to outrange the Lightning by a wide margin as well as
carrying more missiles, and all internally too.
Fighter agility only really came back into importance with the experience of Vietnam and shows in the design of the F-15 and F-16 of the late '60's
and early '70's.
The Arrow was a slender dart shape and built for acceleration and speed in the climb, not for turning. Rather like the Lightning and MiG 25 that
emerged either side of it.


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