What couldn’t it do?
They weren’t much of a glider.
“They werent much of a glider.”
Actually, the F-4 wasn’t all that bad. A Cessna has about a 500 foot per minute glide decent rate at 65 knots, which gives it a 500 foot per mile glide ratio. An F-4 is just half that at 1000 foot per mile glide ratio. Not all that bad, really.
LOL - yeah, some of the old timers would say that the F4 was proof that with a big enough engine, you could make a brick fly.