It is hard to believe that F-15 can fly formation with Piper Cub.

http://www.pipercubforum.com/intercep.htm

Do F-15 fly by wire system prevent the aircraft from stalling at that low
speed? Last time I saw an aircraft with fly by wire system did such a
stunt, Airbus plowed right in to the forest at the end of the forest!

Emilio.