Happened to me few times in 190. Once a Spit was d8-9 behind, spraying at me. I lost right wingtip. His recoil slowed him down and I simply outran him, no speed penalty whatsoever.
On another occasion Niki took my wingtip in 190, I outdove it anyway, limped back home for 2 sectors and landed
The just 190 requires correct triming and some alt to work with in case of lost wingtip, and it can fly home. When landing, the speed is good to be higher than usual, for wing might drop.
In 109 I lost control every time I lost a wingtip. I did not try to cut power, however, enemies were still around. No matter how much alt and speed I had, or how much trim input I put, the 109 was lost. It just does violent roll which cannot be stopped.
On one occasion I shot whole wing off Niki. To the wingroot ! It kept flying for long time, however, what was witnessed by other players. I got the kill some 10 minutes later, when it tried to land.
Saw some P 51D fly without wingtips too.