It is off, but I corrected it in the next sentence.
ke = mv2. This is 10gw not 100.
Then I used a factor of 50 in the next sentence. 10gj divided by 300mpa tensile strength of rivets is 30. So I said 50, it doesn't matter.
A plane changes velocity every 90 degrees in a 360 turn. So that's 4 times. A 10 meter object turning 100 m/s is 100 turns or 100/4 = 25 "turns". I rounded this to 20 and got 7000 degrees.
Now you'll object to this generically without proving fringes point.
7000/50=140, so we can turn 140 degrees at mach 3. Then realistic considerations make this much less. After that turn the plane fails structurally.