Tuck-under is caused by
- tip stall on a straight wing aircraft.
- tip stall on a swept wing aircraft.
- root stall on a swept wing aircraft.
Explanation
On a swept wing the airflow over the rearward-loaded root region reaches its critical Mach number first, and the resulting shock-induced separation and rearward shift of lift at the root produces the nose-down pitch known as tuck-under or Mach tuck. It is a root, swept-wing phenomenon rather than a straight-wing tip effect.
Marcocom asking:
what is tuck-under?
Community Comments (1)
V
vale Posts: 5 22.11.2020 / 15:59
it's the tendency to pitch down near critical mach speed i think
Please Sign In to post a comment.