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 from PART66Online
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.
M
Marcocom asked · 8 Jan 2019
what is tuck-under?
Community Comments (1)
V
vale
22 Nov 2020
it's the tendency to pitch down near critical mach speed i think
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