What is referred to as torsion-stiffed leading edge?

Question

Quiz SPL - Sailplane Pilot License - Aircraft General Knowledge - What is referred to as torsion-stiffed leading edge?

QuizVDS · Accepted Answer

Both-side planked leading edge (from edge to cross-beam) to support torsion forces.

QuizVDS · Answer

The part of the main cross-beam to support torsion forces.

QuizVDS · Answer

Special shape of the leading edge.

QuizVDS · Answer

The point where the torsion moment on a wing begins to decrease.

SPL: What is referred to as torsion-stiffed leading edge?