What is the diffeence between spin and spiral dive?

Question

Question Quiz SPL - Sailplane Pilot License - Principles of Flight (Aeroplane)

QuizVDS · Accepted Answer

Spin: stall at inner wing, speed constant; Spiral dive: airflow at both wings, speed increasing rapidly

QuizVDS · Answer

Spin: stall at inner wing, speed increasing rapidly; Spiral dive: airflow at both wings, speed constant

QuizVDS · Answer

Spin: stall at outer wing, speed constant; Spiral dive: airflow at both wings, speed increasing rapidly

QuizVDS · Answer

Spin: stall at outer wing, speed increasing rapidly; Spiral dive: airflow at both wings, speed constant

Id 656 - SPL - What is the diffeence between spin and spiral dive?