In article , Graham Hodgson wrote:
What aircraft did you do your silver distance qualifying
50k flight in?

I did mine with a Ka-8. It was a straight distance to a goal flight. This
means an altitude gain of 2000m was required for 50km.

Today our youngsters do their 50km with a Discus. So they have to get about
1200m for 50km. That's ok, if they make an out and return flight.

Peter