The ban was because a very skilled pilot could cloud fly without gyro
instruments, just using a Bohli compass. Not banned in the UK because we
allow cloud flying.

At 03:09 31 October 2015, AS wrote:
On Thursday, October 29, 2015 at 9:03:35 PM UTC-4,
wrote:
What is a reasonable value of a Bohli compass? does not appear to have
ever been installed
Does it still have value?

r/Jim

Weren't they once banned from use in contests?
Uli