On Feb 15, 1:56 pm, Andy wrote:
On Feb 14, 9:59 pm, Mike the Strike wrote:

On Feb 14, 9:42 pm, Mike the Strike wrote:
We have had a collision between an aircraft and a sailplane whose
transponder was turned off "to save the batteries", so this isn't just
a theoretical problem.

The report I read said the transponder was not turned on because the
transponder installation was not certified. Did you hear different?

It is illegal to operate a transponder without current certification.

Andy

The report I read said the operator was not familiar with the
instruments and was concerned about battery drain. I don't know if
someone operating a ship not their own would even worry about
certification.

Mike