Guy Acheson wrote:
With a radio, we can talk. The tow pilot
can start each tow with, 'DDS, confirm that your canopy
is locked and spoilers are closed.'


This may work at a site that operates only one tow plane but it is a
safety hazard when multiple tow operations are in progress as at a
regional or national contest. The frequency should be kept clear so it
can be used to communicate abnormal or emergency situations.

The required procedure using SSA approved signals is - glider about to
launch confirm that you have completed your pre-takeoff checks and are
ready to launch by wagging your rudder. No radio use required.


Andy