On Thursday, May 31, 2018 at 12:48:16 PM UTC-5, kirk.stant wrote:
All three of our towplanes have unique ATC assigned (by letter) squawks, to be used when actively towing gliders.

Transponder-equipped private gliders use the standard 1202 code.

Kirk
SLSA

Correction Kirk SLSA only has 2 towplanes...