On Mar 31, 3:13*pm, VARR wrote:


"Although the Hawker was equipped with a traffic alert and collision
avoidance system (TCAS)-II capable of generating vertical resolution
(collision avoidance) advisories (RA), the glider's Mode C
transponder
was turned off (and, therefore, not detectable by the Hawker's
equipment) because the glider pilot wanted to reserve battery power
for radio use. "

Early reports on this accident indicated that the pilot had not turned
the transponder on because the installation had not been approved.
Anyone know which is true?

Andy