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The pilots were competing in a triangular navigation exercise and were in the vicinity of the final turning point. The aircraft were orbiting in a thermal when they collided at a height of about 3500 feet above the ground. Both aircraft became uncontrollable and the pilots parachuted to safety. The investigation established that both aircraft were orbitting to the right when they collided. Examination of the wreckage showed that the right wing of VH-GXY hit the left wing of VH-GGV. The impact was on the leading edge of each wing. About two metres of the wing of VH-GXY was severed, and about one metre of the wing of VH-GGV. Neither pilot had been aware of the presence of the other aircraft in the thermal.

Download Final Report
[ Download PDF: 23KB]
 
 
 
 
General details
Date: 20 January 1989 Investigation status: Completed 
Time: 1600 Investigation type: Occurrence Investigation 
Location:Tungamar (13 km SSW of Yarrawonga) Occurrence type:Airborne collision 
State: Victoria Occurrence class: Airspace 
Release date: 27 June 1989 Occurrence category: Accident 
Report status: Final Highest injury level: Serious 
 
Aircraft 1 details
Aircraft manufacturer: Glasflugel 
Aircraft model: 201 
Aircraft registration: VH-GGV 
Serial number: 574 
Type of operation: Gliding 
Damage to aircraft: Destroyed 
Departure point:Corowa NSW
Departure time:N/K
Destination:Corowa NSW
Aircraft 2 details
Aircraft manufacturer: Alexander Schleicher Segelflugzeugbau 
Aircraft model: ASW-15 
Aircraft registration: VH-GXY 
Serial number: 15030 
Type of operation: Gliding 
Damage to aircraft: Destroyed 
Departure point:Corowa NSW
 
 
 
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