ASN Wikibase Occurrence # 213978
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| Date: | Sunday 8 May 1977 |
| Time: | 15:00 |
| Type: |  LET L-13 Blanik |
| Owner/operator: | |
| Registration: | VH-GPT |
| MSN: | |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Northam, WA -
 Australia
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | YNTM |
| YNTM | |
| Investigating agency: | BASI |
| Confidence Rating: |  Accident investigation report completed and information captured |
This was the third dual training flight made by the two occupants of the glider on this day. The exercises concentrated on circuit and landing practice for the student. It was intended on this occasion to make an approach and landing without the use of the landing flaps. The weather was fine with a light and variable surface wind. The glider was launched from the 1216 metre long airstrip by aero tow into the south-east and was towed to a height of about 1600 feet. After the tow was released the student carried out two turns and then positioned the glider for the circuit and a landing to the south-east. The flaps were not extended and the student misjudged the approach. The dive brakes were fully deployed but the approach was high and the glider passed over the airstrip threshold at a height of approximately 250 feet. The instructor took over control of the glider and retracted the dive brakes. She intended to make a left hand orbit and re-position the glider near the airstrip threshold at a lower height and in a better position for landing. The turn was commenced at about 200 feet above the strip with an airspeed of 50 knots. After turning through about 180 degrees at a fairly steep angle of bank, the glider stalled. The nose and the left wing dropped and the aircraft dived steeply and struck the ground amongst trees on the bank of a nearby river. The performance of the Blanik L13 glider is such that a 360 degree turn can be performed in normal circumstances at any angle of bank up to at least 60 degrees with a height loss of less than 200 feet. A successful landing straight ahead could have been completed within the available strip from the position at which the turn was commenced.
Accident investigation:
 |
|
Sources:
https://www.atsb.gov.au/publications/investigation_reports/1977/aair/197705686/
https://www.atsb.gov.au/media/5226266/197705686.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Aug-2018 22:23 | Pineapple | Added |
Corrections or additions? ... Edit this accident description
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