No fatalities

4 Oct 2008: Let Blanik L-13 — Gardner, KS

Gardner, KS, United States

On 4 Oct 2008, a Let Blanik L-13 was involved in an aviation accident near Gardner, KS. No fatalities were reported. Investigators recorded the probable cause as: The pilot's decision to attempt a takeoff when the climb performance of the tow plane and the glider were inadequate. Contributing to the accident were the high density altitude and the terrain-induced turbulence. This summary draws on records from NTSB; 4 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A glider on a normal aero tow takeoff from a turf runway crashed into a fence after both the tow plane and glider pilot released the tow rope due to insufficient climb performance.

Accident Overview

A private pilot was conducting a normal aero tow takeoff in a glider from runway 21 at an airport with a 2,154-foot long turf surface. The tow plane pilot and the glider pilot both reported becoming airborne at approximately 40 knots. When it became obvious that the climb performance of both the glider and the tow plane was insufficient to accelerate or climb out of ground effect, both pilots released the tow rope at the end of the runway. Subsequently, the glider crashed into the fence at the end of runway 21.

Weather Conditions

Weather reported at the time of the accident included 10 miles visibility, clear skies, winds from 150° at 9 knots, a temperature of 74°F, and a dew point of 57°F. The density altitude was calculated as 2,260 feet.

Additional Reports

Other pilots familiar with the airport have reported that in crosswind operations, there is frequently induced turbulence from trees along the left side of the departure end of runway 21.

Contributing factors

PilotCapability exceededEffect on operation