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ASN Wikibase Occurrence # 123040
Last updated: 18 February 2018
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Date:12-JUN-2011
Time:15:58 LT
Type:Schempp-Hirth Ventus 2a
Owner/operator:Private
Registration: OH-920
C/n / msn: 120
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Airplane damage: Written off (damaged beyond repair)
Location:Renkajärvi, Hattula -   Finland
Phase: En route
Nature:Demo/Airshow/Display
Departure airport:EFRY
Destination airport:EFRY
Narrative:
The second glider involved in mid-air collision during the Finnish National gliding competition, 15 meter class.

Two planes were gliding towards Syrjäntaka TP from Forssa TP. Altitude was approximately 1400 meters and speed varied between 150-200 km/h. Immediately before the collision the pilots were flying almost the same track and were finally driven to positions where they could not see each other. The course of events has been studied from the GPS loggers and eyewitness statements.

At the time of collision OH-920 (below) was on a slightly ascending flightpath and the other glider's (above) flight path was slightly descending. Front fuselage of OH-920 hit the bottom of the other glider's front fuselage.

The other glider's control system was damaged and canopy was shattered in the collision. OH-920's fuselage, and later also wings were snapped.

The other pilot was able to use his parachute. OH-920 pilot was found on the ground approximately five meters from the fuselage. Safety harness buckle had been opened, but parachute ripcord handle had not been pulled.

FLARM was compulsory in the competition, but failed to help in this case. Manufacturer of the system wants to emphasize the importance of visual airspace monitoring.

Sources:

http://www.onnettomuustutkinta.fi/Etusivu/Tutkintaselostukset/Ilmailu/Ilmailu2011/1302672994222
http://www.iltalehti.fi/uutiset/2011061213879823_uu.shtml
http://www.rayskala.fi/sm2011/index


Revision history:

Date/timeContributorUpdates
13-Jun-2011 00:52 bubu Added
13-Jun-2011 01:11 FLYINGBROTHER1 Updated [Time, Aircraft type, Other fatalities, Damage, Narrative]
13-Jun-2011 04:09 193.166.21.102 Updated [Narrative]
13-Jun-2011 05:30 Goofy Updated [Narrative]
13-Jun-2011 11:27 harro Updated [Narrative]
14-Jun-2011 01:08 xxxxx Updated [Operator]
04-Nov-2011 09:35 88.112.42.163 Updated [Source, Narrative]
04-Nov-2011 09:42 88.112.42.163 Updated [Narrative]
06-Nov-2011 12:11 88.112.42.163 Updated [Narrative]

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