Longest recognised glider flight;
Free distance using up to 3 turn points : 3 009 km
Date of flight: 21/01/2003
Pilot: Klaus OHLMANN (Germany)
Course/place: Chapelco, Airport of San Martin de los Andes (Argentina)
Glider: Schempp-Hirth Nimbus 4 DM
Registered 'DKAHG'
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IIRC, it was only barely completed within legal daylight – a nail biting finish to get in before official night, which was (just) successful.
I don’t know if the Nimbus 4 DM used had navigation lights, but they are available on at least some gliders. The “M” means it is a motor glider and could be legally operated as a powered aeroplane (with limitations), though its design is optimised for gliding.
Chris N.