Sigurd Haanes was a Norwegian ski jumper

Ski jumping

Ski jumping is a sport in which skiers go down a take-off ramp, jump and attempt to land as far as possible down the hill below. In addition to the length of the jump, judges give points for style. The skis used for ski jumping are wide and long...

 and pilot.

He was born in Oslo

Oslo

Oslo is a municipality, as well as the capital and most populous city in Norway. As a municipality , it was established on 1 January 1838. Founded around 1048 by King Harald III of Norway, the city was largely destroyed by fire in 1624. The city was moved under the reign of Denmark–Norway's King...

 as the son of Thorgny Haanes and his wife Hedvig Kristine Clausen. He was the brother of tennis

Tennis

Tennis is a sport usually played between two players or between two teams of two players each . Each player uses a racket that is strung to strike a hollow rubber ball covered with felt over a net into the opponent's court. Tennis is an Olympic sport and is played at all levels of society at all...

 player Johan Haanes

Johan Haanes

Johan Clausen Haanes was a Norwegian tennis player, ski jumper, bandy player and track and field athlete. He was among Norway's best tennis players of all time.-Early and personal life:...

. Haanes placed fourth in ski jumping at the FIS Nordic World Ski Championships 1937 in Chamonix

Chamonix

Chamonix-Mont-Blanc or, more commonly, Chamonix is a commune in the Haute-Savoie département in the Rhône-Alpes region in south-eastern France. It was the site of the 1924 Winter Olympics, the first Winter Olympics...

. He was the record holder of the Holmenkollen ski jump

Holmenkollen ski jump

Holmenkollbakken is a large ski jumping hill located at Holmenkollen in Oslo, Norway. It has a hill size of HS134, a construction point of K-120, and a capacity for 30,000 spectators. Holmenkollen has hosted the Holmenkollen Ski Festival since 1892, which since 1980 have been part of the FIS Ski...

 in 1940. Following the German invasion of Norway in 1940

Operation Weserübung

Operation Weserübung was the code name for Germany's assault on Denmark and Norway during the Second World War and the opening operation of the Norwegian Campaign...

 he participated in the fighting during the Norwegian Campaign

Norwegian Campaign

The Norwegian Campaign was a military campaign that was fought in Norway during the Second World War between the Allies and Germany, after the latter's invasion of the country. In April 1940, the United Kingdom and France came to Norway's aid with an expeditionary force...

 as member of a ski company. He later travelled to the United Kingdom and enrolled in the Air Force where he became a pilot. He died in an aircraft accident in Calverley

Calverley

Calverley is a village in the City of Leeds metropolitan borough in West Yorkshire, England, on the A657 road, midway between Leeds city centre and Bradford...

in 1943.