Siegmund Mainka (born 4 July 1968) is a German

sailor A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship. The profession of the ...

from Berlin who competed in three Paralympics games winning gold in

2008 File:2008 Events Collage.png, From left, clockwise: Lehman Brothers went bankrupt following the Subprime mortgage crisis; Cyclone Nargis killed more than 138,000 in Myanmar; A scene from the opening ceremony of the 2008 Summer Olympics in Beijing ...

and silver medal in

2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...

in the

Sonar Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects on ...

Class. Both medals were achieved with skipper Jens Kroker and fellow crew member

Robert Prem Robert "Bobby" Prem (born 12 June 1957) is a German sailor from Berlin who competed in two Paralympics games, winning gold in 2008 and a silver medal in 2012 both times in the in sonar Sonar (sound navigation and ranging or sonic navigatio ...

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* * {{DEFAULTSORT:Mainka, Siegmund 1968 births Living people German disabled sportspeople German male sailors (sport) Paralympic sailors of Germany Paralympic medalists in sailing Paralympic gold medalists for Germany Paralympic silver medalists for Germany Sailors at the 2008 Summer Paralympics Sailors at the 2012 Summer Paralympics Sailors at the 2016 Summer Paralympics