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Apnea diver with monofin

The monofin is a specially designed fin for fin swimmers and apnea divers . It is mainly used by deep divers, distance divers, orientation divers and butterfly swimmers as well as mermaiding . The sequence of movements is similar to that of whales or dolphins .

The fin has a propulsion surface 12 to 15 times larger than the human feet. The fin blade is usually made of glass fiber reinforced or carbon fiber reinforced plastic . In the middle of the front edge there is a foot section for both feet. This is made of rubber and is usually padded inside with soft neoprene .

The propulsion takes place through a repeated, very powerful beating wave movement. It starts below the breastbone and runs to the end of the fin. The upper body, including the arms, is stretched as hydrodynamically as possible in the swimming direction.

An experienced swimmer can sprint at speeds of over 3 to 4 m / s (10.8 to 14.4 km / h).

Web links

Commons : Monofins  - collection of images, videos and audio files

Individual evidence

  1. Herbert Gfrörer, Armin Süss: Fins . ( Memento of the original from December 14, 2010 in the Internet Archive ; PDF; 1.9 MB) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved September 10, 2012 @1@ 2Template: Webachiv / IABot /
  2. monofins . Optendrenk & Calinski GmbH, accessed on September 10, 2012