Change the last sentenceof 101.3.2__Stroke to read " Both arms shall be brought forward in an overarm manner and pulled back simultaneously". .
Change the second sentence of 101.3.3__Kick to read, "A scissors kicking movement is never permitted in the Butterfly Stroke".
Since these two proposed changes are being proposed only because of the widely differing interpretation encountered in the last couple of years, they can be incorporated without further ado other than the agreement of the rules committees before the meet, whether it be tomorrow, next month, or next year.
Skip,
To your list of “inventors” of the butterfly include David Armbruster, swimming coach at the University of Iowa,
From en.wikipedia.org/.../Butterfly_stroke
History
The butterfly style evolved from the breaststroke. David Armbruster, swimming coach at the University of Iowa, researched the breaststroke, especially considering the problem of drag due to the underwater recovery. In 1934 Armbruster refined a method to bring the arms forward over the water in a breaststroke. He called this style "butterfly". While the butterfly was difficult, it brought a great improvement in speed. One year later, in 1935, Jack Sieg, a swimmer also from the University of Iowa, developed a kick technique involving swimming on his side and beating his legs in unison, similar to a fish tail, and then modified the technique afterward to swim it face down. He called this style Dolphin fishtail kick. Armbruster and Sieg quickly found that combining these techniques created a very fast swimming style consisting of butterfly arms with two dolphin kicks per cycle. Currently, the entire style is referred to as butterfly, but sometimes still also called dolphin, especially when referring to the dolphin kick.
This new style was considerably faster than a regular breaststroke. Using this technique Sieg swam 100 yards in 1:00.2. However the dolphin fishtail kick violated the rules of the FINA and was not allowed. Therefore, the butterfly arms with a breaststroke kick were used by a few swimmers in the 1936 Summer Olympics in Berlin for the breaststroke competitions. In 1938, almost every breaststroke swimmer was using this butterfly style, yet this stroke was considered a variant of the breaststroke until 1952, when it was accepted as a separate style with a set of rules by the FINA. The 1956 Summer Olympics were the first Olympic games where the butterfly was swum as a separate competition, 100 m (women) and 200 m (men).
Skip,
To your list of “inventors” of the butterfly include David Armbruster, swimming coach at the University of Iowa,
From en.wikipedia.org/.../Butterfly_stroke
History
The butterfly style evolved from the breaststroke. David Armbruster, swimming coach at the University of Iowa, researched the breaststroke, especially considering the problem of drag due to the underwater recovery. In 1934 Armbruster refined a method to bring the arms forward over the water in a breaststroke. He called this style "butterfly". While the butterfly was difficult, it brought a great improvement in speed. One year later, in 1935, Jack Sieg, a swimmer also from the University of Iowa, developed a kick technique involving swimming on his side and beating his legs in unison, similar to a fish tail, and then modified the technique afterward to swim it face down. He called this style Dolphin fishtail kick. Armbruster and Sieg quickly found that combining these techniques created a very fast swimming style consisting of butterfly arms with two dolphin kicks per cycle. Currently, the entire style is referred to as butterfly, but sometimes still also called dolphin, especially when referring to the dolphin kick.
This new style was considerably faster than a regular breaststroke. Using this technique Sieg swam 100 yards in 1:00.2. However the dolphin fishtail kick violated the rules of the FINA and was not allowed. Therefore, the butterfly arms with a breaststroke kick were used by a few swimmers in the 1936 Summer Olympics in Berlin for the breaststroke competitions. In 1938, almost every breaststroke swimmer was using this butterfly style, yet this stroke was considered a variant of the breaststroke until 1952, when it was accepted as a separate style with a set of rules by the FINA. The 1956 Summer Olympics were the first Olympic games where the butterfly was swum as a separate competition, 100 m (women) and 200 m (men).
