Whilst not a "copycat", the Dacor Turbo II Fins I got last year were somewhat inspired by the Jet Fin. Looking forward to diving them as soon as I can. Are they the greatest fins?, or even the best I have?...nope. I just look forward to diving them again because where I live no one else has a pair, or probably wants a pair, except me. Mark
New Diver who sees diving with vintage gear a fun hazard, not a safety hazard. "I just want to dive my Scubair 300 and not get hassled by The Man!" USN 1989-1993.
The top, right one behind he Beuchat full-foot jet fin looks a lot like my Lightning Jet Fin. The one below is obviously the Rocket Fin by U.S. Divers Company. The one below the Rocket fin is the original Scubapro jet fin, and the one below that is a Japanese copy. The Japanese now have a jet fin called the REVO, but that is made by Scubapro Japan, while the one pictured is a jet fin copy, probably from an earlier era.
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PS, I just counted the years on the fingers of my right hand, and that entry will be fifty years ago this coming November! WOW!