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Who Wants Better Fins?

Discussion in 'Research & Development' started by TECreation, Oct 19, 2017.

What are the top 3 requirements for a great swim fin?

  1. Low price

    10.4%
  2. Low ankle stress

    7.8%
  3. Low effort

    13.0%
  4. Low leg stress

    22.1%
  5. Hign top speed

    6.5%
  6. Durability

    29.9%
  7. Ability to back up

    33.8%
  8. Frog kick ability

    51.9%
  9. Power

    54.5%
  10. Maneuverability

    59.7%
Multiple votes are allowed.
  1. TECreation

    TECreation ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Orlando FL
    96
    24
    You got that right. I thought it was all about how much time we can STAY underwater. Ease of speed translates to breathing less to go slow. - More time to enjoy doing what you love most.
     
    undrwater likes this.
  2. Umuntu

    Umuntu Divemaster

    # of Dives: I just don't log dives
    Location: Traveller
    804
    483

    There are reproductions of the jet fin design made in monprene (the same stuff as the seawing nova) which are much lighter than the "jet fin"
     
  3. TECreation

    TECreation ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Orlando FL
    96
    24
    It looks like reverse is a hot item. Here is what Judy, a senior fish identifier for REEF who tested the maneuverability of the MaxAir swim fin prototypes at Blue Heron Bridge had to say.
     
  4. cburgert

    cburgert Contributor

    # of Dives: 25 - 49
    Location: Eastern Pennsylvania
    195
    63
    Nova Fins
     
  5. Scott

    Scott Technical Instructor

    # of Dives: 2,500 - 4,999
    Location: Salt Lake City, Utah
    2,513
    837
  6. mdb

    mdb ScubaBoard Sponsor ScubaBoard Sponsor

    5,739
    4,377
    IMHO:

    Best split fin, Apollo bio-fins.

    Best paddle fin, Dive Rite XT.

    Just a biased personal opinion.

    I still have my original pair of Jet fins, Mares Power Plana, Mares Quattro, Original Force Fins and
    others.

    Choose the fin for the dive at hand.

    It is good to see new fins being introduced.

    For me, my current fav is the Apollo XT with spring strap, allows for a wide kick, a back kick and
    lots of power and propulsion.

    Just personal, of course, everyone has their own favorite and opinions are always interesting.
     
  7. kelemvor

    kelemvor Big Fleshy Monster ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Largo, FL USA
    7,116
    4,184
    I'd like to try a pair of those. Their appearance is almost comical, and I'm sure I'd have to defend myself on every boat ride...
     
  8. northernone

    northernone Contributor Rest in Peace ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Currently: Cozumel, from Canada
    3,792
    3,411
    Unfortunately this video seems to demonstrate exactly how insufficient this design is for the technical dive community or anyone interested in control underwater. They appear thin, floppy and uncontrollable in the video.

    Might be significant to your marketing to film someone demonstrating their potential better unless the observation is correct. In the video they appear to be entirely insufficient for reverse or precision motion.

    They may be fine for racing in straight lines or tug of war but please clarify their suitability for the typical kinds of diving. I'm not seeing it.

    Regards,
    Cameron
     
  9. Sam Miller III

    Sam Miller III Scuba Legend Scuba Legend

    # of Dives: 5,000 - ∞
    Location: CALIFORNIA: Where recreational diving began!
    5,066
    3,936
    Way back when Commander Luis de Corlieu developed the world's first successful commercial fins he described the action of a fin related to the "Law of Cubes."

    Based on "the discontinuity of impulsion destroys the yielding power efficiency of a propulsion device"--what ever that means???

    As a fin expert can you clarify the Law Of Cubes ? Especially as related to fin action

    Sam Miller,111
     
    Last edited: Oct 21, 2017
    northernone likes this.
  10. Sam Miller III

    Sam Miller III Scuba Legend Scuba Legend

    # of Dives: 5,000 - ∞
    Location: CALIFORNIA: Where recreational diving began!
    5,066
    3,936
    My post from May 27, 2011-- maybe of some interest for the historical factor

    Subject: Fins

    Some time ago there was a thread on fins. A gentleman from Italy came on stong and the best I could comprehend his post he gave Italy and their designers/ engineers credit for the swim swim--Nonsence!


    Many years ago I became interested in recreational diving fins, so for approximately 15 to 20 years I researched the history of fins and developed a very large file on the subject, This research resulted in a much abridged six page article.


    Therefore, I would invite all of you to read the US Historical Diving Society journal, 1994, "History of fins." HDS #3,#4 & #5.


    A very short history of fin development in the US and the world is as follows;


    1868 Havlor Olsen "Fin Sandals for the feet." (US)

    1932 Commander Luis de Corlieu "Swimming propellers" (aka Fins) (France)
    1933 European patent
    1937 US patent
    *** Based on "the discontinuity of impulsion destroys the yielding power efficiency of a propulsion device"--what ever that means???




    1938 Owen Churchill discovers Swimming propellers in Tahiti
    1939 Churchhill & de Corlieu enter in to a contract to produce Swimming propellers
    1940 Owen Churchill produces design patent and a improvement patent (US)
    1940 Churchill produces 946 pairs of "Swim Fins"

    1945 Pop Romano's Sea Net company produces "FROG FEET" (US)

    1947 C.H. Wilen produces "Swimming tales" (Italy)


    1952 Art Brown produces "Duck Feet" Spearfisherman Company (US)



    1965 George Beauchat US patent for Jet fins (France)

    (then Rockets -US Divers; 707 - Sportsways etc)

    Canany one explain the

    "the discontinuity of impulsion destroys the yielding power efficiency of a propulsion device"

    SDM
     
    Last edited: Oct 21, 2017
    northernone likes this.

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