Hydroptere-61 knots(70.15mph) Peak

Discussion in 'Multihulls' started by Doug Lord, Apr 1, 2011.

  1. Doug Lord
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    Doug Lord Flight Ready

  2. Doug Lord
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    Doug Lord Flight Ready

  3. Silver Raven
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    Silver Raven Senior Member

    Gooday you mob. Does anyone know how far forward the apparent wind gets moved when 'The Flying Machine' is in full flight ??? Compared to the direction that it's sailing - what direction is the wind blowing across the water ??? I'd like some 'smart' answers - not some Grade 1 answers - I already think I know those. ciao, james

    Thanks for posting Doug, jj
     
  4. cavalier mk2
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    cavalier mk2 Senior Member

    Grade 1 like looking at the wind waves coming aft of the beam and seeing how tight everything is sheeted? Cheers James, I've thought about these really fast boats for a inside passage round the Island and what is needed is car rally style navigators. "Hard port at the point, starboard of the island, slalom through the gill netters....."
     
  5. hump101
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    hump101 Senior Member

    For max speed the TWA will be 105 - 120 deg depending on windspeed, with AWA as low as 16 deg, increasing as windspeed increases.
     
  6. Corley
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    Corley epoxy coated

    There is an interview with Alain Thebault thats been posted on the Sailing Anarchy main page that should answer a lot of questions. My ADSL account has gone over data this month so I cant watch it.

    http://www.sailinganarchy.com/index_page1.php
     
  7. Doug Lord
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    Doug Lord Flight Ready

    Last edited: Sep 16, 2012
  8. Doug Lord
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    Doug Lord Flight Ready

    Hi-droptere!

    Just listened to the whole interview. Alain Thebault was hesitant to answer some questions-keeping more secrets than I thought they would. Both guys have heavy French accents which I have trouble unserstanding. I took notes and it is surprising how few they are for such a long interview:
    1) 44 knots(50.6mph!) peak in San Fran Bay,
    2) Do well upwind in 3M waves,
    3) Won't tell about pitch stability "secrets" or any details of the new electronic pitch control system,
    4) Alain wants to go for "the 65 knot barrier",
    5) They can change the angle of incidence of the main foils after stopping but not underway,
    6) Forward looking radar.sonar an ongoing project-not working too well at present,
    7) 2 or 3 on deck in conditions under 30 knots boat speed,
    8) Steering very intensive-no autopilot-keeping laminar flow on the foils is main task of helmasman who can't see the foils so has to learn this by "feel".No "feel"(feedback) in the steering system at all.
    9) Best angle upwind 90-100 degrees but can be improved by flying the windward foil.
    10) Alain still working on design of the new "round the world " version-should be complete in a few monts. Need an additional sponsor.
     
  9. Corley
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    Corley epoxy coated

  10. Doug Lord
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    Doug Lord Flight Ready

    Hydroptere!

    You're welcome. Watch the thing if you can-I may have missed something.....
     
  11. hump101
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    hump101 Senior Member

    I listened as well. My only comment on Doug's synopsis is that the comments on the radar were completely non-commital, rather than negative, so I wouldn't draw any conclusions as to its effectiveness. DCNS are a world leader in this technology, so I would be surprised if they don't have a functioning system, as the military units are very effective at much higher speeds than Hydroptere operates at.

    Certainly Hydroptere hasn't hit much, despite a lot of miles. They were joking about hitting a shark, saying maybe the sharks own systems were blocking their own, but like much of the interview it was very light-hearted and not necessarily fact.
     
  12. Doug Lord
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  13. Bruno Froes
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    Bruno Froes Flower Power Boat

    Lol haha Laird on foils, really Doug this a revolution!
     
  14. Corley
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  15. Doug Lord
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    Doug Lord Flight Ready

    Hydroptere

    Well, thats too bad. Thanks for the info....
     
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