msouth

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Everything posted by msouth

  1. msouth

    Corsair 970

  2. Canting of rig might be good, but to make it practical and safe a differential sheeting system arranged on a track must be in place. Instead let the foil take the rig loads,
  3. Just as a reference, I was just reading the racing rules for cayak boats, they are open to use any build material but foil mounted on rudder is not allowed, this may be an indication that the drag is not an issue using rudder foil.
  4. In the T-35 case, make sure you use open mesh nets.
  5. A t-foil on the rudder may create some drag, but onthe other hand it can be placed so that it is surfing on the backwave crested by the main hull in lower speeds sah less than 9 knots, then it actually behaves like if the main hull was a bit longer in the waterline And move the deplacement speed up a bit.
  6. T35 =Sc30 in speed. My add on foil to the daggerboard end is not adding much strain, but also add lift even when daggerboard is not fully submerged, So it creates lift sailing fast with say 50 % or less dagger down
  7. First of all, stay away from monohulls they are too boring, I trailer a Catri , 8 x 8 m trimaran , 1200 kg trailer weight, I use a 2 wheel 1800 kg total weight trailer. The Catri fold like farrier and has seperate bathroom and seperate aft cabin, 1.89 m headroom. http://multihulls.org/?page_id=200&id=249.
  8. msouth

    Neutral Helm

    Take the wideness of the trimaran into the calculation, it will balance out as the force of the rig is not 90 deg to boat moving direction It is more forward in direction.
  9. msouth

    Trimaran Foiling Systems

    Just note that , flying is not a permament mode,there is always some assisted mode involved.
  10. msouth

    Trimaran Foiling Systems

    The foil system is based on arrow configuration, reason is - well try throw a dart arrow and watch how instabile it gets.... if you remove the rear wings... .
  11. msouth

    Trimaran Foiling Systems

    There are many more, SeaCart 26, C-foil Catri trimarans, 5 foil / and T-foil FARRIER F-85, C-foil Windrider T-foil Hydroptere / foil, T rudder
  12. msouth

    TF 10 Foiling Trimaran

    DOA = Dead On Arrival ?
  13. msouth

    Foiling question - (I know...)

    Are there anybody out there that still do not like foils ?
  14. msouth

    TF 10 Foiling Trimaran

    Will $ 300.000 buy it ?
  15. msouth

    TF 10 Foiling Trimaran

    NICE, and nice spec, just one little number missing called price !
  16. msouth

    Foiling question - (I know...)

    I can confirm that it is correct, I flew ones from Newyork, NY to Lynchburg , VA in a Saab 340 turbo prop. The flight was about 1/3 booked (but not cancelled ) and the captain told us passagers to use only the seats in the very back of the vessel If we wanted to save 15 min flight time. And so we did, Also I have tried a trim tab shim on my Catri 26 on the aft foil, and setting negative slow things down.
  17. msouth

    Foiling Stability and Control

    HYDROFOIL SURFING is the safe way, equvivalent to ground effect flying, no crashes ever.
  18. msouth

    My Ama's Aka's squeak :( Help!

    Always wondered about those pressure pad, why not just have a metal to metal connection, absolute steady and sit Still like a rock.
  19. msouth

    Foiling: Controlled Jumping?

    One thing has to be concidered very carefully, that is scale vs stability, For you that fly RC helicopters and fly real helicopters, it is 2 worlds, the RC helicopters need and has gyro stabilizer a real chopper do not need that due to it's size, it has a complete different stability acceleration.
  20. msouth

    Foiling question - (I know...)

    Having sailing experience of 15 years with foils, the conclusion is that pitch damping is more or less insane strong, the main foils beeing dihedral 45 deg.(V-foil) And rear foils anhedral 10 deg, rudder foil just horizontal T-foil.
  21. msouth

    Foiling question - (I know...)

    Here an example of main foil moved forward, The Catri trimaran is 8meter , the distance between main and rear foil is 6 meters, This simulate the pitch damping of a 12 meter non foiling vessel on a 8 meter boat.
  22. msouth

    Centreboard removal

    The corda of a Black Hawk chopper main rotor is 0.53m, made of glassfiber, (carbon is to weak). Forget about durability, they will never break! They have interesting twist for foil applications.
  23. msouth

    Centreboard removal

    It seems like great idea, free up some space in the mainhull and only have 2 maintenace fiendly daggers in outriggers, If the daggers are foils like C-foils they will have assymetric profile which will provide lift and anti drift, They can be smaller in size than a symmetric main hull board. Do some calculations on weight savings.