HELIPAD for yatch retrofit

Discussion in 'Boat Design' started by AnneY, Aug 9, 2011.

  1. masalai
    Joined: Oct 2007
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    Location: cruising, Australia

    masalai masalai

    You may be pushing the S*** stuff up-hill with a pointy stick as the data Frosty found the vessel was only 1000t and the replacement (via my post 2700t) and it had a WASP helio...

    http://en.wikipedia.org/wiki/Westland_Wasp
    Data from Westland Aircraft since 1915 [14]
    General characteristics
    * Crew: One pilot, one Aircrewman
    * Capacity: up to four passengers
    * Length: inc rotor 40 ft 4 in (12.30 m [15])
    * Rotor diameter: 32 ft 3 in (9.83 m)
    * Height: 8 ft 11 in (2.72 m)
    * Disc area: 816.9 ft² (75.9 m²)
    * Empty weight: 3,452 lb (1,569 kg)
    * Max takeoff weight: 5,500 lb (2,500 kg)
    * Powerplant: 1 × Rolls-Royce Nimbus 103 turboshaft, 1,050 shp [16] (783 kW)
    Performance
    * Maximum speed: 120 mph (104 knots, 193 km/h)
    * Cruise speed: 110 mph (96 knots, 177 km/h)
    * Range: 303 miles (263 NM, 488 km)
    * Service ceiling: 12,200 ft (3,720 m)
    * Rate of climb: 1,440 ft/min (7.3 m/s)
    * Disc loading: 6.75 lb/ft² (33 kg/m²)
    * Power/mass: 0.19 hp/lb (0.31 kW/kg)


    Ambition and reasonable possibility seem to be getting further and further apart...
     
  2. masalai
    Joined: Oct 2007
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    Location: cruising, Australia

    masalai masalai

    http://en.wikipedia.org/wiki/Airwolf_(helicopter)
    Airwolf vs. Bell 222 Bell 222 Airwolf
    Crew 2 (pilot & copilot) 2–3 (pilot(s) & weapons technician)
    Passengers 5–6 1–2 (non-crew may use the copilot seat and/or a seat behind the technician's seat)
    Length 49.54 ft (15.10 m)
    Height 11.68 ft (3.56 m)
    Weight 4,555 lb (2,066 kg) unspecified
    Speed 149 mph (240 km/h) 345 mph (555 km/h) conventional, Mach 1+ with turbo thrusters
    Range 373 mi (600 km) 950–1,450 mi (1,530–2,330 km)
    Ceiling 12,800 ft (3,900 m) 11,000 ft (3,400 m) unpressurized
    100,000 ft (30,000 m) pressurized
    Power (×2) 618 hp (461 kW) unspecified
     
  3. AnneY
    Joined: Aug 2011
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    Location: Philippines

    AnneY Junior Member

    I cannot comment regarding the possibility of the installation of the helipad. I am new with all of these and just learning bits and pieces form your posts.
    As I stated earlier in this thread, I am only complying to what the owner wants me to research about and hopefully with your insights/comments s/he will be able to make the right decision when it comes to taking the right path/options for the retrofit.
    Her/his goal is to maximize the retrofit and be able to include all the possible services the yacht can offer/accommodate. As the long term plan for the yacht is to charter it for a few years and then sell it.
     
  4. Frosty

    Frosty Previous Member

    Thanks for the info Frosty


    Oh your welcome!!
     
  5. Poida
    Joined: Apr 2006
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    Location: Australia

    Poida Senior Member

    The owner has asked you to do something and you can't work out what sex he/she is.

    Good luck in working out how to do a helipad.
     
  6. Frosty

    Frosty Previous Member

    Poida I never said I was any good at either.

    Did I mis something who asked me to do something--panic--its not on my screen --where?

    Sex? what sex is she then?
     
  7. Stumble
    Joined: Oct 2008
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    Location: New Orleans

    Stumble Senior Member

    Anne,

    This is a fun group hu?

    Without more info on exactly what ship, and what helo are being married it is a bit of a stretch to give any specific details. But it appears the owner is trying to squeeze more aircraft on the boat than it can reasonably hold. The difference between a small 2sob aircraft and a 6 sob is huge.
     
  8. Poida
    Joined: Apr 2006
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    Location: Australia

    Poida Senior Member

    Frosty My post #20 is in relation to post #18
     

  9. Bin Holt
    Joined: Sep 2011
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    Location: Dubai

    Bin Holt New Member

    HMS BULLDOG - Yacht conversion _ Helicopters

    Dear Anne,

    I am a former Royal Navy Officer and a former Commanding Officer of HMS BULLDOG - the yacht conversion I believe you are involved in. With suitable modifications I believe BULLDOG is more than capable of a land on capability for a Westland Wasp sized aircraft. The BULLDOG class were tough with excellent seakeeping capability. I have operated Westland Wasp (from the stern) and Seaking ( from the bow) in VERTREP mode. The Seaking was a bit to big, but a Wasp sized aircraft on a flight deck over the stern would be achievable in my opinion. If you have any photos of BULLDOG in her new role I would be very grateful for them, including any other information you can supply.
    Best regards, Andrew.
     
    1 person likes this.
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