Sunset Dawn

General

Originally build as the Antelope, the Sunset Dawn is a three masted Barquentine, that means the fore mast is square rigged, and the main and mizzen are fore and aft rigged. The hull is made from steel, and the spars are all made out of carbon fibre.

The deck is steel with impregnated softwood planking glued ontop of it. Also the top of the deckhouses are covered in this wood.


Nameing

Formerly known as
Antelope
Known false names
Blue Swan
Lir

Sunset Dawn

The name Sunset Dawn was thought up by captain Peter James Jacobson, It's a contradiction as dawn ofcourse happens at sunrise and not sunset. It's a jest towards the hidden nature of the ship, being a pirate vessel but often posing as a superyacht.

Crew

Original crew of the Antelope

  • Captain
  • Chief Officer
  • Stewardess Rose
  • Sailor
  • Prize crew of the Antelope

  • Acting Captain Jan de Jongh
  • Engineer Bobby Smith
  • Sailor Aleksey
  • Sailor Jack
  • Sailor (2 more not named)
  • Crew of the Sunset Dawn

  • Ship's cat Roger
  • Captain Rose
  • First mate Jan de Jongh
  • Second Officer Marshmallow
  • Chief engineer Bobby Smith
  • Boatswain Michael
  • Cook Alejandro
  • Master at arms Heinrich von Bern
  • Torpedo engineer Mr. Fisher
  • Sailor Aleksey
  • Side view Sunset Dawn (14aug22) by Jacob-W

    Sail plan

    The foremast carries from deck to top on yards
  • Foresail
  • Lower topsail
  • Upper topsail
  • Lower topgallant
  • Upper topgallant
  • Also it is possible to fly 5 stun sails, on either port, starboard or both.
  • Fore stunsail
  • Lower t'ps'l stuns'l
  • Upper t'ps'l stuns'l
  • Lower t'gallant stuns'l
  • Upper t'gallant stuns'l

  • The mainmast
  • Mainsail, on a boom and gaff
  • Maingafftopsail

  • The mizzenmast
  • Mizzen, on a boom and gaff
  • Mizzengafftopsail

  • Foresails between bowsprit and foremast, from deck to forward
  • Staysail
  • Inner jib
  • Outer jib
  • Flying jib
  • Gennaker

  • In between the fore and main mast the following fore and aft sails
  • Main staysail
  • Main top staysail
  • Main topgallant staysail
  • deckplan Sunset Dawn (14aug22) by Jacob-W
    Cross Section Main Frame Sunset Dawn.png
    Sunset Dawn Cross-section just aft of the main mast (WIP) by Jacob-W

    Power Generation

    Two diesel generators.

    Propulsion

    Main propulsion:

    4.613,36 m² / 49.657,79 sq.feet sail area (excluding light weather extra sails)

    Auxiliary propulsion:

    Two Yanmar 4-stroke marine diesel engines of 1.340kW / 1.822 HP @ 1.940 rpm each.
    Type: 12AYM-WGT
    V-12 direct injection, turbocharger & intercooler. 
    On variable pitch propellers. 
    Consuming 300 L/h each at full load.

    Weapons & Armament

    24 guns on the gun deck (12 on each side)

    Rheinmetall Rh120 L/55  mounted on a carriage positioned rails so that they can slide in and out trough gunports in the side of the ship. 
    The elevation is limited to +10° / -6°
    There is no side to side movement possible.
    The Sunset Dawn does not posses over a fire control system, also the guns not stabilized. The gun's are aimed by sight of the crew, elevation is set by hand driving gears. 
    The gun carriage is pushed out / pulled back by an electric winch. The recoil is caught in the gun's own recoil system, the carriage has brakes that clamp onto the rails during fireing. 
    The guns can be fired from stored position, fully pulled back, position, as long as the gun port is opened. The only downside of this is that a lot of smoke is caught in the gun deck. As the muzzle is a few centimetres behind the gun port in this position. 

    Additional & auxiliary systems

    Hydraulic powered steering gear.
    hydraulic winches for sail handeling.
    Manual powered capstan, but unliked traditional capstans, there is no rope leading to it. It drives a hydraulic pump, charging a accumilator, that then can be used for the winches.

    Hangars & docked vessels

    Two grey Gemini 650 Rib's in davits port and starboard of the deckhouse.
    Both with two 100hp outboard engines.
    Helm station with two seats behind it, and four seats in front. while still having ample deck space for other passengers. Extra rubstreaks around the foam filled heavy duty tubes. The tubes are covered with antislip material to aid the crew. The engines are protected with a bar that wraps around them in the stern connected to the A frame. A tow point in the stern and sturdy mooring bolder inthe bow.
    Two lifting points for connecting to the davits. Single operating from the helm station to release lifting points.
    Black Ensign of Rosalind Abigail Oak. by Jacob-W
    Designation
    Pirate Ship / SV (Sailing Vessel)
    Owning Organization
    Related Professions
    Rarity
    one of a kind
    Beam
    15 m / 49 feet
    Length
    105 m / 344 feet
    Height
    70 m / 229 feet
    Weight
    3.050 mt / 3.986 Long tons
    Speed
    30 knots under sail / 12 knots on the engine
    Complement / Crew
    4 minimum / 45 full pirate crew
    Cargo & Passenger Capacity
    2.200 mt / 2.165 Long ton
    Fate
    Wrecked and sunk by an airstrike from the Bolivarian Navy of Venezuela
    Succesor
    Red Sunrise
    Additional data
    After making the gunports, maximum cargo load has been reduced to 1.200 mt.
    Lpp
    83 m
    Chamber
    50 cm
    Lwl(T=6)
    85 m
    Deadrise
    10°
    D
    8,75 m
    Bilge radius(midship)
    1,0 m

    Minimum draft (T)
    4,45 m
    Maximum draft (fully loaded with 2.200 mt)
    7,00 m
    Maximum draft (fully loaded with 1.200 mt)
    6,00 m

    Values at minimum draft (T= 4,45 m)
    Cb
    0,55
    Am
    56,62 m²
    t/cm
    0,684
    Cp
    0,65
    Aw
    888,75 m²
    KM
    8,87 m
    Cm
    0,85
    Cw
    0,71
    Values at maximum draft (T= 6,00 m)
    Cb
    0,57
    Am
    79,81 m²
    t/cm
    0,774
    Cp
    0,64
    Aw
    1.029,25 m²
    KM
    8,99 m
    Cm
    0,88
    Cw
    0.83
    Values at maximum draft (T= 7,00 m)
    Cb
    0,60
    Am
    94,81 m²
    t/cm
    0,800
    Cp
    0,67
    Aw
    1.080,0 m²
    KM
    9,90 m
    Cm
    0,90
    Cw
    0.87

    Sheer values at stations
    Fpp
    D +1,88 m
    1/6Lpp
    D + 0,84 m
    1/3Lpp
    D +0,21 m
    Midships
    D + 0,0 m
    2/3Lpp
    D + 0,11 m
    5/6Lpp
    D + 0,42 m
    App
    D + 0,94 m

    Mast postitions
    Measured along the deckline. (Aft of Fpp)
    Foremast
    19 m
    Mast rake
    7° to the aft.
    Mainmast
    44 m
    Mizzenmast
    69 m
    Lenght of spars
    Main boom
    23,5 m
    Mizzen boom
    23 m
    Foresail yard
    36 m
    Upper topsail yard
    28 m
    Upper topgallant yard
    20 m
    Fore Stuns'l boom
    x m
    Upper t'ps'l stuns'l boom
    x m
    Upper t'gallant stuns'l boom
    x m
    Main gaff
    22 m
    Mizzen gaff
    21 m
    spacer
    hidden
    Lower topsail yard
    32 m
    Lower topgallant yard
    24 m
    spacer
    hidden
    Lower t'ps'l stuns'l boom
    x m
    Lower t'gallant stuns'l boom
    x m


    Cover image: by Flag design by Jacob-W, Render by Nearlyoctagonal

    Comments

    Please Login in order to comment!
    15 Aug, 2022 11:29

    So cool! What is the relationship between freeboard and draft? Is draft below the waterline?

    15 Aug, 2022 20:34

    Thank you
    The vertical distance from the keel to the deckline is the (moulded) Depth.
    The distance between keel and water line is Draft.
    The distance between the waterline and deckline is freeboard.
    Depth = draft + freeboard.

    Eternal Sage AmélieIS
    Amélie I. S. Debruyne
    15 Aug, 2022 12:47

    Great work with all those schematic drawings!

    To see what I am up to, here is my civilisation challenge article.
    15 Aug, 2022 20:35

    Thank you Amélie :)

    16 Aug, 2022 05:38

    I find it so neat whenever I see an article and can immediately tell the person writing it is passionate and knows a great deal about the subject at-hand. Lovely work, Jacob.

    16 Aug, 2022 08:36

    Ah thank you so much AwsmChimera, :)

    20 Aug, 2022 10:15

    holy shit the schematics!

    20 Aug, 2022 18:41

    They're not even done :O ,
    I want to add more details still, but I don't draw very fast digitally, so mostly it's sketches on paper then work them out on the computer,
    I did share previous versions on my discord before.