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Macquarie Island Class Border Support Ship
https://111903.jhzobq.asia/forums/viewtopic.php?f=15&t=4694		 Page 1 of 2
Author:  LEUT_East [ November 20th, 2013, 8:47 am ]
Post subject:  Macquarie Island Class Border Support Ship
Finally got around to finishing the Macquarie Island Class Border Patrol Ship. The class is mainly used to support Australia's outer territories such as Christmas Island. They are also used as disaster relief and fleet support purposes.

[ img ]

Macquarie Island Class Specifications:
Type Auxiliary
Crew 112
Displacement 13,500 tons
Length 141.5 metres
Beam 21.5 metres
Draught 9 metres
Speed 17.5 knots
Guns 2 x Typhoon-G 25mm (when deployed)
Helicopters 1 x NH-90 (AUS)
Propulsion 2 x diesels, 10,728shp
Author:  Rowdy36 [ November 20th, 2013, 9:51 am ]
Post subject:  Re: Macquarie Island Class Border Support Ship
Very nice mate :)
Author:  M V Vostrotin [ November 20th, 2013, 11:47 am ]
Post subject:  Re: Macquarie Island Class Border Support Ship
That ship is fantastic! Another A+ quality design. Is it based on the Rolls Royce support ship??

How would you see this employed in the force structure of current Op Sov. Borders though? Would she ferry asylum seekers from Christmas to Manus? Or keep the ACPBs (which have hit their 15 year life span already... *tugs collar frightfully*) at sea longer?
Author:  heuhen [ November 20th, 2013, 12:09 pm ]
Post subject:  Re: Macquarie Island Class Border Support Ship
The bulbos bow is a bit wrong. I'm ar work at the moment. But when I get home I can explain it. Or you just look on other ships.
Author:  rifleman [ November 20th, 2013, 2:46 pm ]
Post subject:  Re: Macquarie Island Class Border Support Ship
very nice would work well with the "Brumbies"
Author:  acelanceloet [ November 20th, 2013, 3:26 pm ]
Post subject:  Re: Macquarie Island Class Border Support Ship
quite nice. just a few comments:
- the bow thrusters are very far from the bow. I would think they would be roughly underneath the 90 or even forward of that. they are often near the fore peak bulkhead and in the curve of the bulb.
- the propeller is not the best looking one (with one of the blades 2 pixels behind the other 2) and might get some use from improving it
- the propeller axis is never going to run straight trough the plates, there is gonna be some support at this point, because otherwise it is near impossible to make watertight.
- I would see some use in an crane aft, even if it is small, as the cargo delivered there by VERTREP is otherwise only movable by forklift or something like that. this is not an requirement of any kind, but something I think might come in handy
- why not place the main crane more amidships, so you can get twice the value from your cargo?
- the sloop in front of the bridge seems to be quite far from the edge of the hull the way it looks now. it might not be, it just looks like it. it would not suffer from being fitted at an structure flush with the hull, less things it can get stuck too as well.

other then that, it looks great ;)
Author:  Thiel [ November 20th, 2013, 4:04 pm ]
Post subject:  Re: Macquarie Island Class Border Support Ship
I agree with ace on the bow thrusters and the cranes.
Bow thrusters are usually placed in the fore-peak since it's the best compromise in terms of structural strength and leverage. At the current position you'd need a tunnel almost 21m long to mount them in.
Another reason to put them in the fore-peak is that you can seal it off away from the cargo which is mighty useful if it gets damaged and catches on fire or starts to leak. While extremely rare it's not entirely unheard of for them to blow up if something sufficiently big gets caught in the thruster.
As I said I agree on the cranes as well, though that's mostly because in my albeit limited experience as a commercial sailor you can't have enough of them. Preferably I'd mount it so it can reach into the engine room via a deck hatch as well.
I'll also ad that you're going to need some sort of evacuation system to get into your liferafts. While 20m is within the maximum fall height for a typical liferaft it's well beyond what you can expect your average sailor to jump. Something like Viking's evacuation chute should do the trick.

On an artistic note I'd use a brighter grey to shade the underwater hull. Right now it looks more fuzzy than shaded.

In spite of that it's a really well executed drawing and it's good to see the level of detail you put in it.
Author:  eswube [ November 20th, 2013, 4:45 pm ]
Post subject:  Re: Macquarie Island Class Border Support Ship
Very interesting addition.
Author:  GLACIESFIRE [ November 20th, 2013, 11:18 pm ]
Post subject:  Re: Macquarie Island Class Border Support Ship
Very very nice!!! Why don't You start an AU Nation?
Author:  heuhen [ November 20th, 2013, 11:52 pm ]
Post subject:  Re: Macquarie Island Class Border Support Ship
you'r bulbous bow must be lifted up a bit to have any effect. (a bulbos bow main task is to reduce fuel cost, and reduce ship waves, and some other things...)

her is an example of an bulbous bow that is effective.

http://worldslargestship.com/wp-content ... gn_2_2.png

here's an different example, with a lot of extra equipment:

http://samspostgrads.files.wordpress.co ... .jpg?w=640


Other bulb types:

- the ball: give the little extra lift in the bow area. (often seen on offshore vessels)
- the cylinder: make an short bow a bit sharper, for better performance up against waves.
- The Bulbous bow that looks like an thumb: Reduce fuel consumption, create an anti-wave that reduce the hull wave, reduce drag. (cruise ships, some cargo ships, Offshore vessels that is supplying offshore installation)

and many other types, basically some bulbous bows are designed for one thing, while other are designed to do many things. The main reason for some choose simple bulbous bow is: The cost of develop an bulb that works for the hull/ship, construction cost, and what type of task the ship is going to do.
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