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rifleman
Post subject: Re: AU Australia Operation ResolutePosted: November 21st, 2013, 1:25 pm
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Thinks may have to dust this file down for the replacement ship.

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rifleman
Post subject: Re: AU Australia Operation ResolutePosted: June 14th, 2014, 10:57 am
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Well all good things must come to an end, unfortunately years of hard work caught up on the "Brumby's" by 2012 it was obvious they were fast approaching the end of their working lives. The decision to replace was as hard fought as the original decision. It was fought in committee and parliament by a variety of "Interested" parties. The politics not only taking place in parliament but with in the Australian defence forces and Navy. the RAAF argued better and more MPA's would be a better solution and within the navy the Frigate and Destroyer lobby argued the funds would be better invested in more large vessels.
The debate in Parliament led to one huge change in operating policy no replacement vessel should go to sea with out airborne surveillance capability. Funding was earmarked for the plan. In the "Short term" 723 Sqn received 6 Agusta A109's to supplement its AS350B and 816 Sqn Providing Seahawks for most ships flights. However a more modern solution was also added to the equation 851 Sqn reformed to operate 16 MQ8B Fire Scout Unmanned Aerial Vehicles.
The shortlist for the replacement vessels was narrowed down to variants of: Huntington Ingalls industries "Legend " Class Cutter, BaE Systems "Protector" Offshore Patrol vessel, Damen Schelde "Holland" Class Corvette and Damen "Sigma" class Corvette. Each company marketed their product in the Australian media as well as lobbied hard. Work offsets and other factors were offered. Many thought the "Protector" would be the winner being already built by BaE in Australia and in service with the RNZN. And the Media and commentators were shocked when the outsider was selected as the "Moreton Bay" class. Damen Schelde had teamed up with Forgas shipyard to build 9 "Holland" Class Offshore patrol Vessels.
[ img ]
Moreton Bay, Batemans Bay, Tin Can Bay, Jervis Bay, Port Philip Bay, Coles Bay, Flinders Bay, Botany Bay and Bathurst Bay.

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Last edited by rifleman on June 14th, 2014, 2:56 pm, edited 3 times in total.

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acelanceloet
Post subject: Re: AU Australia Operation ResolutePosted: June 14th, 2014, 1:52 pm
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first of all, I'd like to see you spell my username correctly, as well as miho's. (in my case, you may also use what I use now: J.Scholtens

secondly, I am a bit wondering why you have the 'director' on top of the mast, as there is no weapon system on the ship that was not on the dutch ships.
there is also a bit of dark shading on the funnel I am not certain about if it should be there.

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rifleman
Post subject: Re: AU Australia Operation ResolutePosted: June 14th, 2014, 2:28 pm
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the director:

"The shortlist for the replacement vessels was narrowed down to variants of:"

A Director is usually an Electro optical device with good long distance optics and night vision capability. Mounted high up gives good field of vision. On a vessel that is being used for things like law enforcement, fisheries protection etc gathering of video which useful prosecution evidence. Hence the reason for mounting ELOP as high as possible.

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acelanceloet
Post subject: Re: AU Australia Operation ResolutePosted: June 14th, 2014, 2:35 pm
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Mioshik should be MihoshiK. Vosseiej should be Vossiej btw, and I use a dot between the J and the S in my username.

if you just use the standard sb font and sizes, you can just copy all that from the original drawings.

the director in this case is basically an STIR, which is an missile and gun director. the only additional power this gives to the I-mast on this vessel is additional guidance channels, which you do not need as you don't have additional weapons, right? an additional long range satcom seems of more use to me.
a few meter below where this director is placed now is the camera system build in the I-mast, which is already high enough to see at the limit of what can be visible on camera's at this point, IIRC. putting them higher will not expand range, IMO.

btw, I have since the last upload session done a few small updates on the holland class drawing, mostly the flaglines from the mast, you might want to add those in?
[ img ]

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rifleman
Post subject: Re: AU Australia Operation ResolutePosted: June 14th, 2014, 3:02 pm
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Yeap am aware of camera system in the IMAST. But is this an standard off the shelf purchase? or is the Director an ELOP?
I seam to remember from my high school physics the distance to the horizon varies depending on the height the observer above sea level therefore the higher up you can mount your observation device the further you can see and if you have an enhanced stabilised All weather vision device it'll take up more space so it's been placed in on a mounting on top of the Imast.

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acelanceloet
Post subject: Re: AU Australia Operation ResolutePosted: June 14th, 2014, 3:11 pm
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well, the director is not yet actually build or at least not installed in any ship, so nobody knows what the director is exactly. most likely, it is an STIR 1.2 or 1.8 fitted in an ball, as the shape and openings of it match up quite nicely.

while it is correct that the horizon gets farther away the higher you get (due to the curvature of the earth) the fact that the atmosphere messes up the view of camera's, and the fact that at some point a target is to small to actually be visible on the camera view, at some point there is really no advantage gained by the higher position of camera's, IIRC.

that said, you could put an Mirador or an pure EO fire control sensor on that position (the thing below the director you have now on the dutch parts sheet) with a lot lower weight and cost, for exactly the same advantage as you want.

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