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acelanceloet
Post subject: Re: Prowler Class OPVPosted: March 10th, 2013, 9:29 am
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Fox wrote:
This is so the OPV can also take the merlin Helicopter, however I think I could move some stuff to make it fit better.
note that the type 23 can also take an merlin, with an hangar much lower then yours ;)

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Fox
Post subject: Re: Prowler Class OPVPosted: March 10th, 2013, 11:11 am
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Thanks for the tip!

also I have taken a look at the superstructure, and with changes made around the 30mm It should be possible to have a beam around 18-20 meters


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acelanceloet
Post subject: Re: Prowler Class OPVPosted: March 10th, 2013, 11:22 am
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http://www.shipbucket.com/images.php?di ... OLLAND.png
this vessel, only slightly shorter then your vessel, has an beam of 16 meters only. note that the holland class is noted to be an quite stubby ship, trading speed for better seakeeping. 18-20 meters doubles your resistance and thus gives you an speed (if you would have the same engines) of only 15-18 knots.
if I have a bit more time in a few days, I might run a stability calculation for you, but with 18-20 meters beam I think your structure is way too high (and the hull, for that matter)

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Shipright
Post subject: Re: Prowler Class OPVPosted: March 10th, 2013, 12:57 pm
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Fox wrote:
This is so the OPV can also take the merlin Helicopter, however I think I could move some stuff to make it fit better.
It's still far to tall. Why does this small ship need to be able to house such a large helo? Is there an operational reason?


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Fox
Post subject: Re: Prowler Class OPVPosted: March 10th, 2013, 3:23 pm
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-Hangar base re-scaled to accommodate Black hawk (Shipright is correct, does not need such a large helo)

-Lowered superstructure

-En-longed hull

-changed crane

-Moved NSSM

-Moved stuff around in general

[ img ]

*Note:
Not everything, as in details is done yet, wanted your opinions first


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acelanceloet
Post subject: Re: Prowler Class OPVPosted: March 10th, 2013, 3:39 pm
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stability wise it now works. now a few more comments:
- the funnel is waaaay too big for the installed power, unless you have gas turbines on board, which I suppose you have not, for an OPV.
- the bow thrusters are in a quite bad place
- the anchor looks flimsy compared to the size and shape of the vessel. I suggest stealing one of an similar ship
- the funnels block the I-mast partially.
- those marlin mounts are in quite a bad spot, you need increased beam for them while they have no line of fire to the back.
- you have no gun line of fire to the back at all, which seems not to be an good idea for an vessel that needs to come relatively close to 'enemy' vessels, as an OPV does.
- the helideck seems a tad big, you might be able to use that space more effectively and thus not needing that longer hull
- the crane is a bit on the big size for that RHIB, I suggest splitting the cargo and the RHIB handling (or using the crane you first had, which is an very good multipurpose crane)
- the Mk 29 NSSM launcher is, IIRC, an outdated drawing of the system. you can find the newer one here: http://www.shipbucket.com/forums/viewto ... ?f=16&t=20
- on a sidenote, why do you have NSSM on an OPV anyways?

my suggestions would be:
- make the hull L*B*D: 100*16/17*5 on the waterline
- bring the main deck down 1 or 1/2 deck (thus lowering the light grey part of the hull)
- make the funnel 1/4th of the current size
- make the bridge as wide as the funnel
- move the marlin mounts to the centerline, or on the 'corners' of the ship (fore and aft to the sides) so you cover 360 degrees
- lower the main gun one deck
- keep the mast, bridge and hangar in the same position (at least, when compared with the main deck, which you will lower)

then, you have, IMO, an quite sensible vessel!

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Shipright
Post subject: Re: Prowler Class OPVPosted: March 11th, 2013, 3:45 am
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I like it Fox, very good art.

The flight decks big but it will slow you to land the Merlin you were thinking about earlier even if you can't embark it which could be good for a lot of things.

What are the exposed bays below the flight deck for?


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Fox
Post subject: Re: Prowler Class OPVPosted: March 11th, 2013, 7:51 am
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Thanks, doing my best, but as acelanceloet has pointed out it still needs a lot of work :D

I was planning to use the exposed decks for general movement and for docking the vessel, however these details aren't added yet

on your question acelanceloet, I wanted my OPV to have the ability to take out aircraft / helicopters, without using the marlins


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Fox
Post subject: Re: Prowler Class OPVPosted: March 12th, 2013, 10:32 am
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Acelanceloet

is this more like it?

crane and RHIB aren't in yet also needs more details, but this is the basic

[ img ]


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Thiel
Post subject: Re: Prowler Class OPVPosted: March 12th, 2013, 11:23 am
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Much better, but you'll need to move the gun further aft in order to accommodate it. I'd also replace the Mk. 29 with a Mk. 48 VLS.

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