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PostPosted: Fri Nov 06, 2020 7:05 pm 
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Back in April 2018, I discussed a possible way to introduce autonomous surface escorts into the fleet. See viewtopic.php?f=67&t=167112 This new scratch-built project is to show an idea of what such a ship might look like.I'm calling it USS FEARLESS. I selected 1/192 scale to match my FFG-63 model, shown being built here. viewtopic.php?f=13&t=166867
I picked a trimaran for its visual appeal. The main hull would be 340 feet overall with a beam of 34 feet, giving it the size of a Benson/Gleaves class destroyer of World War II. That should give the endurance and payload to accompany a task force. It has conventional propellers instead of pumpjets as the excess speed of an LCS isn't needed.
This is my first multi-hull project and I've had trouble visualizing how to integrate the parts without looking clunky. To keep it simple, I'm building the main hull first up to the cross-deck. Then I'll set the full-width superstructure on top of that, finish the upper hull, then add the outrigger hulls. The drawing in the first photo shows I have not yet designed the radar mast or stack.
I'm using a sharp-bilge hull similar to the trimaran USS Independence class LCS. To avoid laying hull plating around such a tight radius, I've used a 1/4-inch thick plate as the bottom of the hull like a prefabricated double bottom. I'll sand off the bottom corners for the desired radius. I cut the double bottom in two pieces to allow it to slope up to the stern. Then 1/16-inch plating will cover the sides and top of the main hull. This was a very simple structure to assemble.


Attachments:
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Last edited by MPERRY on Fri Nov 06, 2020 7:15 pm, edited 1 time in total.
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PostPosted: Fri Nov 06, 2020 7:09 pm 
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Can some one please tell me how to make the two attempted links in the first paragraph work? Thanks.

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PostPosted: Fri Nov 06, 2020 7:20 pm 
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Links fixed. You need the rest of the URL (the http://www.shipmodels.info/mws_forum/ section) for the forum to understand what you're posting and turn it into a link. There also no need for the
Code:
[url]
tags unless you plan on embedding the link in a word like this.

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PostPosted: Fri Nov 06, 2020 7:26 pm 
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Thanks Timmy!

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PostPosted: Fri Nov 06, 2020 9:24 pm 
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Mike, the top front of your outrigger hull profile drawing does not match the topview drawing. are you related to Commodore Oliver Hazard Perry or Commodore Mathew Perry?


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PostPosted: Fri Nov 06, 2020 9:45 pm 
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David, I'm related to neither Commodore, though I did work with a descendent of O. H. Perry some years ago. He shared the first two names. The top and side profile views were a bit rough when I drew them. It should be clearer to both of us as the superstructure goes together.

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PostPosted: Fri Nov 06, 2020 10:09 pm 
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my step-father was a descendent of those 2 men. I have the same last name as you.
the front deck of the out-rigger should be about halfway between the waterline & the deck of the main hull, according to your drawing. or the angle of the deck joining the main hull to the out-rigger has to move forward on the out-rigger til it almost meets the out-rigger's bow. used to be a mechanical draftsman back in the early 80's.


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PostPosted: Mon Nov 09, 2020 4:00 pm 
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Here are a few more photos of this weekend's work. Most of the hull is plated-in, the turn of the bilge has been partially sanded down, and the bulbous bow is roughed out.The superstructure frame is just sitting on the hull and not glued down yet.


Attachments:
Fearless 06.JPG
Fearless 06.JPG [ 127.73 KiB | Viewed 506 times ]
Fearless 07.JPG
Fearless 07.JPG [ 158.74 KiB | Viewed 506 times ]

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PostPosted: Thu Nov 12, 2020 12:05 pm 
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A couple more photos of progress, showing the start of the upper hull. The bridging superstructure is still just sitting on the hull for the photo. It's not glued down yet. I did add two quarter-inch pieces across the bridge to strengthen it. The stem will be a solid laminated piece that I shape and glue to the front of the first bulkhead shown in the photo.


Attachments:
Fearless 08.JPG
Fearless 08.JPG [ 129.45 KiB | Viewed 463 times ]
Fearless 09.JPG
Fearless 09.JPG [ 119.85 KiB | Viewed 463 times ]

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PostPosted: Sun Nov 15, 2020 3:45 pm 
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The last couple of days have been spent working on the bow. Here I've built it up to the level of the main deck and laminated the chunk that will go in front of the first frame. Time to charge up the Drumel sander. Once the bow is in place, I'll glue on the bridge deck and continue the main deck into the superstructure, both forward and aft.


Attachments:
Fearless 10.JPG
Fearless 10.JPG [ 130.76 KiB | Viewed 423 times ]
Fearless 11.JPG
Fearless 11.JPG [ 126.27 KiB | Viewed 423 times ]

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PostPosted: Sat Nov 21, 2020 1:01 pm 
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The bow is finished and I'm starting to integrate the hull with the superstructure.


Attachments:
Fearless 12.JPG
Fearless 12.JPG [ 132.84 KiB | Viewed 370 times ]
Fearless 13.JPG
Fearless 13.JPG [ 112.67 KiB | Viewed 370 times ]
Fearless 14.JPG
Fearless 14.JPG [ 118.97 KiB | Viewed 370 times ]

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PostPosted: Sun Nov 22, 2020 12:31 pm 
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I've been using cut-outs to plan the arrangement of weapons, sensors and engine intakes & exhaust. From aft to forward (left to right in the photo), armament will be a 21-round RAM launcher, two quad-cannisters for the Naval Strike Missile, four 8-cell VLS modules, plus a gun. I haven't decided whether to use a 57mm or 76mm gun mount.


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Fearless 15.JPG
Fearless 15.JPG [ 152.37 KiB | Viewed 340 times ]

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PostPosted: Sun Nov 22, 2020 1:17 pm 
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are the exhaust & intakes going to be flush mounted or raised? if flush mounted then re-arrange the intakes to be at least on either side(port & starboard) or all 4 sides to reduce the ir signature of the exhaust ports. go 76mm as more hitting power.


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PostPosted: Sun Nov 22, 2020 2:11 pm 
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David,
The intakes and exhaust will be raised 7 or 8 feet. And I'm leaning toward the OTO 76 super rapid gun.

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PostPosted: Sun Nov 22, 2020 3:10 pm 
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Really depends on the expected role of the gun - if you're planning on sinking larger vessels or providing longer range fire support, sure, a 76 makes sense. But if it's intended to be a close-in defensive weapon for anti-missile/drone or anti-small boat where higher damage isn't necessary, then the 57's much higher rate of fire would be a better fit.

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PostPosted: Sun Nov 22, 2020 3:59 pm 
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Mike, surround the exhaust outlets of the stack(s) with the intakes that will cool the stack(s) thereby reducing the ir signature like that done on the flight 2a Burkes.


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PostPosted: Sun Nov 22, 2020 8:47 pm 
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Some very unusual hull shapes to craft. Guess this gives a new dimension to the term "ASW".


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PostPosted: Sat Nov 28, 2020 11:33 am 
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I've been working on the forward starboard superstructure. I need to put more time into drawing the outrigger hulls.


Attachments:
Fearless 16.JPG
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Fearless 17.JPG
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Fearless 18.JPG
Fearless 18.JPG [ 118.18 KiB | Viewed 267 times ]
Fearless 19.JPG
Fearless 19.JPG [ 105.02 KiB | Viewed 267 times ]

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PostPosted: Sat Nov 28, 2020 1:07 pm 
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About a year ago, I was a long way from what kind of model to next invest my time in but needed to make something. So I sketched out a sleek star ship and made it from my usual sheet basswood. It's 10.5 inches long but could represent any scale as there is no detail to cue the eye. The warp foils were a lot of trouble keeping the right curvature, as every time I sealed or painted them, they would curve away from the moisture. In the end, I painted both sides together while fixed in a jig and kept them there for about a week. I used Krylon spray paint that's very close to haze gray. I'll use the same paint for the autonomous surface warship.


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DSC_0188.JPG
DSC_0188.JPG [ 102 KiB | Viewed 262 times ]

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PostPosted: Sat Dec 05, 2020 11:25 am 
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This week I closed in the aft end of the superstructure. The first effort didn't quite reach the aft bulkhead so I glued on a second sheet of wood that carried the quarter-panel to where I wanted it. With the roof on, filler and sanding the woops is hidden for all time.


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Fearless 20.JPG
Fearless 20.JPG [ 132.44 KiB | Viewed 213 times ]
Fearless 21.JPG
Fearless 21.JPG [ 111.46 KiB | Viewed 213 times ]

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