Subsim Narwhal Contest - Mod is now available, see post #662

[Hitman]

Excellent! The deck gun platform now really looks like it should, and the cross section is also very much better but I think it should be a bit more "fat". The V Boats had huge volume hulls.

But is in the first picture (lowered gun platform) the reworked cross section already present? I would say it wasn't yet?

I'll try to post later pictures with the differences highlighted. For now the model you have shown is 100% the Argonaut, as the extra external tubes were only installed (AFAIK) in the Narwhal and Nautilus -the two ones with raised gun platform-

[AVGWarhawk]

Originally Posted by keltos01

do you have a high resolution scan of this blueprint ? I see the cross sections in the lower left corner !!

keltos

Best I could find sir!

[Sledgehammer427]

I could do my photoshop magic and sharpen the image a bit.
I'll try

[keltos01]

Originally Posted by Hitman

Excellent! The deck gun platform now really looks like it should, and the cross section is also very much better but I think it should be a bit more "fat". The V Boats had huge volume hulls.

But is in the first picture (lowered gun platform) the reworked cross section already present? I would say it wasn't yet?

I'll try to post later pictures with the differences highlighted. For now the model you have shown is 100% the Argonaut, as the extra external tubes were only installed (AFAIK) in the Narwhal and Nautilus -the two ones with raised gun platform-

good. but since we are making a narwhal we'd need those 2 extra tubes wouldn't we ?

or start with the Argonaut, and lower the guns platfrom to the deck ?

keltos

[Sledgehammer427]

[keltos01]

they didn't have those extra tubes at first :



Narwhal during Pearl Harbor attack :




http://www.pigboats.com/subs/v-boats.html

[keltos01]

torpedo tubes : 4 forward 2 aft

from 1942 four external tubes 21 inch 2 forward, 2 aft

Submarines of WWII erminio bagnasco, p. 219

btw on page 218 it states that Argonaut only had 4 bow tubes..

keltos

[AVGWarhawk]

They may not have the extra tubes. The porpoise did:

[Sledgehammer427]

now, a twist.

She was also fitted with a Torpedo Data Computer (lack of which likely inhibited her ability to score with torpedoes), new electronics, and two external torpedo tubes for storage.


maybe they werent shootable, just a creative way to stow torps?

[keltos01]

they look the same as the British Class T's external tubes, I'd say shootable !

keltos

[AVGWarhawk]

USS Narwhal she had 10(ten) 21 inch tubes.

USS Narwhal SS-167
CareerUSN Jack
Ordered:Laid down:10 May 1927Launched:17 December 1929Commissioned:15 May 1930Fate:sold for scrapStricken:19 May 1945General CharacteristicsDisplacement:2730 tons surfaced, 3960 tons submergedLength:371 ft (113 m)Beam:33 ft 3 in (10.1 m)Draft:15 ft 9 in (4.8 m)Speed:17 knots (31 km/h) surfaced, 8 knots (15 km/h) submergedComplement:88 officers and menArmament:2 x 6 in (152 mm) guns, 2 x .30 caliber (7.62 mm) machinegun, 10 x 21 in (533 mm) torpedo tubes

[Hitman]

or start with the Argonaut, and lower the guns platfrom to the deck ?

YES YES!!! Always start with the Argonaut as I have already explained. The Argonaut has the gun platform at the deck level, and the Narwhal and Nautilus just had a second platform with the exact same shape as the lower one, but raised above it. Once you have the basic Argonaut (Low gun platform and only 4 fw and 2 stern tubes) you can just add a second deck gun platform with the exact shape but raised over the deck, and you have the Narwhal/Nautilus already!

I have tweaked the excellent picture posted by AVG to show clearly that the side part of the platform does not curve to the outside as in your model, but is instead VERTICAL. It's the hull, when curving to the inside, what makes it appear as protruding.





And here is a scheme that shows it better:

[Hitman]

And this one shows in blue what was ADDED in the Narwhal/Nautilus over the original one from Argonaut:

[Sledgehammer427]

its like the stars aligned and everythings clearer now!
no kidding, thats so dirt simple, i find it hard not to get lol

It's the hull, when curving to the inside, what makes it appear as protruding.

thats the hardest part for me to edit, because the 3d proggy thinks im bonkers for making only one little slab of deck skinnier
gosh, this is really getting to me, i have been so intent on getting this done, i found myself eating out of a thing of gorgonzola cheeze (considering im not much of a cheese person, scary)

[AVGWarhawk]

Narwhal 1939