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 Forum: Off Topic  Topic: Whatever happened to the AWJ-21 waterjet?

erik_t
 Post subject: Re: Whatever happened to the AWJ-21 waterjet? Posted: December 20th, 2019, 10:05 pm 

Replies: 2
Views: 753


These are only guesses on my part, but I would propose a combination of the following: Long-term fallout from the late-2000s recession has western navies more interested in lower-cost systems Experience with waterjets on LCS and some flavors of the MEKO has not been super positive Experience with wh...

 Forum: Personal Designs  Topic: London treaty Gunboat Challenge

erik_t
 Post subject: Re: London treaty Gunboat Challenge Posted: December 15th, 2019, 2:46 pm 

Replies: 31
Views: 8089


I find this contest idea to be particularly interesting, because (unlike the rest of the various treaties) this line item almost spoke a type of ship into being, and no major navy ever built anything like it again. I hope I find time to come up with something :)

 Forum: Never-Built Designs  Topic: American Never-Built Cruisers

erik_t
 Post subject: Re: American Never-Built Cruisers Posted: December 11th, 2019, 7:09 pm 

Replies: 21
Views: 6296


One is the enlarged 5/38 lookalike Dalamace used. The other one is based on the real 5/54 singles of the USS midway and its the one I've posted. The base ring on the 5/38 single mount was only slightly smaller than that of the twin (depending on exactly how you define the diameter, about 110" vs. 9...

 Forum: Never-Built Designs  Topic: American Never-Built Cruisers

erik_t
 Post subject: Re: American Never-Built Cruisers Posted: December 11th, 2019, 3:01 am 

Replies: 21
Views: 6296


I think we can do better than so-called "random features". It seems to me like a fairly safe bet that a 5/54 twin would reproduce the 5/38 crew arrangements in general, if not in exact detail. Thus a trainer on the mount's right hand side, a pointer and checker on the left, and a mount captain at re...

 Forum: Never-Built Designs  Topic: American Never-Built Cruisers

erik_t
 Post subject: Re: American Never-Built Cruisers Posted: December 4th, 2019, 2:31 pm 

Replies: 21
Views: 6296


I think the real trick in a never-built design is to fill in representative details whose disposition may not be precisely known, but can be judged necessary. An obvious example would be wire bracing for a pole mast: we don't know exactly where it would be located (probably the designer didn't worry...

 Forum: Never-Built Designs  Topic: Royal Thai Navy Never Built

erik_t
 Post subject: Re: Royal Thai Navy Never Built Posted: November 21st, 2019, 3:35 pm 

Replies: 36
Views: 25833


Is there reason to think the torpedo area would be open from beam to beam? I'd sort of expect it to be plated in.

 Forum: Alternate Universe Designs  Topic: Caledonia??

erik_t
 Post subject: Re: Caledonia?? Posted: November 19th, 2019, 1:24 pm 

Replies: 158
Views: 97248


A 35-knot CODELAG large frigate with six diesels and a single gas turbine seems several steps beyond the state of the art in the 1970s.

 Forum: Real Designs  Topic: HMAS Hobart DDG 39

erik_t
 Post subject: Re: HMAS Hobart DDG 39 Posted: November 10th, 2019, 3:33 pm 

Replies: 5
Views: 2182


I don't love this rendering of SPQ-9B (it looks a little "fat" to me), but otherwise it's an excellent drawing.

 Forum: Alternate Universe Designs  Topic: Caledonia??

erik_t
 Post subject: Re: Caledonia?? Posted: November 3rd, 2019, 4:17 pm 

Replies: 158
Views: 97248


The L-series is very attractive, although I question the use of four shafts on L18. Cheaper (both in cost and in hull volume) to use two larger screws.

 Forum: Never-Built Designs  Topic: Soviet never-built Submarine designs

erik_t
 Post subject: Re: Soviet never-built Submarine designs Posted: November 3rd, 2019, 4:16 pm 

Replies: 25
Views: 15492


...Is 1231 a submersible hydrofoil?

Certainly a unique concept. Even as a child, I never had such an active imagination!
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