Shipbucket
http://shipbucket.com/forums/

USN Systems (02/26/2013)
http://shipbucket.com/forums/viewtopic.php?f=23&t=20
Page 50 of 52

Author:  heuhen [ July 24th, 2014, 7:40 pm ]
Post subject:  Re: USN Systems (02/26/2013)

David Latuch wrote:
Okay . . . I give up . . . in what year did the Mk-38 GFCS enter service. I'm working on a 1934 Refit and I don't need any more mistakes.
funny that google and wikipedia (should give an basic idea):

http://en.wikipedia.org/wiki/Ship_gun_f ... rol_System
Quote:
The Mk38 Gun Fire Control System (GFCS) controlled the large main battery guns of Iowa-class battleships. The radar systems used by the Mk 38 GFCS were far more advanced than the primitive radar sets used by the Japanese in World War II. The major components were the director, plotting room, and interconnecting data transmission equipment. The two systems, forward and aft, were complete and independent. Their plotting rooms were isolated to protect against battle damage propagating from one to the other.

Author:  David Latuch [ July 24th, 2014, 8:18 pm ]
Post subject:  Re: USN Systems (02/26/2013)

Thanks Henrik,

Yeah, I read that too. But it was also used on the South Dakotas and North Carolinas also. These two classes may have been retrofit. I guess what I'm trying to say is that knowing that the Iowas had the Mk-38 doesn't mean that they were necessarily the first to have them.

Author:  heuhen [ July 24th, 2014, 8:35 pm ]
Post subject:  Re: USN Systems (02/26/2013)

yeah you probably need to wait to Colo to get back on.. he have the knowledge on that era of US equipment.

Author:  David Latuch [ July 24th, 2014, 8:38 pm ]
Post subject:  Re: USN Systems (02/26/2013)

heuhen wrote:
yeah you probably need to wait to Colo to get back on.. he have the knowledge on that era of US equipment.
Just what i was thinking.

Author:  Charwhick [ October 9th, 2014, 8:28 am ]
Post subject:  Re: USN Systems (02/26/2013)

I hope I'm not out of line by saying the Browning .50 cal on this sheet leaves a lot to be desired, in my opinion.

[ img ]

I made this and I think it's more accurate, but that's up to everyone to decide.

Author:  acelanceloet [ January 2nd, 2015, 10:56 pm ]
Post subject:  Re: USN Systems (02/26/2013)

I am not entirely certain on the differences between a/b/c versions (I have my workfile saved so I can make amends if I am wrong) but here is a long awaited part.... the AN/SPG-55 Terrier director.
[ img ]

Author:  odysseus1980 [ January 11th, 2015, 10:13 am ]
Post subject:  Re: USN Systems (02/26/2013)

Which of these SPG-55 was used on Garibaldi CLG?

SPG-55C should be the last NTU variant for RIM-67 in 1980's.

I have seen some photos of Garibaldi CLG , but I am not sure if she had SPG-55A or -B.

Author:  heuhen [ January 11th, 2015, 1:50 pm ]
Post subject:  Re: USN Systems (02/26/2013)

odysseus1980 wrote:
Which of these SPG-55 was used on Garibaldi CLG?

SPG-55C should be the last NTU variant for RIM-67 in 1980's.

I have seen some photos of Garibaldi CLG , but I am not sure if she had SPG-55A or -B.

As ypu can see on this picture, it have only one small dish (or whatever it is) mounted next to the SPG-55, and it is only SPG-55A drawing that have it, SPG-55B and C have on both side.

[ img ]

Author:  odysseus1980 [ January 11th, 2015, 4:42 pm ]
Post subject:  Re: USN Systems (02/26/2013)

Yes, it seems to SPG-55A. The ideal is to find a photo taken from the oppsite side, but considering the timeline of conversion is very possible to be -A (1957-1961).

Author:  acelanceloet [ January 11th, 2015, 4:49 pm ]
Post subject:  Re: USN Systems (02/26/2013)

all versions, as far as I defined them:
SPG-55 - beam riding terrier - - pre 1980
SPG-55A - homing terrier
SPG-55B - SM-1ER - farragut
SPG-55C - - bainbridge, leahy, italians (post NTU?) (post 1980?)
SPG-55D - NTU (SM-2ER) - long beach and belknap (post NTU) - post 1980

I have yet to fully match the drawings with these 5 versions, but it migth be that there is just the basic SPG-55 with one dish next to the main antenna and all other versions look the same apart from a bit of paint.

Page 50 of 52 All times are UTC
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/