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Old 12-01-10, 01:30 PM   #1
Jan Kyster
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ST-radar?

That's a new one to me?

Here's the manual for US WWII radars: http://www.hnsa.org/doc/radar/index.htm



A google of ST-radar: http://www.google.com/search?q=st-ra...rchBox&ie=&oe=

A Stratosphere Trophosphere radar...? Definitely not on any boat (yet), I'm afraid!
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Old 12-01-10, 02:19 PM   #2
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Quote:
Originally Posted by Jan Kyster View Post
ST-radar?

That's a new one to me?

Here's the manual for US WWII radars: http://www.hnsa.org/doc/radar/index.htm



A google of ST-radar: http://www.google.com/search?q=st-ra...rchBox&ie=&oe=

A Stratosphere Trophosphere radar...? Definitely not on any boat (yet), I'm afraid!

No, ST was a small radar attatched the attack periscope usually in RL.ST had a short range but enabled quick range reading of target.Came into service in late 44, believe it came standard on Tench class subs, Balaos and Gatos were outfitted with it in 1945.

The TMO mod has ST radar for Tench class submarines on the observation scope.Maybe one day ducimus will make it an upgrade for all subs in late war, that would be ideal.
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Old 12-01-10, 02:57 PM   #3
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Never heard of ST Radar. Doesn't even appear in my WWII radar book. Unless, of course, it is known by a more familiar alias.
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Old 12-01-10, 03:13 PM   #4
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Originally Posted by WernherVonTrapp View Post
Never heard of ST Radar. Doesn't even appear in my WWII radar book. Unless, of course, it is known by a more familiar alias.

USS Barb had one in 1945.....Fluckey managed to get one as mentioned in his book, used it well.O Kane tried to get one but couldnt as they were new and in short supply in Oct 1944before Tang's last patrol
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Old 12-01-10, 03:21 PM   #5
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Here's the info from my Info Boxes mod. The only thing I added was the stuff in Notes: and Info:


ID= UpackSTRadar
NameDisplayable= ST Radar
FunctionalType= UpFTypeSensorPeriscope
UpgradePackSlotType= AdvPeriscope
Type=NULL
UnitUpgradePackIntervalOptionCurrent= NULL, NULL, 0
UnitUpgradePackIntervalOptions1=1944-07-01, 1944-12-31, 3000
UnitUpgradePackIntervalOptions2=1945-01-01, NULL, 1500
IDLinkUpgradePackElements= ObsPeriscopeST
Info=Maximum Detection Range for:|Battleships - <b>5 miles</b>|Cruisers - <b>5 miles</b>|Destroyers - <b>3 miles</b>|Submarine - <b>3 miles</b>
Notes=Perisocope mounted for tracking and attacking targets while submerged and in very low visibility. Has provisions for IFF (Identification, Friend or Foe) capability.
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Old 12-01-10, 03:43 PM   #6
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Quote:
Originally Posted by Bubblehead1980 View Post
USS Barb had one in 1945.....Fluckey managed to get one as mentioned in his book, used it well.O Kane tried to get one but couldnt as they were new and in short supply in Oct 1944before Tang's last patrol
Perhaps it was also known by an SCR type? There were a lot of radar systems that went by more than one name/acronym depending on what branch of service was using it, and for what purpose.
I did find a reference to it on the USS Pampanito website. Now I gotta find out more about this. Either it isn't in my book or, just isn't in the index and goes by some different name. Too many pages to flip through again. Anyone have any good reference points to start from?
Ah, OK, just learned a little more about it. It was incorporated into the SV radar system and used a morse code key to activate it. The code key, I believe, was located on the periscope and it sent out a short radar pulse. I'm still checking on it though.
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Last edited by WernherVonTrapp; 12-01-10 at 04:23 PM.
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Old 12-01-10, 04:34 PM   #7
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Specs for the ST radar can be found here: http://www.maritime.org/radio-st.htm

Norman Friedman's "US Submarines through 1945 gives production starting in July 1944, by March, 1945, 139 sets had be delivered and 95 sets installed. IIRC, the set was first installed November, 1944.

The USS Lionfish had an ST set on her first war patrol, March 19, 1945.
http://www.battleshipcove.org/ss298-warpatrol1.htm

You could also try a forum search, the ST was mentioned several times 2007-08.
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Old 12-01-10, 07:37 PM   #8
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To help you with your research, the type of periscope the ST was mounted on was called

93KN-36/3.75

You could try researching on that term.
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Old 12-02-10, 04:15 AM   #9
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Quote:
Originally Posted by Takao View Post
Specs for the ST radar can be found here:

The USS Lionfish had an ST set on her first war patrol, March 19, 1945.
Excellent. Thank you for all response.
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