SOVIET MODELS YAM AND R-1 RIVER MINES

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00457R008300130011-8
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 14, 2016
• Document Release Date: January 12, 2001
• Sequence Number: 11
• Publication Date: July 19, 1951
• Content Type: REPORT

Approved For Release 2 J0
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`fir .NCES
2 --ENCLOSURES (Mo. & TYPE)
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1. notebook seas in a soviet naval billet at 27 Konalstrasse, Korneuburg,
on 17 February 1951 contained the following data on Soviet models Yay;
and R-1 river Trines:
Description of the ::oriel YaI.: "line:
ei-ht of char[-e: 0.20 kg.
= ax.Lmun mooring depth: 50 meters.
I'ininura :ooring depth: 2.5 meters.
Length of mooring cable: 53 meters, diameter 3.5 r, .
t.1aximum speed for minelaying: 21 knots.
:i:ne spacing: 20 me Lers .
Tip e required to aim the mine after laying: 10 to 20 minutes to
dissolve the soluble sugar plug.
Lenrth of mine: 675 to 680 nri.
"=idth of mine: 580 rim.
Height of mine: 970 to 980 mm
Total weight of mine: 175 kg.
;eight of live mine; 62 kg.
Uei :ht of -anchor: 113 kgn
Time required for Preliminary operations: 5 minutes.
Ti'-:o required to set mine: 2.5 minutes.
Life of mine: 5 .~onths.
The mine consists of the fo11o.,ing parts:
h`ine case with explosive charge.
Detonator chsrirber.
Detonator.
i:otonator handle
Sa ety cartridge.
Three galvanized horns ith safety devices.
Soluble s ut ar--plug.
Dry cell battery (sic)
i ine anchor with moor ng cable and tzechanica1 depth-; etting,; ear.
,sugar I. 1 and I 2 (sic)
Length of plummets 2.5 meters.
eiE :ht o f plummet t 10 kg
Length o f one winding of pl urarret cord: 250 ram
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Approved For Release 2001/03/06 . -8
 Approved For Release 2001/03/06 : CIA-RDP82-00457R008300130011-8
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SLCRET-CQN?;TROL/US )F.F1CT4.T,~"' Y
Desen pLion of the Model R-1 Mire:
Moored mine, weight 275 kg, weight of anchor 160 kg, weight of
explosive charge 40 kg,
Weight of live mine: 3.15 kg.
T 1 os1ve charge: ` ?rotyl (Troti.l),
Maximum speed for n.inelayings 21 knots.
]aximum mooring depth: 30 meters.
L.'inimum mooring depth: 1.8 meters.
Laying is done automatically with a depth setting of 005 to 0,,2 meters,
Length of mooring cable: 35 meters for cable 4.8 mm in diameter.
21 meters for cable 6.2 mmn in diameter.
Mine spacing: 20 meters,
L+uoyrncy reserves 1O hours
Tiiire required to aim the Lames 15 to 20 minutes.
Rising speed of mines 0.17 meter/see.
The nine consists of the following parts:
:Nine case with explosive--charge.
Detonator chamber.
Two C;alvanized horns.
Safety device.
Mechanism of mine.
Anchor.
Soluble sugar plug with check rope and turnbuckle.
Sugar.
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Com i ent, The woi ht of 0.20 kg mentioned in connection with
the charge of the model Ya M nine is probably a mistake and should
read 20 kg. the term buoyancy reserve of hO hours per host in the
description of the R-1 mine is not clear. The type designations
of the two mines were not previously known.
ECR1,T-CON TROL/u3 OT?LY
Approved For Release 2001/03/06 : CIA-RDP82-00457R008300130011-8