CZECHOSLOVAK SHIPYARD PRODUCTION FOR THE USSR

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00046R000400370004-3
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 4
• Document Creation Date: December 27, 2016
• Document Release Date: June 24, 2013
• Sequence Number: 4
• Publication Date: March 24, 1955
• Content Type: REPORT

Ams.
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/24: CIA-RDP82-00046R000400370004-3
COUNTRY Czechoslovakia
THE SOURCE EVALUATIONS IN THIS REPORT ARE DEFINITIVE.
THE APPRAISAL OF CONTENT IS TENTATIVE.
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24 March 1955
CENTRAL INTELLIGENCE AGENCY
INFORMATION REPORT
Cm~PI-F-ImT--E N-T?I-A-L
This material contains information gf[ecting the Na-
tional Defense of the United States within the mean-
ing of the Espionage Laws, Title 18, U.B.C. Secs. 793
and 794, the transmission or revelation of which in
any manner to an unauthorised person is prohibited
by law.
REPORT NO.
DATE DISTR.
NO. OF PAGES
REQUIREMENT NO.
REFERENCES
Czechoslovak Shipyard Production
for the USSR
C-fJ-N-F?I~Ib NmT-I A-L
N AVY X AIR' jfXj FBI I-LAEC
(NOTE: Washington distribution indicated by "X"; F;.c'H d st,;bution by "#".)
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/24: CIA-RDP82-00046R000400370004-3
 Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/24: CIA-RDP82-00046R000400370004-3
50X1
SECRET
DEFECTOR RECEPTION' CENTER
COUNTRY Czechoslovakia
DATE DISTR. 23 Des 1954
SUBJECT Czechoslovak Shipyard Production NO. OF PAGES 3
for the USSR
DATE OF INFORMATION
PLACE ACQUIRED
THIS IS UNEVALUATED INFORMATION
SOURCE
River Tugboats
REFERENCES:
50X1
1. The Skoda Shipyards in Komarno 1 (N 47-46, E 18-08) were building
tugboats for.the Soviet. Ministry of River Fleets. The first order
was for 15 tugboats. Work on this order was begun sometime in
1948 or early 1949. The Navika firm in Prague designed the boat.
and the first tugboat was handed. over to th~ Soviet representatives
in Komarno in the spring or summer of 1952. Until the summer
of 1954 the' total number of tugboats ordered was 50; it was
believed the orders would' continue indefinitely. In August 1954
the fifteenth and sixteenth tugboats were completed in the'ship-'
yards. The Moravian Electric Works (MEZ), National Enterprise,
in Vse.tin (N 49-,20k E 18-00). delivered the electrical equipment
for the nineteenth tugboat in the summer of 1954,'
2. The tugboats were equipped with two diesel engines of the 6L275
type, a product of the Skoda Works in Prague-Smichov.The engine
was the same as that used i~ the river passenger- ships, and-the
transmission was mechanical the
manufacturer-of the transmission. e e e w em,, most 50X1
probably, a product of the Skoda Works in Hradec Kralove, and.
were. set into Cort nozzles. MEZ Vsetin supplied the motor
generator set. for the rudder drive, a motor for the tug rope,.
motors for the windlass used for the anchor chains, and generators
for the tug's electric network (DC, 100 v). The motors and
generators were of the M 17, M 22,and M 28 types. The tugboat
was about 35 meters long and had an unusually high stem. The
Soviet representatives were very satisfied with the river tugs.
SECRET
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/24: CIA-RDP82-00046R000400370004-3
 Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/24: CIA-RDP82-00046R000400370004-3
SECRET ' I
Maritime Tugboats.
In the first half of 1952, MEZ Vsetin received an order for main
electric drives and auxiliary electrical equipment for 21 maritime
tugboats destined for the USSR which were to be built in the Skoda
Shipyards in Komarno, The design was to be made by the N
ik
av
a
firms The boat was to be equipped with two diesel engines of the
6L275 type (the same as used in river passenger ships and river
tugboat, each engine to be connected to a generator. The two
generators were to feed one electric motor which was to drive
one propeller, It was decided in the summer of 1952 that CKD
Stalingrad in Prague-Vysocany would produce the main electric
drive instead of MEZ Vsetin, The CKD plant was to use the type
.of generators they had developed for the diesel-electric locomotive
of the T 434 type, a switching locomotive manufactured by CKD
Stalingrad. About one or two of these locomotives were manufactured
after 1948. MEZ Vsetin was still to manufacture the machinery for
the boat?s electric network which was to be 220 v DC,
The tugboat was to be equipped with an automatic windlass drive
for the, tug rope. The cylinder of-the windlass drive was to be.
held in balance by the torque of an electric motor and was to a 4-
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ass spring., winding and unwinding the tug rope according to the
degree of strain put on the.rope during navigation" The generator
ofthe electric motor was to be driven by a diesel engine. This
electric equipment was to be designed by CKD Stalingrad and manu-
factured by MEZ Vsetin, Originally, MEZ Vsetin proposed that the
generato,r.for,the windlass drive be driven by one of the main diesel
engines rather than by a special diesel engine,and MEZ Vs tin was
prepared to design this equipment; however, the MEZ Vsetin proposal
was not accepted by the Navika firm, However, during the first
half of 1953, the_ entire..order for maritime tugboats which had
been placed in Czechoslovakia by the Soviets was cancelled,
The "Bobru: sk" Tii boa t
5. A tugboat which had, sunk in the Danube River was removed by the
Soviets and put under reconstruction In the Skoda Shipyards in
igin
..+ vast oa ~, 1 t s original
name, the s n 1 or the date it was removed from the river.
The name given the tug was O'Bobruysk" and the Navika firm made
the blueprints for its reeonatructioa, The tug was to be equipped
with two diesel engines,, each 900 hp at 400 rpm, source did not
know the make. Ea~.~a engine was to drive a propeller by means of
an electromagnetic Couplings Specifications for these couplings were
computed by CKD Stalingrad; the couplings were designed and manufactured
by MEZ Vse,?tin, The main parts were finished in August 1954, The 50X1
Inter pal part of the induction Motor was an iron block and not
plaminted, as was the usual case with induction motors. The rudder
,a
b
th
tria
y
at time,
the "Bobruysk", with its 1,800 hp, would be 'the argest
type of tugboat on the Danube River, Other tugboats he had heard
of had only up to 1,500 hp, As of August 1954, no equipment had
been installed in the tugboat, Rumors about
o
p
ssible cancellation
of the whole reconstruction job had been circulated during the last
few years; source heard the latest rumor in the summer of 1954.
Namel
6. During the first half of 1952, the Skoda Shipyards in Komarno
..made preparations for a production program called "Hamel". Ship-
yard technicians (hone of whom were executives) told source that
.Hamel" was a cover name for a submarine-building program for the
TJSSR. Part of a one-story wooden barracks, about three rooms,
SECRET
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/24: CIA-RDP82-00046R000400370004-3
 Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/24: CIA-RDP82-00046R000400370004-3
SECRET
50X1
in the shipyards which had been used as offices for the Navika
firm was vacated in the summer of 1952, allegedly to be used as
a reference and storage room for blueprints relating to the
"Nemel' program, The. windows were barred and. locks were rein .-.
forced. A guard, a member of the shipyard Plant's Guard, was
posted at the barracks and entry was forbidden. The other part
of the barracks was still used as a dispensary. In autumn 1952
who went to the Skoda
e, that the entire "Namel"
.1 1
program had been cancelled
program
after that time.
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50X1
on the stern, two on the bow, and one on each side, Each anchor
chain was operated by one DC electric motor fed by one generator
and there were three. AC motors to drive the six DC generators.
It was planned to install equipment for setting the anchor chain
windlass. into operation automatically, so that the dredge would
Suct$.on Dredge
7, The shipyards in Prague-Liben built suction dredges for the USSR.
This was the main building program of these shipyards. The design
was prepared by the Navika firms The suction pump was driven by
a diesel engine ( ) and the output of
sand, mud, dtc., mixed with water, was cubic meters per minute.
Starting,. with the twenty-first dredge, the output was to be 500
cubic meter-s per minute. Electricity for the dredge's electric
network was produced by a generator for AC current driven by a
diesel engine (make of diesel engine and generator was unknown to
source). The network fed a Ward-Leonard motor generator set,
which produced DC current for the DC motor-windlasses used to
operate the anchor chains, The anchors were placed by small boats.
The dredge was moved by winding the anchor chain on the motor
windlass cylinder. There were six anchors on each dredge; two
move to another place when. the suction pipe was not operating
at full capacity. The equipment was manufactured by the Krizik
.enterprise in Prague-Karlin and was tested on the first dredge.
Source did not know whether the equipment proved to be satisfactory
or not and therefore did not know if it was actually installed in
.the dredges,
All DC generators and motors for the dredges were MEZ Vsetin
products. The rooter, placed in the suction pipe, was driven
by an AC,three-phase, commutator motor (stator-fed, Winter
Eichberg tyyppe), 38 kw. at 900 rpm (51 hp), regulated down to
604 rpm. This was a MEZ Vsetin product. Because the Soviets
did not have any river navigation standards for AC commutator
motors,, they applied the standards used for DC. motors, and thus
objected to the slight sparking of the AC commutator motors.
(Practically no sparking was allowed in DC motors but slight
sparking was quite common in AC motors.) Therefore, negotiations
were under way to replace the AC commutator` motor for the rooter
drive with an induction motor with resistance in. the rotor circuit
or with a Ward-Leonard set.
10. The first dredge was near completion at the beginning of 1953.
As of summer 1954, MEZ Vsetin had delivered electrical equipment
for a total of 10 to 15 dredges. It was believed that the Soviet
orders would continue indefinitely. The dredges were transported
to Germany on the Vltava and Elbe Rivers. -Their final destination
50X1 was unknown to source,
1
Oommenta When building activities at the Skoda Shipyards
in 'omarno are mentioned, the reference is to the new section since the
old shipyards do repair work only.
SECRET
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/24: CIA-RDP82-00046R000400370004-3