CONSTRUCTION OF SEA POLICE BOATS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00810A006400650001-2
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 21, 2016
• Document Release Date: August 27, 2008
• Sequence Number: 1
• Publication Date: May 4, 1955
• Content Type: REPORT

Approved For Release 2008/08/27: CIA-RDP80-00810A006400650001-2
CLASSIFICATION S E-C-R-19-T
CENTRAL INTELLIGENCE AGENCY REPORT
INFORMATION R RT
COUNTRY East Germany
SUBJECT Construction of Sea Police Boats
PLACE
ACQUIRIEO
DATE OF
INFO.
CD NO. 25X1
DATE DISTR. 4 May 1955
NO. OF PAGES 2
NO. OF ENCLS.
(LISTED BELOW)
THIS IS UNEVALUATED INFORMATION
i? !" 4w!NW Ver" 25X1
Berlin (Berlin Yacht- .iilding Yard) and manned by a yaxd crewlarrived in
Wolgast. The next four Schwalbe boats, No
to be transferred to Wolgast via Stettin. I
yacht- *.building yard ready to be transferre
their engines already built in were afloat, coats still were ashore,
while other boats were being bu' t in the shipbuilding shop, It was
defini ddd that the yackt- ilding yard should build a total of 42
Twenty-bne boats this total were scheduled to be
the Sea Police by 21 December 19557
to the building ins ruc ion group ILLEGIB
in Wolgast.
3. On 3 January ]L of the Schwalbe boats made a successful 25X1
shakedown ru* * den starting; from Wolggast. Subsequently,
the boat was hauled ashore and had its two propellers taken off. On this
occasion,, it was found out that the eta, n metal liners, shrunk on the 90mm
diameter
brackets
rest in
conventional steel bushings. This kind of bearing device had been adopted
because of the shortage of material and on the basis of suggestions made
to achieve improvements. It was decided that the former method of
construction should be resumed. Since it was impossible to suppjy the first
steel bushings prior to April 1955, a provisional sol
was found bd ordering that each of the plastic bearing
with six longitudinal grooves cut inside, 10 millimet
millimeters wide. Although the boats had been delivered to the Sea Police,
they must undergo another shakedown run after the final propeller shafts
have been fitted in. The shaft bearings for the boats, which had already
been delivered to the Sea Police, were in the making at the Yachtbuilding
Yard and would subsequently be ex bly group in Wolgast.
Ali W"
I "low
STATE
ARMY
NAVY
AIR
CLASSIFICATION
By $5RB DISTR- TiON
Approved For Release 2008/08/27: CIA-RDP80-00810A006400650001-2
 Approved For Release 2008/08/27: CIA-RDP80-0081 OA006400650001-2
scale.'
The following characteristics of the Schwalbe boata ilt 1'ry the
Yachtwerft Berlin were reported: Length 32 metera, beam 5.5 m,
draft 1.10 m, with a power plant of two 150-hp 6-c cinder Buckau-Wolf
diesel engines, two 22-hp Schoenebeck auxiliary engines, giving a
speed of 12 knots at a rate of 750 rpm(maximum number of revolutions)
without minesweeping equipment, and 6.5 knots with the minesweeping
equipment in tow. The* thickness was 4 mm, their complement
14, ar,theywere cap Il ~'+ rce 8 of the international
All boats will be equipped wi
in Berlin and a 100-Watt ship
For the time being, an artifi
to be installed
so be installed.
not be installed, and
the cover plates at the stern were welded tight at the time. An electric
control device was scheduled to be designed for the artificial fog apparatus.
Approved For Release 2008/08/27: CIA-RDP80-0081 OA006400650001-2
 Approved For Release 2008/08/27: CIA-RDP80-0081 OA006400650001-2
. '`* ' INTEIIl6iENCE AGID C'Y REPORT
INFORMATION REPORT Co
arrived in
ere lying in the
oat was to leave Berlin 25X1
four vessels with
still were ashore,
while other boats were being built in the shipbuilding shop., It was
definitely decided that the yacht-building yard should build a total
Schwalbe boats. Twenty-one boats of this total were scheduled ti be
c'e11versd to the Sea Police by 21 December 1955.
rpe vesee 1; OU14
manned by a and c
yacht .building yard ready to be transferred; Vw~
to be transferred to Wolgast via Stettin. In addition,
their engines already built in were afloat, four boats
Berlin (Berlin Yacht.?yiilding Brd) aii
'Nolaast, The next four Schwalbe boats
On 16 December 1954, the first
2. The first :.8 Schwalbe boats
3.
the boat was hauled ashore and had its two propellers taken off. On this
occasion, it was found out that the gun metal. liners, shrunk on the 90mm
diameter propeller abaft in way of the stern tubes and the tail shaft
brackets, had suffered serious surface damage,, In these boats the =run metal
rest in plastic bearing bushings, 15 m thick, instead of iumning in the
conventional steel bushings. This kind of bearing device had been adopted
because of the shortage of material and on the basis of suggestions made
to achieve improvements. It was decided that the former method of
construction should be resumed. Since it was impossible to supply the first
steel bushings prior to April 19559, a provisional solution to the problem
was found b,, ordering that each of the plastic bearing bushings be fitted
with six longitudinal grooves out inside, 10 millimeters damp and 20
millimeters wide. Although the boats had been delivered to the Sea Police,
they must undergo another shakedown run after the final propeller shafts
have been fitted shaft bearings for the boats, which had already
been delivered t~a Police, were in the making at the Yachtbuilding
Yard and would subsequently be exohaeged by an assembly group in V.'olgast.
The same damage to bearing bushings also was discovered on the 50hwalbe
boate b iil ~; by the Thaelmann Shipyard.
of 42
their crews already had
been assigned to the building ins ruction group at the sea-police
headquarters in olgast.
On 3 January 1955, vessel of the Schwalbe boats made a successful
shakedown run in the Creifawalder Bodden starting fromWolgast. Subsequently,
x u
CLASSIFICATION
STATE NAVY E
NSRB
FBI
DISTRIBUTION
Approved For Release 2008/08/27: CIA-RDP80-0081 OA006400650001-2
the Ivehteerf t
 Approved For Release 2008/08/27: CIA-RDP80-0081 OA006400650001-2
4? The following charactristics of the Schwalbe boats built by the
Yachtwerft Berlin were reported: Length 32 meters , beam 505 in,
draft 1 10 m, with ' power plant of two 150-hp 6-cylinder Buckau-Wolf
diesel en-fines, two 22--hp Schoenebeck auxiliary engines, giving a
speed of 12 knots at a rate' of 750 rpm(maximum number of revolutions)
without minesweeping equipment, and 6.5 knots with the minesweering
equipment in tow. Their U'_~e? 1 )ate thickness was 4 mm, their complement
14, and theywere capzble.f z sieting esea force 8 of the international
scale.
5~ All boats will be equipped with a mine-launching, track to be installed
in Berlin and a 100-Watt shipboard tz msmitter will also be installed.
For the time being, an artificial fog apparatus will not be installed, and
the cover plates at'the stern were welded tight at tiie time. An electric
control device was scheduled to be designed for the artificial fog ap;)e.ratus.
Approved For Release 2008/08/27: CIA-RDP80-0081 OA006400650001-2