1. DESCRIPTION OF THE LOT PLANT AT OKECIE AIRFIELD IN WARSAW 2. MISCELLANEOUS OBSERVATIONS AT OKECIE AIRFIELD

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80T00246A071800010001-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 7
• Document Creation Date: December 27, 2016
• Document Release Date: April 15, 2014
• Sequence Number: 1
• Publication Date: February 20, 1964
• Content Type: REPORT

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CENTRAL 1NTELLiGENCE AGENCY
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This material contains Information affecting the National Defense of the United States within the meaning of the Espionage Laws. Title
18, U.S.C. Secs. 791 and 794, the transmission or revelation of which in any manner to an unauthorized person is prohibited by law.
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S-E-C-R-E-T
NO FOREIGN DISSEM
COUNTRY Poland
SUBJECT 1. Description of the LOT Plant
at Okecie Airfield in Warsaw
2. Miscellaneous Observations at
Okecie Airfield \
DATE OF
INFO.
PLACE &
DATE ACQ.
REPORT
DATE DISTR.
20111E0
1964
NO. PAGES 6
REFERENCES
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THIS IS UNEVALUATED INFORMATION SOURCF GRADING'S ARF DFFINITIVF APPRAISAL OF CONTENT IS TENTATIVE
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1. The accompanying sketch shows the location of the buildings comprising the
Polskie Linie Lotnicze (LOT) Plant at Okecie Airfield (Nos. 6-18 on sketch);
and the locations of other buildings and/or areas on the field, which are men-
tioned below. Information about the plant and description of some of its com-
ponents and functions are included. 50X1-HUM
[71:She LOT Plant at Okecie Airfield formed an independent section under LOT. At
the plant, LI-2(0AB), IL-14 (CRATE), 4-18 .(C00T) military transport and VIS-
COUNTS are given periodic overhauls and/Or maintenance. Airplanes belonging
to LOT and to the Polish Army, LI-2's and IL-14's, and their engines, desig-
nated ACH-62 and ACH-82 respectively, are given extensive overhauls. Plans
were underway to expand the plant in 1964 to handle the repair of Pratt en-
gines. Approximately 400 men were employed in the plant in mid-1963.
3. Sections of the plant are designated as follows:
TRP: Technological section and engineers'offices (administration building)
(No. 15 on sketch).
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T-1: Workshop for overhaul and maintenance of aircraft (No. 8 on sketch).
T-2: Workshop for complete overhaul of aircraft (No. 6 on sketch).
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STATE I DIA Ev I ARMY
NAVY
'Am # rNsA
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GROUP I
Excluded from automatic
downgrading and
derlassilitation
I ORE EV
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(Note: Field distribution indicated by
1111111111111111110.
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T-3: Workshop for engine repair and testing building (Nos. 14 and 17 on
sketch).
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T-4:. Workshop for overhaul and repair of aircraft instruments (No. 8 on sketch)
N-E: Unknown.
4. The plant had its own administration department, which was located in the ad-
ministration building (No. 15 on sketch). In mid-1963 this department had two
managing directors--an administrative director and a technical director--both
of whom had their offices on the first floor of the administration building.
5. The administration building was white, and was three stories high. A guard
room, offices of supervisory personnel, a cashier's office, and a library
were located on the first floor. The second floor contained offices for engi-
neers, and possibly a drafting room; and the third floor, a technical section,
a purchasing office, and a stock room for spare parts. A ground plan of the
building appears below.
main entrance
guard room
cashier's office
offices
of the
directors
library staircase
In the engine repair workshop (No. 14 on sketch) the ACH-62 and ACH-82 engines
were given complete overhauls. The machinery in the workshop was small and
much of it was worn out. As a result many of the work processes in the shop
were carriedioutAth simple hand tools. Nachinery in the shop included an
American hoteiaihine for hydraulic cylinders (the workshop's only machine of
Western origin); a cylinder hote machine for engine cylinders (East German);
an exhaust system in the paint shop; and a sandblast machine. Good care was ?
given the American hote machine, which was not the case with machines of East
German and Soviet origin. The East German hote machine gave the workers a lot
of trouble. The exhaust system and the sandblast machine, which had been de-
signed and built by the plant, were often defective.
7. The engine repair workshop had a sectional manager, under whom there was a
foreman, whose job it was to coordinate the individual workshop units. The
shop occupied a modern building, with large windows and an excellent aircon-
ditioning system. Within the building there was also a supply depot, contain-
ing 20 or 30 ACH-82 and about 10 ACH-62 engines, some of which were new, others
repaired, and some defective. A sketch of the shop appears on page 3.
8. The testing building (No. 17 on sketch) contained two testing stands for pi-
ston eyines, and a traveling craned- Normally engines, including AGI-1-62 and
ACH-82,were tested each day. Sketches of the testing building and the heating
system under the control room of the building appear on page 3.
cY. During the unusually hot summer of 1963 in Warsaw there often was trouble with
the cooling of the engines. Several times plant workers tried to replace the
fixed oil coolers on the testing stands. This did not work and testing had to
be made at night. During the winter, on the other hand, the cooling air for
the engines must be heated. This was accomplished by closing the grates (1)
and leading the air through the floor grates (2) and through a basement chan-
nel, where the air is being heated.
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? Sketch of engine repair workshop
greasing
Sketches of
testing
building
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eqvipment
roreej..
man
iper-
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checking by
gauging,,
weighingo ,et
electro- sand- cleaning
plating blasting
fluxmeter
section A-A
grates in an oblique
position (1)
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? grates in
the floor (2)
air heating device
10. The workshop in which aircraft were overhauled (No, 6 on sketch) contained a
hangar, which could accarmDdiate two planes, and a depot containing fuselage
and wing sections. A sketch of the building appears below,
re For a e
And-whrgies6ioner
/
IplttI
e wo k
workshop under construction
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Il. The workshop for overhaul and maintenance of aircraft (Vo. 8 on sketch) con.,
tamed workshops for aircraft maintenance, Instrument maintenance laboratories
offices, and a hangar, which couldjaccominodzite /two or three aircraft. Instru-
ments Were mainly tested in the instrument Maintenance laboratories?no ac-
tual repairs were made here. The testing instruments were either of_Polish
or Soviet origin. A sketch of the building appears below.
nstrument maintenance
aboratories
12, The guardl building (No. 18 on sketch) was used by all guard personnel, re-
sponsible for the area around the planOThese guards patroled the entire
area with the exception of the spaces between buildings day and night. They
were armed and often challenged persons passing between buildings demanding
their identification. Military guards were posted at all military aircraft.
A sketch of the guard building appears below.
If
13. A workshop under construction (No.'7 on sketch) contained some offices for
engineers. Construction of the roof was underway in the summer of 1963.
14. Other buildings at Okecie Airfield are:
a. Two or three hangars (No. 9 on sketch). 1L-14 (CRATE) were seen perma-
nently within the area.4
b. A factory in which sports and jet trainers were produced (No. 1 on sketch
? The trainer was bulky and short, and took off on a short strettn.On seve-
ral occasions, hIG jets were pulled out from one of the buildings com-
prising the factory.
. Aire station (No. 5 on sketch), which contained garages for tWo or
three fire engines.
15. Following is a description of the steps involved in complete overhaul of
aircraft:
1. The engine is placed on the testing stand, where it remains for about
five hours. During this time the oil pressure, gasoline pressure, char- -
ing, ignition, and temperatures at various speeds are checked. Oil fil-
ters are removed and examined for metal particles, and during the last
three hours of the testing, gasoline and oil consumption, propeller
functions, regulator and starter are being checked.
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2. Cylinders are cleaned--by sandblasting--on the outside, and the inner
parts with petroleum and soapy water.
3. All parts are gauged and weighed.
4. Heavily loaded parts, such as crankshafts, connecting rods, pinions, and.
axles are tested with fluxmeters. Parts of light metal, for example the
crankcase, are tested for color absorption ("the yellow-red method").
5. Various repairs, such as grinding, replacement of other linings, paint-
ing, chromium-plating.
6. During and after the assembling all bolts are secured with wire.
7. The engine is re-tested almost as is explained in point 1. The filters
are especially examined.
The cylinders corresponding to the main connecting rods, the injection pump,
and the packings between the accessories and the engine were especially exposed
and weak parts. The spare parts mainly came from East Germany. Previously
many spare parts came from the USSR. New engines came from Czechoslovakia.
16. The technical data on the ACH-82 engine, cited below) was taken from a manual
issued in Karl-Marx-Stadt in 1961:
The engine has 14 cylinders, arranged in two circles, and the fuel is injected
directly into the cylinders. The system includes a fuel feed pump, injection
pump, and nozzle. The fuel feed pump also pumps gasoline into an injection
nozzle in the throttle house (this system is only used at take-off). The engine
also has two magnets and distributors (high tension ignition system). Regulation
of number of revolutions takes place by a regulator, placed over the reduction
gear. The regulator receives oil from the foremost oil pump, which delivers a
higher oil pressure than the rear pump. Otherwise the make-up of the engine
corresponds to the Pratt engine (double wasp). Its maximum numbnr of revolu-
tions are 2700 revolutions a minute.?,-At take-off the engine_ '
may turn 2600 times a minute in maximum 30 seconds, but it usually turns only.
2500 times a minute. At 2600 revolutions a minute 1900 horse power. is deve-
loped. A new engine can run 500 hours before needing a complete overhaul. It
can then run 400 hours between ,each succeeding overhaul. Absolute maximum rtn-
fling time is 2500 hours.
Comments.
1. Two traveling cranes were needed.
2. The Pratt engine possibly also was tested,
3. There probably were 20 men or more in the area.
-4, The buildings probably were reserved for IL-14 military transports.
Only a few workers appeared to be working in the buildings.
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Key to attached sketch
1. Military section for MIG jets.
2. Possibly a test building.
3. Civilian airport buildings.
4. Parking lot for tank trucks.
5 Fire station.
6. Workshops for overhauling aircraft.
7, Workshops, a hangar under construction, and offices.
8. Aircraft maintenance and instrument maintenance laboratories.
9. Hangars for military IL-14 transports.
10. Depot buildings.
11. Power plant.
12. Basin for cooling water.
13. Depot (?).
14. Repair and maintenance for piston engines ACH-62 and ACH-82.
15. Administration building.
16. Small building (probably connected with the tank installation for testing
stand No. 17.
17. Testing building.
18. Guard center and main entrance.
19. Workers' residence and canteen.
20. Residences-and shops.
21. Single-track railway. (extensive freight traffic was seen only).
22. Singlertrack railway. (used for transporting supplies to the workshops and the
neweonstruetion areas.)
?
lytribution of Attachment (3 copies of 1 sketch):
ORR
Dk
4.
3,
2.

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