1. AIRCRAFT STORAGE METHODS 2. AIRCRAFT FUELS, LUBRICANTS AND FIELDS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00047R000100070010-1
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 27, 2016
• Document Release Date: April 29, 2013
• Sequence Number: 10
• Publication Date: September 12, 1951
• Content Type: REPORT

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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr2013/04/29 : CIA-RDP82-00047R000100070010-1
CENTRAL INTELLIGENCE AGENCY REPORT NO.
INFORMATION REPORT
COUNTRY Hungary
SUBJECT
PLACE
ACQUIRED
DATE
ACQUIRED BY SOURCE
DATE OF INFORMATION
1. Aircraft Storage Methods
2. Aircraft Fuels, Lubricants and Fluids
THIS DOCUMENT CONTAINS INFORMATION AFFECTING THE NATIONAL DEFENSE
OF THE UNITED STATES, WITHIN THE MEANING OF TITLE IN, SECTIONS 793
AND 794, OF THE U.S. CODE, Al AMENdED. ITS TRANSMISSION OR REVE-
LATION OF ITS CONTENTS TO OR RECLIFT MY AN UNAUTHORIZED PERSON IS
PRONINITED BY LAW. TOE REPRODUCTE, OF THIS FORM ES PROHIBITED.
SOURCE
IM195 NO. 51-4D
CD NO.
50X1
DATE DISTR. a Sep 1951
NO. OF PAGES 2
NO. OF ENCLS.
(LISTED BELOW)
?
SUPPLEMENT TO
REPORT NO.
50X1
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THIS IS UNEVALUATED INFORMATI(50X1
1. When an aircraft was prepared for short term storage, no equipment, except the
battery, was removed. Protective KV-type grease was used against corrosion on
the unpainted sections and junctions of the aircraft. Prior to application,
MS-type grease was mixed with-oil. All rubber parts on the aircraft, including
the tires were covered with talcum powder. The exhaust stack outlets were covered
with metal cups after the interior had been sprayed with oil. The engine section
and the cockpit were covered with a tarpaulin. The tires also were covered with
canvas, after they were raised on wooden boards and the movable surfaces secured
with wooden blocks.
2. All engines which used 95 or 87 octane gasoline were drained of fuel and refilled
with 72 octane gasoline. The engine was run for five minutes at 1600 RPM and the
oil replaced with fresh oil of the same type. After the oil was changed the engine
was again run for about three minutes. The next step was the removal of the spark
plugs, after which the interior of each cylinder was sprayed with 150 grams of
MS-type oil. The spark plugs then were replaced and the propeller rotated five
or six times. The spark plugs were removed a second time and the interior of
each cylinder again sprayed with 150 grams of oil. The engine blower was moved
to the second position in order to relieve tension on the blower's springs. In
addition, the engines were pickled with MS-type oil by means of the crank case
drain. A hand pump which contains 4o liters of oil was used for this purpose.
The engine of the aircraft was entirely stationary during this process. After
the engine was pickled, the cooling liquid VW drained. The propeller of the
aircraft was rotated once a week while it was in storage and the tires were re-
moved once a month.
3. Every 30 days the storage procedure described above was repeated. At that time,
the engine cover, the exhaust stack covers and the spark plugs were.removed. The -
plugs were replaced atter they had been cleaned with gasoline. Cooling fluid was
added, the batteryinstalled and the engine started. After the engine had run
for 10 to 15 minutes the pickling procedure was repeated.
140
An aircraft was flown for about 10 to 15 minutes about every 90 days.
flight it was returned to storage if the performance was satisfactory.
an aircraft was not kept in storage over rour
montns. Two individuals were able to complete the preparations for storage of an
aircraft in about six to eight hours and withdraw an aircraft from storage in about
the same period of time. 50X1
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CLASSIFICATION
SECRET
SECRET
STATE
ARMY
DISTRIBUTION
( 20 I
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr2013/04/29 : CIA-RDP82-00047R000100070010-1
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Declassified in Part - Sanitized Copy Approved for Release 50-Yr2013/04/29 : CIA-RDP82-00047R000100070010-1
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5. The Hungarian Air Force normally used 95, 85 and 72. octanegasoline. The 95 octane
gasoline was light red and had an almond odor. The 87 octane gasoline was both light
red and blue, also with a almond odor. The 72 octane gasoline was not colored and
only had a faint almond odor. I don't know the dyes which were used for color coding.
In order to obtain a higher octane rating, one liter of American Ethyl Fluid or two
liters of Soviet fluid was added to 100 liters of ordinary gasoline. The gasoline
used in the various types of aircraft engines had the following octane ratings:
VK-107, in the nooecoasavaopoo
VK-107, in the YAK-9......... 000000000000000
AM-42? in the IL-10........00 .000000000.00000
ASH-21, in the YAK-11........ ...............
ASH-40, in the LT-2 &.DC-3..... 000.000000000
ARGUS, in the ARADO-96......... .............
Walther Minors in.the ZLflOOOO
Hirth, in the Bucker Jungman?. .............
M-11K, in the YAK-18...000000.0 ............,
M-11D, in the TiT20000000000000000000000006
100 octane
95 octane
95 octane
87 octane
87 octane
87 octane
87 octane
87 octane
72 octane
72 octane
6. All aircraft in the Hungarian Air Force used Soviet types of oil. MS-type was used. in
summer, MK-type for spring and autumn, and MZS for winter. KV Soviet-type grease was
used in all aircraft.
7. The hydraulic fluid used in the aircraft was 70% glycerine and 30% alcohol- It had
sludge forming tendencies and was changed every week. This fluid, also was used in the
landing gears of the ARAD0-96, but only in the landing gear shock absorbers of the YAK-9,
YAK-11, YAK-18, IL-10 and the IL-2. The same type of fluid was used in the anti-icer
systems. The engine coolant used in the IL-10 and the YAK-9 was compoSed of 63 liters
of water to three grams of Ethyl Eneglykol or Krompik (K2CO207). When Ethyl Englykol or
Krompik was not available, potassium permanganate was used.
-end-
SECRET SECRET
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr2013/04/29 : CIA-RDP82-00047R000100070010-1