Yak 18T Flight Operations Manual
Page 2 of 82
Disclaimer: This manual is to be used as a reference only, it is based on translated Yak 18T Flight Operations
Manuals and has not been approved by the Yakovlev Design Bureau or any other authority.
Table of Contents
TABLE OF CONTENTS.................................................................................................. 2
INTRODUCTION......................................................................................................... 5
Disclaimer...............................................................................................................5
SECTION 1 – BACKGROUND INFORMATION .................................................................... 6
1.1. Introduction.....................................................................................................6
1.2. Purpose ...........................................................................................................6
1.3. Collapse of the Iron Curtain...............................................................................7
1.4. The Aircraft......................................................................................................7
1.5. The Fuel System...............................................................................................9
1.6. The Control Panel ...........................................................................................10
SECTION 2 - TECHNICAL INFORMATION ...................................................................... 11
2.1 Performance....................................................................................................11
2.2 Dimensional Characteristics of the Yak 18T........................................................11
2.3 Fuel Specification and Octane Number...............................................................13
2.4 Carburettor .....................................................................................................13
2.5 Fuel Pressure in front of Carburettor .................................................................13
2.6 Petrol Pump ....................................................................................................13
2.7 Fine Filter........................................................................................................13
2.8 Oil Grade ........................................................................................................13
2.9 Oil Consumption..............................................................................................13
2.10 Oil Pressure...................................................................................................13
2.11 Oil Inlet Temperature.....................................................................................13
2.12 Cylinder Head Temperature ............................................................................13
2.13 Magnetos......................................................................................................13
2.14 Spark Plugs ...................................................................................................13
2.15 Propeller .......................................................................................................14
2.16 Main Flight Performance at Standard Conditions ...............................................14
2.17 Airfield Performance.......................................................................................14
SECTION 3 – OPERATIONAL LIMITATIONS ................................................................... 15
3.1. Flying Limitations............................................................................................15
3.2. Operational Loading........................................................................................15
3.3. Crosswind Components...................................................................................15
3.4. Weight and Balance Data ................................................................................15
3.5. Other Limitations............................................................................................16
SECTION 4 - PRE-FLIGHT INSPECTION........................................................................ 17
4.1. Preliminary Pre-Flight Actions...........................................................................17
4.2. Relevant Documentation .................................................................................18
4.3. Performing the Inspection ...............................................................................19
SECTION 5 – ENGINE START PREPARATION ................................................................. 27
5.1. Hydraulic Lock/Shock Avoidance ......................................................................27
5.2. What is Hydraulic Lock/Shock?.........................................................................27
5.3. The Consequences..........................................................................................27
5.4. What can be done?.........................................................................................28
5.5. Other Solutions...............................................................................................28
5.6. Conclusion .....................................................................................................29
SECTION 6 – ENGINE START ..................................................................................... 30
6.1. Prior to Starting the Engine .............................................................................30
6.2. Avoiding Hydraulic Shock ................................................................................30
6.3. Engine Priming ...............................................................................................30
6.4. Engine Starting...............................................................................................31
6.5. Engine Warm-up.............................................................................................32
6.6. Taxiing to the holding point.............................................................................33
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