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ROOLS-ROYCE MERLIN

Engine Maintenance Manual

Derby, England, 1946

ROLLS-ROYCE

MERLIN

Two-stage, Two-speed

AERO ENGINE

MAINTENANCE

MANUAL

THIS PUBLICATION EMBRACES

MERLIN

61, 66, 67, 70, 71, 72, 73, 76, 77

85, 100, 104, 113, 114, 130 and 131

The Merlin 63, engine not specifically mentioned in the manual, is edentical to the Merlin 61 in the respects except that the propeller reduction gear ratio conforts to that quoted for the Merlin 66.

PUBLICATION No. T.S.D. 94    DECEMBER, 1946

issued by

ROLLS-ROYCE LIMITED, DERBY, ENGLAND


____________________

CONTENTS

CHAPTER 1. INTRODUCTION

CHAPTER 2. STORAGE AND TRANSPORTATION

CHAPTER 3. ISTALLATION AND REMOVAL

CHAPTER 4. STARTING AND OPERATION

CHAPTER 5. ENGINE ADJUSTMENT AND FIELD REPAIR

CHAPTER I    INTRODUCTION

CONTENTS

OPERATING LIMITS

ENGINE DATA

GENERAL DESCRIPTION

OPERATING LIMITS
Conditions
of Flight
Boost
(lbs. per sq. in)
R.P.M. Oil Temp.
°C (inlet)
Coolant Temp.
°C (outlet)
Time
Limit
TAKE-OFF
Merlin 61, 66, 67, 70, 71, 72, 73 & 77 12* 3,000 max 105° max 135° max 5 mins or
Merlin 85, 100, 104, 113, 114, 130 & 131 18* 3,000 max 15° min 60° min 1,000 ft
CLIMB OR SPECIAL EMERGENCY 12* 2,850 90° 125° min 1 hour
ALL-OUT
Merlin-61 15*
Merlin 66, 67, 70, 71, 72, 73, 77, 85, 113 & 114 18* 3,000 105° 135° 5 mins
Merlin 100, 104, 113, 114, 130 & 131 20*
MAX. CRUISING
Merlin 61, 66, 67, 70, 71, 72, 73, 76, 77 & 85 7* 2,650 (M.S.) 90° 105° -
Merlin 100, 104, 113, 114, 130 & 131 9* 2,850 (F.S.) 90° 115°*
DIVING
(Throttle lever at least one-third open)
Merlin-61 15*
Merlin 66, 67, 70, 71, 72, 73, 77, 85, 113 & 114 18* 3,150 - - 20 secs.
Merlin 100, 104, 113, 114, 130 & 131 20*

* Short period emergency on fighter aircraft and special application only.


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