Perfect scanned copy of the De Havilland Service Manual for Controllable Pitch & Constanst Speed airscrews ( Propellers ) for both Spring & Pressure operated Types. 103 pages scanned as High resolution TIF images. Very well illustrated with photographs & tables. Also included on the CD is an Adobe Acrobat version of the manual for easy browsing (Adobe Reader 7.0 supplied on the CD). Original manual published by the DeHavilland Aircraft Company Limited in August 1938. Comes in a nicely printed Jewel case. See my other auctions for more De Havilland & Vintage Aircraft & Engine manuals. Contents include :
INTRODUCTION
Take-off & Climb Performance
Altitude Performance
High Speed Aircraft
Multi-engined Aircraft
Brief General Description of the Airscrew
CHAPTER I - Component Parts of the Airscrew
CHAPTER II - Description of the Operating Mechanism
CHAPTER III - Operation of the Airscrew Under Constant Speed Control
CHAPTER IV - Installation of Airscrew
CHAPTER V - Running Instructions
CHAPTER VI - Troubles Affecting Pitch Change
CHAPTER VII - Complete Overhaul of the Airscrew
CHAPTER VIII - Inspection of Parts & Reconditioning
CHAPTER IX - Re-Assembly of Airscrew after Overhaul
CHAPTER X - Balancing the Airscrew
CHAPTER XI - Maintenance
CHAPTER XII - General
Toolkits
APPENDIX I - Schedule of Fits & Clearances
APPENDIX II - Installation Torque on Piston
APPENDIX III - Static Blade Torque for Final Assembly
ILLUSTRATIONS 5,000 Size Controllable Pitch Airscrew
Comparative Take-off & Climb Performance
Components of Blade assembly
Blade Plug & Components
Barrel Bolts & Barrel Support Blocks
Spider & Components
Counterweight Bracket & Components
Cylinder & Components
Piston & Components
Assembly Chart
Airscrew in Part Section, Perspective Sketch
Vector Diagram showing forces on Counterweights in Fine Pitch
Part Section Sketch, Barrel and Thrust Races
Spider with Packing Plates and Shim Packs
Sketch of Airscrew in Coarse & Fine Pitch
Sketch of Counterweight and Base Setting in Elevation
Sketch of Skeleton Assembly Showing Base & Counterweight Settings in Correct Perspective
Airscrew Blades – Shank Ends
Component Parts – less Blades – 5,000 size 20â Airscrew
Fitting of Thrustrace Bearing
Spider – Packing Plates, Barrel Support Blocks & Rear Half Barrel
Spring Clips on Thrust Bearings
Assembling Front Half Barrel
Inserting Cylinder, Piston Assembly
Assembly of Counterweights showing use of Allen Key
Checking Blade Angle
Three-way Airscrew on Balancing Ways
Blade Balancing Chart
Running Tool Kit
Workshop Tool Kit
Special Equipment
** Note that the sample pages below are much lower resolution than on the CD.
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