CONTENTS xi 



CHAPTER IX. 



PAGE 



WING CHARACTERISTICS 85 



Definitions Tabular method Cautions in applying the correc- 

 tions Presentation of model results Standard tests. 



CHAPTER X. 

 PROPELLER PERFORMANCE CURVES .... 98 



General Definitions Propeller diameter Propeller perform- 

 ance curves in standard air Propeller performance curves at 

 Altitudes Racing propellers Multi-propeller machines Tandem 

 propellers. 



CHAPTER XI. 

 MACHINE PERFORMANCE CURVE 107 



General Machine performance curve in standard air, first 

 method Second method Third method Variant of the third 

 method Fourth method Machine performance curve at an 

 altitude. 



CHAPTER XII. 

 AIR PERFORMANCE 116 



PART I. : GLIDING FLIGHT. Landing speed on glide, first method 

 Second method Gliding angle Gliding in a wind. PART II. : 

 FULL POWER FLIGHT. Top speed Top speed at an altitude- 

 Racing machines Rate of climb, first approximation Second 

 approximation Third approximation Times to altitudes Ceiling. 

 PART III. : THROTTLED FLIGHT. Slowest flying speed Thrott- 

 ling curves Consumption and revolutions when throttled Best 

 cruising speed at given altitude, in a calm Against a head wind 

 Best cruising altitude Cruising range, in a calm Against a 

 head wind. 



CHAPTER XIII. 

 GROUND PERFORMANCE 138 



Getting off a deck Getting off the ground Landing on a deck 

 Landing on the ground. 



CHAPTER XIV. 

 WATER PERFORMANCE 141 



Condition for getting off, special model test being available Special 

 model test not available. 



