xii CONTENTS 



PART III. 



ILLUSTRATIVE EXAMPLES. 

 CHAPTER XV. 



PAGE 



BODY RESISTANCE 147 



Fuselage Nacelle Engine egg Flying boat hull Pontoon 

 float Tail unit Struts Interference of struts Stream-line wires 

 Cable and piano wire Wheels Cockpit Windscreen Engine 

 cylinders Line of action of body resistance. 



CHAPTER XVI. 

 WING CHARACTERISTICS 152 



Example. 



CHAPTER XVII. 



PROPELLER PERFORMANCE CURVES . . . .153 



Diameter of a propeller, two-bladed Four-bladed Performance 

 curves in standard air Performance curves at altitudes. 



CHAPTER XVIII. 

 MACHINE PERFORMANCE CURVE 155 



First method Second method Third method Fourth method 

 Performance curve at altitudes. 



CHAPTER XIX. 

 AIR PERFORMANCE .164 



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 Rate of climb, first ap- 

 proximation Second approximation Third approximation 

 Time to altitude, general method Case of climb a linear function 

 of altitude Ceiling. PART III.: THROTTLED FLIGHT. 

 Slowest flying speed Consumption and revolutions when 

 throttled. 



CHAPTER XX. 

 GROUND PERFORMANCE 176 



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

 Landing on the ground. 



