Page:Aerial Flight - Volume 1 - Aerodynamics - Frederick Lanchester - 1906.djvu/18

 

CHAPTER V.

The Aeroplane. The Normal Plane.

• § 128. Introductory.
• 129. Historical.
• 130. The Normal Plane. Law of Pressure.
• 131. Wind Pressure Determinations.
• 132. Still Air Determinations.
• 133. Quantitative Data of the Normal Plane.
• 134. Resistance a Function of Density.
• 135. Fluids other than Air.
• 136. Normal Plane Theory Summarised.
• 137. Deductions from Comparison of Theory and Experiment.
• 138. The Nature of the Pressure Reaction.
• 139. Theoretical Considerations relating to the Shape of the Plane.
• 140. Comparison with Effiux Phenomena.
• 141. The Quantitative Effect of a Projecting Lip.
• 142. Planes of Intermediate Proportion.
• 143. Perforated Plates.

 

CHAPTER VI.

The Inclined Aeroplane.

• § 144. Introductory. Present State of Knowledge.
• 145. The Sine² Law of Newton.
• 146. The Sine² Law not in Harmony with Experience.
• 147. The Square Plane.
• 148. The Square Plane: Centre of Pressure.
• 149. Plausibility of the Sine² Law.
• 150. The Sine Law Applicable in a Particular Case.
• 151. Planes in Apteroid Aspect (Experimental).
• 152. The Infinite Lamina in Pterygoid Aspect.
• 153. Planes in Pterygoid Aspect (Experimental).
• 154. Superposed Planes.
• 155. The Centre of Pressure as affected by Aspect.
• 156. Resolution of Forces.
• 157. The Coefficient of Skin Friction.
• 158. Edge Resistance in its Relation to Skin Friction.
• 159. Planes at Small Angles.
• 160. The Newtonian Theory Modified. The Hypothesis of Constant "Sweep."
• 161. Extension of Hypothesis.
• 162. The Ballasted Aeroplane.

 

CHAPTER VII.

The Economics of Flight.

• § 163. Energy Expended in Flight.
• 164. Minimum Energy. Two Propositions.
• 165. Examination of Hypothesis.
• 166. Velocity and Area both Variable.