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

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§ 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.

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§ 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.

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