> as lemmas

1907 F. W. Lanchester Aerodynamics 11 The fluid in the vicinity of a streamline body is of necessity in a state of motion and contains energy.

1907 F. W. Lanchester Aerodynamics i. 20 In an actual fluid, bodies of other than streamline form experience resistance apart from that directly due to viscosity.

1909 C. C. Turner Aerial Navigation viii. 131 Bodies having ‘streamline’ form present the least resistance to the air. Pure streamline form is, roughly speaking, pear-shaped, the blunt end foremost.

1914 Automobile Topics 30 May (advt.) (back cover) That beautiful stream-line Car.

1918 W. L. Cowley Aeronautics iv. 93 The following table gives the resistance coefficients of aeroplane stream line wires, of fineness ratio 3:1.

1919 G. Whale Brit. Airships 160 The remaining two engines are carried in a small streamline car situated amidships.

1928 E. Cadbury in C. F. S. Gamble Story North Sea Air Station xxii. 408 I..seized a scarf, goggles and helmet, tore off my streamline coat, and semi-clothed..took a running jump into the pilot's seat.

1929 Jrnl. Royal Aeronaut. Soc. 33 360 In aeronautical nomenclature a ‘streamline body’ is one about which the flow of a real fluid..approximates very closely to a steady flow of the hypothetical inviscid fluid, except in a very thin layer called the ‘boundary layer’, surrounding the exposed surfaces.

1929 Jrnl. Royal Aeronaut. Soc. 33 361 The ideally streamline aeroplane cannot exist.

1936 J. C. Corlett Rigging & Airframes v. 108 On the final inspection of streamline wires they must be checked for ‘safety’.

1953 M. Rauscher Introd. Aeronaut. Dynamics vi. 259 The theory of the ideal fluid comes very close to representing the actual flow conditions about a streamline body in a fluid of low viscosity.