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" ... A vortex is generated at an aircraft's wingtip due to the high pressure, fast moving air that is beneath the wing, mixing and colliding with the slow and low pressure air that is above the wing having been created by the design curvature of the wings aerofoil (remember Mr. Bernouilli’s principle?) ... "
" ... The negative effects of shock waves also extend to the possible creation of wing and compressor stall. What I mean by this is that the formation of shock-waves change the relative airflow around the aerofoil’s of the wings/tail, etc. and unfortunately also the compressor blades in the inlet of an axial flow, jet-turbine engine. Shock-wave penetration or modification devices must be employed to change the airflow effect of a shock-wave. If you have ever looked at the complexity of the series of vanes and blocker doors that were designed into the air inlets on the Concorde, you will better understand the vital need to modify the pattern and flow of the sonic air before it enters the engine compressor. Additionally the amount of engine power output is also governed, to a certain extent, by the inlet temperature of the air entering the compressor, i.e. the colder the air is, the better the power output is. Frictional heating will have a drastic effect upon the total power output of the engine, if it is not controlled. ... "
" ... “The connotations of flight are intrinsic in the lines of the vehicle,” said David Woodhouse, Lincoln design director. “You have the stature and presence of the grille at the front, then the body and tail taper off – creating a distinct aerofoil analogy.” ... "