Boeing Engines.
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Join Date: Feb 2003
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Boeing Engines.
Is anyone able to tell me, please, why the two inner engines on 747's as they pass over me contrailing appear to be "Toe-In", i.e., viewed from below, the engines are not parallel with the fuselage, the intakes appear to be nearer the fuselage than the jet pipe.
This in turn makes the two inner contrails bend outwards until they are clear behind the aircraft, where they appear to line up with the two outer contrails.
Hope that lot makes sense. Thanks. N.Z.
This in turn makes the two inner contrails bend outwards until they are clear behind the aircraft, where they appear to line up with the two outer contrails.
Hope that lot makes sense. Thanks. N.Z.
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Join Date: Nov 1999
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Bl00dy 'ell! You've got good eyesight 
They do indeed 'toe in' BUT only 2 degress. It's a compromise to align the intake with the bow wave coming off the nose.
The outboards are also toed in the same amount.
They do indeed 'toe in' BUT only 2 degress. It's a compromise to align the intake with the bow wave coming off the nose.
The outboards are also toed in the same amount.
