Spectators Balcony (Spotters Corner)If you're not a professional pilot but want to discuss issues about the job, this is the best place to loiter. You won't be moved on by 'security' and there'll be plenty of experts to answer any questions.
actually a jet engine is just a fan, a compressor, combustion chamber and a turbine. the air in the combustion chamber is supplied by the compressor, so there is no head.