Ash hitting a jet engine causes sand particles to melt and molten glass to form on turbine blades, stopping it dead, a BBC test has revealed.
Bang Goes The Theory presenter and scientist Jem Stansfield showed how a jet engine needs fresh air flowing through it to create thrust.
Test shows how volcanic ash impacts a jet engine
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Seeded by Josh of Arc View Original Article: 
BBC News
Seeded on Tue Apr 20, 2010 8:21 AM
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