From: "P. Wezeman" <email@example.com> Organization: The University of Iowa Date: 13 Sep 96 03:03:32 References: 1 Followups: 1
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My thanks to everyone who answered my question about the containment required for rotating components on jet engines of airliners, both by e-mail and by posting here to sci.aeronautics.airliners. As I now understand it, all such engines are required to demonstrate that they can contain a broken fan blade in order to be certified. I also understand that the uncontained engine failure that led to the early 1990's forced landing of a DC10 in Souix City, Iowa, was due to the failure of the entire fan disc, as was the recent event where fragments from a JT8D engine penetrated the fuselage of an MD80 or similar aircraft. Please correct me if any of this is wrong. Also, could anyone hazard a guess as to how much weight it would add to a plane to enable it to contain a fan disc? Most airliners that I've been on have a sort of closet where oversize items of carry on baggage such as garment bags can be stowed. Is this closet built into the aircraft's structure, or could it be re-located adjacent to the engines' fan sections on a rear-engined airliner to provide some additional protection from a burst engine, at least on one side? Peter Wezeman, anti-social Darwinist "Carpe Cyprinidae"