Matches in DBpedia 2015-04 for { <http://dbpedia.org/resource/Helicopter_noise_reduction> ?p ?o }
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- Helicopter_noise_reduction abstract "Helicopter noise reduction is a topic of research into designing helicopters which can be operated more quietly, reducing the public-relations problems with night-flying or expanding an airport. In addition, it is useful for military applications in which stealth is required: long-range propagation of helicopter noise can alert an enemy to an incoming helicopter in time to re-orient defenses.".
- Helicopter_noise_reduction wikiPageID "1518561".
- Helicopter_noise_reduction wikiPageRevisionID "597429518".
- Helicopter_noise_reduction hasPhotoCollection Helicopter_noise_reduction.
- Helicopter_noise_reduction subject Category:Noise_reduction.
- Helicopter_noise_reduction comment "Helicopter noise reduction is a topic of research into designing helicopters which can be operated more quietly, reducing the public-relations problems with night-flying or expanding an airport. In addition, it is useful for military applications in which stealth is required: long-range propagation of helicopter noise can alert an enemy to an incoming helicopter in time to re-orient defenses.".
- Helicopter_noise_reduction label "Helicopter noise reduction".
- Helicopter_noise_reduction sameAs m.057g_z.
- Helicopter_noise_reduction sameAs Q5705218.
- Helicopter_noise_reduction sameAs Q5705218.
- Helicopter_noise_reduction wasDerivedFrom Helicopter_noise_reduction?oldid=597429518.
- Helicopter_noise_reduction isPrimaryTopicOf Helicopter_noise_reduction.