FIELD: aircraft engineering.
SUBSTANCE: proposed method consists in creation of aerodynamic or hydrodynamic lift by rotation of second-order-surfaces. For example, straight, round, hollow cone is spinned relative to axis extending through circle centre of the base and vertex. Note here that created lift is directed along that axis from vertex to base.
EFFECT: lower noise of running engine.
3 dwg
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Authors
Dates
2015-01-10—Published
2013-09-03—Filed