Aircraft With Low Noise, Such as During Take-Off and Landing
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United States of America Patent
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Issued Date -
Jul 31, 2008
app pub date -
Apr 11, 2006
filing date -
Apr 28, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to an aircraft with low noise, such as during take-off and landing. According to the invention, the aircraft comprises: two wings (2, 3) which have a reverse sweep (.phi.) and which do not support an engine; a rear vertical tail unit consisting of at least two fins (5, 6) and forming a channel (8) together with the rear part (7) of the fuselage (4), which is disposed on the back of same; and at least one turboshaft engine (9, 10) which is disposed on the back of the fuselage (4), such that the gas streams generated by the turboshaft engine (9, 10) enter the channel (8) and such that the downstream noise of the engine (9, 10) is masked laterally and downwardly by said channel. The root sections (11, 12) of the wings (2, 3) are disposed close to the air inlet (15, 16) of the turboshaft engine (9, 10) such that the upstream noise generated thereby is masked laterally and downwardly by said wings (2, 3).
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