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2 208 540

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IPC

(21) (22)

Application

99116223/28, 1999-07-23

(24)

Start date

1999-07-23

(22)

Actual filing date

1999-07-23

(45)

Published

2003-07-20

(72)

Inventor

Barinov V.A.Dmitriev V.M.Koshcheev A.B.Krupnik A.L.Lushkin D.O.Skomorokhov S.I.Pavlovets G.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Aviatsionnyj Nauchno-Tekhnicheskij Kompleks Im. A.N. Tupoleva

SWEPT WING OF SUBSONIC TRANSPORT AIRCRAFT Russian patent published in 2003 - IPC

Abstract RU 2208540 C2

FIELD: aeronautical engineering. SUBSTANCE: wing has profiles with parameters ϑ₂ and ϑ1,21

ϑ₂, where ϑ₁ is average angle of inclination of upper surface at section of chord from point at maximum ordinate

, where ϑ₂ is average angle of inclination of upper surface at section of chord from

; angle ϑ₂ changes from 10.0 to 10.9 deg. for sections of center wing part and from 10.9 to 11.1 deg. for sections of outer wing panel; product ϑ1,21

•ϑ₂ is equal to 49-51.5. Invention ensures reduction of shock-wave resistance in local supersonic zones on upper surface of wing. EFFECT: reduced shock-wave resistance. 9 dwg

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RU 2 208 540 C2

Authors

Barinov V.A.

Dmitriev V.M.

Koshcheev A.B.

Krupnik A.L.

Lushkin D.O.

Skomorokhov S.I.

Pavlovets G.A.

Dates

2003-07-20—Published

1999-07-23—Filed