公开(公告)号：US10279907B2

公开(公告)日：2019-05-07

申请号：US15113368

申请日：2015-01-27

Applicant: Israel Aerospace Industries Ltd.

Inventor： Michael Shepshelovich ,  Danny Abramov ,  Yonatan Klein

IPC: B64C39/02 ,  B64C3/14 ,  B64C13/16 ,  B64C29/00 ,  B64D43/02 ,  B64C15/12

Abstract: Methods are provided for operating an air vehicle having fixed wings. Such methods include the step of providing an operating map of angle of attack associated with the fixed wings with Reynolds number, including conditions of separated flow over the fixed wings and conditions of attached flow over the fixed wings. Such methods also include the step of using the operating map for guidance, causing the air vehicle to operate at least within a low Reynolds numbers range corresponding to the operating map, such as to avoid or minimize risk of causing the air vehicle to operate at conditions of separated flow over the fixed wings.

公开(公告)号：US20230211869A1

公开(公告)日：2023-07-06

申请号：US18000840

申请日：2021-06-08

Applicant: ISRAEL AEROSPACE INDUSTRIES LTD.

Inventor： Danny Abramov ,  Yonatan Klein

IPC: B64C3/56 ,  B64C9/18 ,  B64U30/12

CPC classification number: B64C3/56 ,  B64C9/18 ,  B64U30/12

Abstract: A wing system is provided for an air vehicle, the wing system having a stowed configuration, a pre-deployed configuration, and a deployed configuration. The wing system includes two wings, each wing having aerofoil profiles and being pivotably deployable about a respective pivot axis between the pre-deployed configuration and the deployed configuration. In the stowed configuration the two wings are in first general superposed spatial relationship with respect to one another and are capable of being accommodated within an envelope having an envelope cross-sectional profile and a corresponding envelope cross-sectional area. In the pre-deployed configuration, the two wings are in second general superposed spatial relationship with respect to one another and capable of deploying to the deployed configuration. In the deployed configuration the wings are each capable of generating aerodynamic lift in an airstream. Each aerofoil profile of each wing is a slotted aerofoil having a primary element, a secondary element and a chord, the secondary element being pivotable with respect to the primary element and spaced therefrom by a gap. Each aerofoil profile has a respective maximum thickness, and a respective maximum absolute thickness. In the stowed configuration, the respective second element of eachaerofoil of one wing is set at a different flap angle as compared with the respective second element of each aerofoil of the other wing.

公开(公告)号：US20160347451A1

公开(公告)日：2016-12-01

申请号：US15113368

申请日：2015-01-27

Applicant: ISRAEL AEROSPACE INDUSTRIES LTD.

Inventor： Michael Shepshelovich ,  Danny Abramov ,  Yonatan Klein

IPC: B64C39/02 ,  B64D43/02 ,  B64C15/12 ,  B64C3/14

CPC classification number: B64C39/024 ,  B64C3/14 ,  B64C13/16 ,  B64C15/12 ,  B64C29/00 ,  B64C2201/084 ,  B64C2201/104 ,  B64D43/02 ,  Y02T50/12

Abstract: Methods are provided for operating an air vehicle having fixed wings. Such methods include the step of providing an operating map of angle of attack associated with the fixed wings with Reynolds number, including conditions of separated flow over the fixed wings and conditions of attached flow over the fixed wings. Such methods also include the step of using the operating map for guidance, causing the air vehicle to operate at least within a low Reynolds numbers range corresponding to the operating map, such as to avoid or minimize risk of causing the air vehicle to operate at conditions of separated flow over the fixed wings.

Abstract translation: 提供了用于操作具有固定翼的机动车辆的方法。 这样的方法包括提供与固定翼相关的迎角与雷诺数相关的操作图的步骤，包括在固定翼上分离的流动的条件以及固定翼上附着流的条件。 这种方法还包括使用操作图来进行引导的步骤，使得空中飞行器至少在对应于操作图的低雷诺数范围内操作，以避免或最小化导致飞行器在条件下操作的风险 分离流过固定翼。