Patent
Variable camber multi-slotted flaps
TLDR
In this article, a double slotted leading edge flap with two members and adapted to be used together with a multislotted trailing edge flap is specified. But the wing torsion, fuel volume, number of slots, and effect of varying airfoil thickness on flap geometric and aerodynamic parameters are not considered.Abstract:
An airfoil is specified with a double slotted leading edge flap having two members and adapted to be used together with a multislotted trailing edge flap. The leading edge flap uses two slots for landing and one or no slots for take off. The rear leading edge member defines a slot substantially downstream of the cruise leading edge. Ahead of the trailing edge flap slot, there is provided a special slot across the wing''s surface in special cooperation with a spoiler. The airfoil surface between the downstream slot of the leading edge flap and the special slot near the trailing edge flap is short and with negligible camber. Special consideration is given to wing torsion, fuel volume, number of slots, and effect of varying airfoil thickness on flap geometric and aerodynamic parameters.read more
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Patent
Systems and methods for controlling aircraft flaps and spoilers
TL;DR: In this paper, a system for controlling aircraft flaps and spoilers is described, in which a first flap position and a second flap position can be controlled by operation of a first actuator, independent of the motion of the flap.
Patent
Multi-function trailing edge devices and associated methods
Seiya Sakurai,Stephen J. Fox,Kevin W. Beyer,Douglas S. Lacy,Paul L. Johnson,Stephen L. Wells,Jack S. Noble,Paul T. Meredith,Neal V. Huynh,Russell R. Christianson,Paul M. Vijgen,Michael F. Fitzpatrick,Clayton A. Prow,Edward W. Gronenthal +13 more
TL;DR: In this article, a guide structure can be coupled between the first and second portions of an external fluid flow body, and an actuator can be operatively coupled between them to move the second portion relative to the first portion.
Patent
Aircraft control surface drive system and associated methods
TL;DR: A control surface drive system having a plurality of actuator assemblies coupled to first and second supply lines and to a return line is described in this paper, where a computer controller operatively interconnects the plurality of assemblies and the flow control assembly.
Patent
Method and apparatus for controlling airflow with a leading edge device having a flexible flow surface
Kevin W. Beyer,Stephen J. Fox,Douglas S. Lacy,Paul T. Meredith,Clayton A. Prow,Seiya Sakurai,Stephen L. Wells +6 more
TL;DR: In this paper, a leading edge device with a flexible flow surface is coupled with a guide structure to move between a first position and a second position offset from the first position by an angle of from about 45° to about 90° or more.
Patent
Slot forming segments and slot changing spoilers
TL;DR: In this paper, a slot forming segment is inserted between two portions of a wing, which are adjacent along a longitudinal axis of wing, into a cove of a carved trailing edge of a leading portion of the adjacent portions and pivotal relatively to both adjacent portions of the wing between which it is inserted.
References
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Patent
Wing with slotted flap mounted at the leading edge and/or at the trailing edge
TL;DR: In this article, a slotted flap adapted to be mounted on at least one edge of a wing and adapted to pivoted outwardly therefrom, comprising a first portion positioned uppermost in the retracted condition, and a second lower portion mounted on said first portion for pivotal movement about the outer edge of the first portion, both portions constituting independent slotted flaps in the extended condition thereof.