Patents by Inventor Mark Drela

Mark Drela has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240059403
    Abstract: Systems and methods for minimizing an aircraft turn radius are disclosed. For example, a method to minimize an aircraft turn radius may include receiving an activation signal from an activation switch. The activation switch may be configured allow a selected turn. The method may also include receiving a turn command in a direction of the selected turn. The method may also include transmitting a turn signal to an actuator operatively coupled to a nosewheel assembly. The actuator may rotate a shaft in the direction of the selected turn to move at least one nosewheel from a first angle to a second angle with reference to a longitudinal axis of the aircraft. The method may also include transmitting a thrust signal to at least one of a plurality of thrust-producing devices operatively coupled to a first wing and a second wing operatively coupled to the aircraft.
    Type: Application
    Filed: November 2, 2023
    Publication date: February 22, 2024
    Applicant: Electra Aero, Inc.
    Inventors: Oliver MASEFIELD, Mark DRELA
  • Publication number: 20240051655
    Abstract: A system and method for lift augmentation of an aircraft having a wing with a leading edge and a trailing edge extending along a wingspan, a plurality of thrust-producing devices connected to the bottom of said wing, at least one flap connected to an inboard portion of said wing proximate the trailing edge, and an aircraft roll control device connected to said wing, wherein the improvement comprises a plurality of slipstreams associated with a plurality of thrust producing devices and a flap adaptable to deflect from a chord of the inboard portion of the wing.
    Type: Application
    Filed: September 12, 2023
    Publication date: February 15, 2024
    Applicant: ELECTRA AERO, INC.
    Inventors: Christopher B. COURTIN, Mark DRELA, Robert John HANSMAN, JR., John S. LANGFORD, III, Oliver MASEFIELD
  • Patent number: 11851168
    Abstract: Systems and methods for minimizing an aircraft turn radius are disclosed. For example, a method to minimize an aircraft turn radius may include receiving an activation signal from an activation switch. The activation switch may be configured allow a selected turn. The method may also include receiving a turn command in a direction of the selected turn. The method may also include transmitting a turn signal to an actuator operatively coupled to a nosewheel assembly. The actuator may rotate a shaft in the direction of the selected turn to move at least one nosewheel from a first angle to a second angle with reference to a longitudinal axis of the aircraft. The method may also include transmitting a thrust signal to at least one of a plurality of thrust-producing devices operatively coupled to a first wing and a second wing operatively coupled to the aircraft.
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: December 26, 2023
    Assignee: Electra Aero, Inc.
    Inventors: Oliver Masefield, Mark Drela
  • Patent number: 11787526
    Abstract: A system and method for lift augmentation of an aircraft having a wing with a leading edge and a trailing edge extending along a wingspan, a plurality of thrust-producing devices connected to the bottom of said wing, at least one flap connected to an inboard portion of said wing proximate the trailing edge, and an aircraft roll control device connected to said wing, wherein the improvement comprises a plurality of slipstreams associated with a plurality of thrust producing devices and a flap adaptable to deflect from a chord of the inboard portion of the wing.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: October 17, 2023
    Assignee: Electra Aero, Inc.
    Inventors: Christopher B. Courtin, Mark Drela, Robert John Hansman, Jr., John S. Langford, III, Oliver Masefield
  • Publication number: 20230294824
    Abstract: Systems and methods for minimizing an aircraft turn radius are disclosed. For example, a method to minimize an aircraft turn radius may include receiving an activation signal from an activation switch. The activation switch may be configured allow a selected turn. The method may also include receiving a turn command in a direction of the selected turn. The method may also include transmitting a turn signal to an actuator operatively coupled to a nosewheel assembly. The actuator may rotate a shaft in the direction of the selected turn to move at least one nosewheel from a first angle to a second angle with reference to a longitudinal axis of the aircraft. The method may also include transmitting a thrust signal to at least one of a plurality of thrust-producing devices operatively coupled to a first wing and a second wing operatively coupled to the aircraft.
    Type: Application
    Filed: March 16, 2023
    Publication date: September 21, 2023
    Applicant: Electra Aero, Inc.
    Inventors: Oliver MASEFIELD, Mark DRELA
  • Publication number: 20230234718
    Abstract: In some embodiments, a lift augmentation system for a blown lift aircraft includes a blown lift tailplane operatively coupled to the blown lift aircraft. The blown lift tailplane may include a leading edge and a trailing edge, an upper surface and a lower surface, and a first side and a second side. The lift augmentation system may include one or more tailplane thrust-producing devices on the first side and the second side of the blown lift tailplane operatively coupled to the leading edge of the blown lift tailplane. The one or more tailplane thrust-producing devices on the first side and the second side of the blown lift tailplane may produce a plurality of slipstreams corresponding to each of the tailplane thrust-producing devices. The plurality of slipstreams corresponding to each of the tailplane thrust-producing devices may blow over the upper surface and the lower surface of the blown lift tailplane.
    Type: Application
    Filed: January 24, 2023
    Publication date: July 27, 2023
    Applicant: Electra Aero, Inc.
    Inventors: Oliver MASEFIELD, Mark DRELA, Christopher B. COURTIN
  • Publication number: 20230063801
    Abstract: A system and method for lift augmentation of an aircraft having a wing with a leading edge and a trailing edge extending along a wingspan, a plurality of thrust-producing devices connected to the bottom of said wing, at least one flap connected to an inboard portion of said wing proximate the trailing edge, and an aircraft roll control device connected to said wing, wherein the improvement comprises a plurality of slipstreams associated with a plurality of thrust producing devices and a flap adaptable to deflect from a chord of the inboard portion of the wing.
    Type: Application
    Filed: December 23, 2021
    Publication date: March 2, 2023
    Applicant: ELECTRA AERO, INC.
    Inventors: Christopher B. COURTIN, Mark DRELA, Robert John HANSMAN, JR., John S. LANGFORD, III, Oliver MASEFIELD
  • Patent number: 8622334
    Abstract: A system and method for reducing the noise penalty of a pusher propeller, allowing an aircraft to retain its advantages for UAV configurations, while allowing acoustic performance similar to that of a tractor propeller by reducing, or eliminating, propeller noise emissions. The system and method provide an airfoil-shaped flight surface with (i) a scoop configured to route boundary layer air and associated wake from said flight surface, and (ii) a suction device configured to provide a suction pressure, wherein the scoop routes boundary layer air from the flight surface to the suction device via an opening in the flight surface.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: January 7, 2014
    Assignee: Aurora Flight Sciences Corporation
    Inventors: Mark Drela, John Gundlach, Robert Parks, Adam Scott Ehrmantraut
  • Publication number: 20120292441
    Abstract: A system and method for reducing the noise penalty of a pusher propeller, allowing an aircraft to retain its advantages for UAV configurations, while allowing acoustic performance similar to that of a tractor propeller by reducing, or eliminating, propeller noise emissions. The system and method provide an airfoil-shaped flight surface with (i) a scoop configured to route boundary layer air and associated wake from said flight surface, and (ii) a suction device configured to provide a suction pressure, wherein the scoop routes boundary layer air from the flight surface to the suction device via an opening in the flight surface.
    Type: Application
    Filed: May 19, 2011
    Publication date: November 22, 2012
    Applicant: AURORA FLIGHT SCIENCES CORPORATION
    Inventors: Mark Drela, John Gundlach, Robert Parks, Adam Scott Ehrmantraut
  • Patent number: 7364115
    Abstract: An aircraft including a ducted fan and an engine for driving the ducted fan includes a plurality of vanes movably mounted to the aircraft at a substantially rectangular exhaust end of the aircraft. Each of the plurality of vanes is substantially rectangular or square. The plurality of vanes are configured to alter an exit area of the exhaust end. The aircraft includes a sensor circuit for detecting a RPM of the engine and for outputting a RPM signal. The aircraft includes a control circuit coupled to the sensor circuit and the plurality of vanes. The control circuit is configured to actuate the plurality of vanes to alter the exit area of the exhaust end to vary a pressure load on the ducted fan to control the RPM of the engine in response to the RPM signal.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: April 29, 2008
    Assignee: Aurora Flight Sciences Corporation
    Inventors: Robert Parks, Jean-Charles Ledé, Mark Drela
  • Publication number: 20060097107
    Abstract: An aircraft including a ducted fan and an engine for driving the ducted fan includes a plurality of vanes movably mounted to the aircraft at a substantially rectangular exhaust end of the aircraft. Each of the plurality of vanes is substantially rectangular or square. The plurality of vanes are configured to alter an exit area of the exhaust end. The aircraft includes a sensor circuit for detecting a RPM of the engine and for outputting a RPM signal. The aircraft includes a control circuit coupled to the sensor circuit and the plurality of vanes. The control circuit is configured to actuate the plurality of vanes to alter the exit area of the exhaust end to vary a pressure load on the ducted fan to control the RPM of the engine in response to the RPM signal.
    Type: Application
    Filed: September 19, 2005
    Publication date: May 11, 2006
    Inventors: Robert Parks, Jean-Charles Lede, Mark Drela
  • Patent number: 6576880
    Abstract: A flyer assembly is adapted for launching with, transit in, and deployment from an artillery shell having a central void region extending along a ballistic shell axis. The flyer assembly includes a jettisonable shroud and a flyer. The shroud extends along a shroud axis, and is positionable within the central void region with the shroud axis substantially parallel to the shell axis. The flyer is adapted to withstand a launch acceleration force along a flyer axis when in a first state, and to effect aerodynamic flight when in a second state. When in the first state, the flyer is positionable within the shroud with the flyer axis parallel to the shroud axis and the shell axis. The flyer includes a body member disposed about the flyer axis, and a foldable wing assembly mounted to the body member. The wing assembly is configurable in a folded state characterized by a plurality of nested wing segments when the flyer is in the first state.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: June 10, 2003
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Richard T. Martorana, Jamie Anderson, Simon Mark Spearing, Seth Kessler, Brent Appleby, Edward Bergmann, Sean George, Steven Jacobson, Donald Fyler, Mark Drela, Gregory Kirkos, William McFarland, Jr.
  • Publication number: 20030089820
    Abstract: A flyer assembly is adapted for launching with, transit in, and deployment from an artillery shell having a central void region extending along a ballistic shell axis. The flyer assembly includes a jettisonable shroud and a flyer. The shroud extends along a shroud axis, and is positionable within the central void region with the shroud axis substantially parallel to the shell axis. The flyer is adapted to withstand a launch acceleration force along a flyer axis when in a first state, and to effect aerodynamic flight when in a second state. When in the first state, the flyer is positionable within the shroud with the flyer axis parallel to the shroud axis and the shell axis. The flyer includes a body member disposed about the flyer axis, and a foldable wing assembly mounted to the body member. The wing assembly is configurable in a folded state characterized by a plurality of nested wing segments when the flyer is in the first state.
    Type: Application
    Filed: May 17, 2002
    Publication date: May 15, 2003
    Inventors: Richard T. Martorana, Jamie Anderson, Simon Mark Spearing, Seth Kessler, Brent Appleby, Edward Bergmann, Sean George, Steven Jacobson, Donald Fyler, Mark Drela, Gregory Kirkos, William McFarland
  • Patent number: 6392213
    Abstract: A flyer assembly is adapted for launching with, transit in, and deployment from an artillery shell having a central void region extending along a ballistic shell axis. The flyer assembly includes a jettisonable shroud and a flyer. The shroud extends along a shroud axis, and is positionable within the central void region with the shroud axis substantially parallel to the shell axis. The flyer is adapted to withstand a launch acceleration force along a flyer axis when in a first state, and to effect aerodynamic flight when in a second state. When in the first state, the flyer is positionable within the shroud with the flyer axis parallel to the shroud axis and the shell axis. The flyer includes a body member disposed about the flyer axis, and a foldable wing assembly mounted to the body member. The wing assembly is configurable in a folded state characterized by a plurality of nested wing segments when the flyer is in the first state.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: May 21, 2002
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Richard T. Martorana, Jamie Anderson, Simon Mark Spearing, Seth Kessler, Brent Appleby, Edward Bergmann, Sean George, Steven Jacobson, Donald Fyler, Mark Drela, Gregory Kirkos, William McFarland, Jr.
  • Patent number: 6260798
    Abstract: A compact, aerodynamic wing assembly constructed and arranged so as to withstand a force due to acceleration in at least one direction includes at least two wing segments, each of the wing segments having a span-wise axis, and a airfoil cross section normal to the span axis. The wing segments are preferably disposed mutually adjacent and end to end. For each pair of wing segments, the wing further includes a pivot assembly fixedly attached to the wing segments at an end of each of the wing segments along the span-wise axis. The pivot assembly forms an articulation axis for relative movement between each the pair of wing segments, such that the wing assembly converts, upon a predetermined stimulus, from a stowed configuration characterized by nested wing segments, to a deployed configuration characterized by a substantially uninterrupted aerodynamic surface.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: July 17, 2001
    Assignee: Massachusetts Institute of Technology
    Inventors: Thierry Casiez, Carlos Cesnik, Mark Drela, Staci N. Jenkins, Mark Spearing