Blue Origin, LLC

Blue Origin Manufacturing, LLC

Frederick W Boelitz

Mark Featherstone

Roger E Ramsey

David M Biggs

Christopher M Gil

Mark O Hilstad

Richard D Jones

Rocket tank liquid level determination, and associated systems and methods. A representative system includes a computer-readable medium having instructions that, when executed, receive an image corresponding to a view of the liquid in the rocket tank, identify an edge between the liquid and a wall of the tank, and, based on at least one of a size, shape, location, or orientation of the edge, estimate a level of the liquid in the tank. In addition to or in lieu of determining the liquid level, the system can determine a characteristic of a sloshing motion of the liquid in the tank, and, based at least on the characteristic of the sloshing motion, direct operation of a forcing element that imparts a force to the rocket to at least partially counteract a force placed on the rocket by the sloshing motion of the liquid in the tank.

Rocket tank liquid level determination, and associated systems and methods

Vehicles with control surfaces and associated systems and methods are disclosed. In a particular embodiment, a rocket can include a plurality of bidirectional control surfaces positioned toward an aft portion of the rocket. In this embodiment, the bidirectional control surfaces can be operable to control the orientation and/or flight path of the rocket during both ascent, in a nose-first orientation, and descent, in a tail-first orientation for, e.g., a tail-down landing. Launch vehicles with fixed and deployable deceleration surfaces and associated systems and methods are also disclosed.

Control surfaces for use with high speed vehicles, and associated systems and methods

Technology for predicting and correcting a trajectory is described. The technology can create a model to predict a position of the reusable launch vehicle at a time in the future; observe a wind condition during ascent of the reusable launch vehicle; store the observed wind condition in a wind map; predict during ascent a position and a terminal lateral velocity of the reusable launch vehicle at a terminal altitude; and correct a flight trajectory of the reusable launch vehicle based on the wind map.

Predicting and correcting trajectories

Technology is described for enabling a reusable launch vehicle to compensate for wind prior to engaging propulsion during approach to landing. The technology can cause the reusable launch vehicle to begin un-powered descent; determine a first rotation angle of the reusable launch vehicle about a specified vertical descent path, the first rotation angle corresponding to a first attitude of the reusable launch vehicle selected to stabilize the reusable launch vehicle on the vertical descent path based on a wind speed and angle; and prior to engaging a propulsion device, command a second rotation angle for the reusable launch vehicle, the second rotation angle corresponding to a second attitude that, when the propulsion device is engaged, will cause the reusable launch vehicle to remain at least approximately at the vertical descent path.

Compensating for wind prior to engaging airborne propulsion devices

Launch vehicles with fixed and deployable deceleration surfaces and associated systems and methods are disclosed. A system in accordance with a particular embodiment includes a launch vehicle that has a first end and a second end generally opposite the first end, and is elongated along a vehicle axis extending between the first and second ends. The vehicle carries an exposed outwardly facing surface having a first region positioned or positionable to have a first cross-sectional area generally normal to the vehicle axis toward the first end of the vehicle, and a second region positioned or positionable to have a second cross-sectional area generally normal to the vehicle axis toward the second end of the vehicle. The first cross-sectional area is less than the second cross-sectional area. The system can further include a propulsion system carried by the launch vehicle and having at least one nozzle positioned toward the first end of the vehicle to launch the launch vehicle. In a further particular embodiment, the exposed surface can include a deployable flare surface that is positioned toward the forward section of the vehicle and is stowed during an ascent phase of the vehicle. During descent, the deployable flare surface can pivot outwardly to slow the vehicle down for a tail-down landing. Systems is accordance with other embodiments include launch vehicles with fuel tanks shaped to control the motion of the center of gravity of fuel in the tanks as the fuel level in the tank changes.

Growing community of inventors

Sammamish, WA, United States of America

Frederick W Boelitz