Briefs: Aerospace
High Speed Idle Engine Control Mode

Innovators at NASA's Glenn Research Center have developed an engine control mode that improves an engine's responsiveness to throttle commands during emergency landing conditions. The high speed idle (HSI)...

Articles: Propulsion
Servo Couplings for High-Tech Systems

Couplings are a critical part of system performance in high-tech applications, yet they are often one of the last components to be specified. Selecting the proper coupling ensures the equipment will meet...

Articles: Manufacturing & Prototyping
Metallic Glass Shatters Gear Limitations

Gears play an essential role in precision robotics, and they can become a limiting factor when the robots must perform in space missions. In particular, the extreme temperatures of deep space pose numerous...

INSIDER: Motion Control
Dike Inspection Robot is Energy-Autonomous

Inspecting the condition of dikes and other sea defense structures is typically a task for robots, working in a team and in a highly autonomous way. But if they move around across the dikes, perform...

News: Motion Control
Rocket Motor Design Could Boost Small Satellite Missions

Researchers at Los Alamos National Laboratory have developed a rocket motor concept that could be used to power CubeSat low-cost satellites. The Los Alamos team recently tested a six-motor...

Briefs: Aerospace
Film Cooled Surface

Turbine film cooling flows typically are subject to jet detachment and reduced cooling effectiveness for high blowing rates. Current concepts to improve jet attachment involve impractical or overly complex hole designs due to...

Articles: Propulsion
NASA’s Pursuit of Power

Advances in Capacitor Materials

Electrochemical capacitors, or supercapacitors, have gained intense interest as an alternative to traditional energy storage devices. Applications for supercapacitors range from...

Briefs: Propulsion
Generation-2 Lean Direction Injection System

John H. Glenn Research Center, Cleveland, Ohio

An advanced Lean-Direct-Injection (LDI) turbine engine combustor was developed. Named LDI-II, which stands for second-generation LDI, this...

Briefs: Propulsion
Testing Aircraft Electric Propulsion Systems on NASA’s Modular Stand

As powered flight expands to include electric propulsion technologies, aeronautics designers need to understand the electrical, aerodynamic, and structural characteristics of...

Briefs: Physical Sciences
Iodine-Compatible Hall Effect Thruster

The Hall effect thruster (HET) was designed for long-duration operation with gaseous iodine as the propellant. Iodine is an alternative to the state-of-the-art propellant xenon. Compared to xenon, iodine...

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