Keyword: Fixed-wing aircraft

Briefs: Design
New design removes the need for mechanisms to perform active tilting of the wings or rotors, reducing system mass.
Briefs: Manned Systems
Gust load alleviation is an increasing concern for the design of fixed-wing aircraft with ultra-high aspect wings.
Briefs: RF & Microwave Electronics
Taking a cue from birds and insects, the wing design helps drones fly more efficiently and makes them more robust to atmospheric turbulence.
Briefs: Aerospace
Exhaust Plume Analyzer

Exhaust plumes emanating from smoke stacks at power plants or other industrial facilities can have adverse impacts on local aviation during periods of calm winds. Adverse impacts can be exacerbated if the temperature is low or the atmosphere is unstable. While low oxygen concentrations and elevated temperatures inside the...

Articles: Software

Hidden PFM-1 anti-personnel landmines are unexploded ordnance (UXO) devices that pose a difficult challenge to conventional...

Briefs: Electronics & Computers
Vibration Damping Circuit Card Assembly

NASA’s Marshall Space Flight Center has developed a particle impact damper (NASA damper) that can be used in circuit card assemblies to reduce vibrations encountered during space vehicle launch. The damper, filled with high-density metallic beads, is attached to printed circuit boards (PCBs) and printed...

Briefs: Aerospace

Flaps can significantly alter wing aerodynamics for high lift generation. Conventional flaps are mainly deployed for takeoff and landing, but are not suitable for in-cruise flight. It is widely speculated...

Application Briefs: Photonics/Optics

Using a custom-designed drone, a researcher from The Ohio State University mapped glaciers and wetlands in Peru’s Cordillera Blanca mountain range. Despite a discovered drop in glacier growth, the findings...

Briefs: Aerospace

Airframe noise is a significant part of the overall noise of typical transport aircraft during the approach and landing phases of flight. Airframe noise reduction...

Briefs: Aerospace
Rotorcraft Noise Model (RNM)

The Rotorcraft Noise Model (RNM) is a suite of computer models that predicts far-field noise for single or multiple flight vehicle operations. RNM calculates the effects of sound propagation over varying ground terrain for acoustic sources using geometrical theory of diffraction algorithms, and through a horizontally...

Articles: Aerospace
The Polariton Interferometer — A Novel Inertial Navigation System Frederick Moxley
Louisiana State University
Baton Rouge, LA
Briefs: Physical Sciences
Launch Method for Kites in Low-Wind or No-Wind Conditions

Airborne observations using lightweight camera systems are desirable for a variety of applications. This system was contemplated as a method to provide a simple remote sensing aerial platform. Kites have been successfully employed for aerial observations, but have historically required...

Articles: Aerospace

Aircraft of the future may not look significantly different from today’s aircraft, but a peek “under the hood” will reveal technologies that are vastly different. Commercial aviation giants...

Application Briefs: Software
PHX ModelCenter® software
Phoenix Integration
Wayne, PA

Phoenix Integration’s PHX ModelCenter® software has been used by NASA...

Briefs: Mechanical & Fluid Systems

The terms “inherently ducted propfan” (IDP) and “inherently ducted bi-prop” (IDBP) denote members of a proposed class of propfan engines that would be quieter and would weigh less than do other...

Briefs: Physical Sciences

The terminal descent sensor (TDS) is a radar altimeter/velocimeter that improves the accuracy of velocity sensing by more than an order of magnitude when compared to existing sensors. The TDS is designed...

Briefs: Mechanical & Fluid Systems

The tail boom of a single-rotor helicopter is subjected to a complex flow field that includes the wakes of the main and tail rotors, the freestream, and the wake from the forward...

Briefs: Software
Software Guides Aeroelastic-Systems Design

Accurately and efficiently predicting the unsteady dynamics of coupled, fluid-structure systems significantly reduces the cost of designing, testing, and maintaining fixed-wing aircraft, rotorcraft, and turbomachinery. It also improves safety. Organizations can realize substantial savings by...