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Designing Electronic Warfare to Regain Airborne Military Dominance

For decades, military aircraft have relied on electronic warfare (EW) solutions to protect assets and dominate airspace. The ability of the United States to detect and track aircraft, or avoid detection has played a major role in its ability to project power globally and maintain freedom of operation in the air.

Posted in: Articles, Aerospace, Electronic equipment, Security systems, Defense industry, Military aircraft
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Certifying Composite Designs for Aerospace and Defense

Wherever you find newer and particularly larger aircraft these days, you're seeing the use of composite materials. The latest commercial planes, as well as innovative defense prototypes, demonstrate the awareness of aerospace OEMs regarding the value of composites for stiffness and structural strength exceeding metals, plus weight savings and decreased fuel consumption. The military may have taken an early lead in pushing the use of composites, but now both sectors are fully committed to advancing the technology.

Posted in: Articles, Aerospace, Fuel economy, Composite materials, Certification, Commercial aircraft, Lightweighting, Military aircraft
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Angular Random Walk Estimation of a Time-Domain Switching Micromachined Gyroscope

The primary metrics that prohibit the use of microelectromechanical systems (MEMS) gyroscopes for navigation-grade inertial navigation units (IMUs) are angle random walk (ARW), bias instability, and scale factor instability. The need for MEMS gyroscopes is due to their decreased cost, size, weight, and power (CSWaP) constraints compared to current navigation-grade solutions. Note that to avoid confusion, while in a statistical context a random walk describes a particular type of random process, ARW is used herein to quantify the effects of white, or Gaussian, noise processes on the rate estimate of a gyroscope.

Posted in: Briefs, Aerospace, Sensors, Mathematical analysis, Microelectricmechanical device, Navigation and guidance systems, Noise, Reliability
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AuVSI™ XPONENTIAL: ALL THINGS UNMANNED

After a very successful trade show and conference in New Orleans last year, the Association for Unmanned Vehicle Systems International (AUVSI) is bringing this year's event, AUVSI XPONENTIAL 2017 to the Kay Bailey Hutchinson Convention Center in Dallas, TX. The event, which runs from May 8 – May 11, will feature more than 200 presentations and panel discussions focused on all aspects of the unmanned vehicle and robotics market. Over 650 exhibitors representing more than 20 different industries will be showcasing their latest technology to an estimated 7,000 attendees from all over the world.

Posted in: Articles, Aerospace, Artificial intelligence, Career and professional development, Collaboration and partnering, Robotics, Autonomous vehicles, Unmanned aerial vehicles
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New Products: April 2017 Aerospace & Defense Techonology

Rate Indicator/Totalizer

The Hoffer (Elizabeth City, NC) HIT-4U Rate Indicator/Totalizer is being offered with additional options providing the user with enhanced functionality and flexibility in a compact enclosure. The choice of a NEMA 4X enclosure joins the explosion-proof enclosure options and is now available flow meter mounted or remote mounted on a 2" or smaller pipe. The NEMA 4X enclosure offers options for local Modbus access ports via USB port or hardwired access through strain relief for data log retrieval and configuration of the unit.

Additional user friendly features of the unit include 12-point linearization, dual set point alarm output configurable for rate or total and a wide range of engineering unit display icons. The HIT-4U is offered in battery or loop-power with a lithium battery backup to ensure continuous, reliable performance.

Posted in: Products, Aerospace, Defense
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Submarine Radar Technology

Kelvin Hughes
Enfield, UK
+44 19 9280 5200
www.kelvinhughes.com

Kelvin Hughes recently announced that it has developed a way to bring all the benefits of its innovative SharpEye™ radar technology to submarines.

Posted in: Application Briefs, Defense, Radar, Marine vehicles and equipment
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Morphing Wings Make Jets More Efficient

University of Michigan engineers have developed improved wing designs capable of burning less fuel, as well as tools that help the aerospace industry build more efficient aircraft. In areas where new technologies are being applied – such as for wings made of composite materials or wings that morph during flight – improved design tools can provide insights when intuitive understanding is lacking.

Posted in: News, Aviation, Defense
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NASA Tests Engines That Reduce Drag and Fuel Burn

Boundary Layer Ingestion (BLI) is a promising idea NASA researchers are studying to reduce fuel burn in jet engines, thus reducing emissions and the cost of operating the aircraft. Thrust makes an airplane go forward, while drag tries to slow it down. Lift offsets the weight to keep an airplane in the sky. BLI deals specifically with the drag part of the equation by trying to reduce the total drag an airplane experiences in the sky.

Posted in: News, Aeronautics, Aerospace, Aviation, Defense
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Technique Enables 3D Printing of Aerospace-Grade Carbon Fiber Composites

Researchers from Lawrence Livermore National Laboratory have become the first to 3D print aerospace-grade carbon fiber composites, representing a significant advance in the development of micro-extrusion 3D printing techniques for carbon fiber.

Posted in: News, Defense, Manufacturing & Prototyping, Rapid Prototyping & Tooling
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NASA Test Flights Will Study Improved Efficiency of Supersonic Aircraft

NASA is set to begin a series of supersonic flights that will examine efforts to improve the efficiency of future supersonic aircraft. Future supersonic aircraft seeking to achieve a low boom will rely on a swept wing design in order to fly at supersonic speeds without producing a loud sonic boom. The swept wing design generally produces airflow disturbances that run along the span of the wing, resulting in turbulent flow, increased drag, and ultimately, higher fuel consumption.

Posted in: News, Aviation, Defense
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