Subscribe to our free daily newsletters
. 24/7 Space News .




Subscribe to our free daily newsletters



AEROSPACE
Hear This: 30 Percent Less Noise
by Jelisa Beaty for AFRC News
Edwards AFB CA (SPX) Oct 20, 2017


NASA aircraft technicians Leo and Juan Salazar work on installation of test instrumentation in preparation for installation of the experimental Adaptive Compliant Trailing Edge flap on NASA's modified G-III Aerodynamic Research aircraft. Credits: NASA / Ken Ulbrich

The Adaptive Compliant Trailing Edge flight test project, or ACTE, is proving that a new flap design can reduce aircraft noise by as much as 30 percent on takeoff and landing.

The second phase of the project, ACTE II, which is expected to continue this fall and conclude at the end of the year, will build on the research and data collected on the flap locked in different positions in flight during the first phase. The second phase, taking place at Armstrong, also will validate the technology at higher speeds and research how the flaps impact aerodynamic forces that could improve fuel efficiency.

The goal of the ACTE flight test project is to investigate the capabilities of shape-changing surfaces and determine if advanced flexible trailing-edge wing flaps can improve aircraft aerodynamic efficiency, enhance fuel economy and reduce airport noise generated during takeoffs and landings.

"ACTE has tremendous potential to increase airframe efficiencies," said Kevin Weinert, ACTE project manager. "We have tested the flap at six positions to show we can take advantage of lightweight, efficient structures."

In 2014, engineers replaced the traditional 19-foot aluminum flaps for the ACTE wings on NASA's Gulfstream-III Subsonic Research Aircraft, or SCRAT. The Air Force Research Laboratory funded the flexible flaps that change shape, bend and are made of composite materials designed by FlexSys Inc.

Traditional flaps, when lowered, create gaps between the forward edge, the sides of the flaps and the wing surface. A flexed wing configuration allows a level of control over how and where the wing responds to wind gusts. This design may significantly reduce a major source of airframe noise - making takeoff and landing quieter.

The first flight series for the ACTE took place in 2014 and 2015 at Armstrong, where relevant data were collected on the different flap settings and their ability to withstand the flight environment. These flaps have the potential to be retrofitted to existing airplane wings as well as incorporated into new airliners. The controls on the experimental surfaces were locked on a specific setting and were restricted to a speed of 0.75 Mach, which is approximately 570 miles per hour.

Initially, flights with ACTE flaps were in a flexed configuration and limited to a maximum speed of 250 knots and 20,000 feet. ACTE II showed the technology was safely demonstrated in flight at speeds similar to commercial airliners at Mach 0.85.

NASA is currently conducting data analyses to gain a better understanding of how these new wing flaps may affect aircraft fuel efficiency. The ACTE II flights will also analyze fuel flow through the engine to achieve accurate drag estimates at varied speeds, altitudes and weights, according to Weinert.

The ACTE project began under the former Environmentally Responsible Aviation project and then, due to promising benefits, was transitioned to the Flight Demonstrations and Capabilities project under the Integrated Systems Research Program in NASA's Aeronautics Research Mission Directorate.

AEROSPACE
Peraton to help sustain DHS, TSA screening equipment
Washington (UPI) Oct 11, 2017
Peraton is to provide integrated logistics and support services to help sustain security screening equipment at U.S. airports and TSA component facilities. The work for the Department of Homeland Security and Transportation Security Administration comes under a five-year $578 million government contract. "Our work will help TSA protect our country," Peraton Chief Executive Office ... read more

Related Links
Aeronautics
Aerospace News at SpaceMart.com


Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once


credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly


paypal only

Comment using your Disqus, Facebook, Google or Twitter login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

AEROSPACE
Roscosmos: International Space Exploration to Continue Despite Geopolitical Situation

US spacewalkers install 'new eyes' at space station

NASA May Extend BEAM's Time on the International Space Station

USNO Astronomers Measure New Distances To Nearby Stars

AEROSPACE
ESA role in Europe's first all-electric telecom satellite

Lockheed Martin Launches Second Cycle of 'Girls' Rocketry Challenge' in Japan

Rocket motor for Ariane 6 and Vega-C is cast for testing

RS-25 Engines Ready for Maiden Flight of NASA's Space Launch System

AEROSPACE
Russian Space Research Institute Announces July 2020 Date for Mission to Mars

ASU examines Mars' moon Phobos in a different light

Mars Study Yields Clues to Possible Cradle of Life

Another Chance to Put Your Name on Mars

AEROSPACE
China launches three satellites

Mars probe to carry 13 types of payload on 2020 mission

UN official commends China's role in space cooperation

China's cargo spacecraft separates from Tiangong-2 space lab

AEROSPACE
Eutelsat's Airbus-built full electric EUTELSAT 172B satellite reaches geostationary orbit

Turkey, Russia to Enhance Cooperation in the Field of Space Technologies

SpaceX launches 10 satellites for Iridium mobile network

Lockheed Martin Completes First Flexible Solar Array for LM 2100 Satellite

AEROSPACE
Understanding rare earth emulsions

Dutch open 'world's first 3D-printed bridge'

Chemical treatment improves quantum dot lasers

Missing link between new topological phases of matter discovered

AEROSPACE
Are Self-Replicating Starships Practical

New telescope attachment allows ground-based observations of new worlds

Biomarker Found In Space Complicates Search For Life On Exoplanets

The Super-Earth that Came Home for Dinner

AEROSPACE
Ring around a dwarf planet detected

Helicopter test for Jupiter icy moons radar

Solving the Mystery of Pluto's Giant Blades of Ice

Global Aerospace Corporation to present Pluto lander concept to NASA




Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News






The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement