Featured Research

from universities, journals, and other organizations

Engineering Modifications Enhance Aircraft Safety

Date:
February 24, 2007
Source:
University of Leicester
Summary:
Modifications of an aircraft control system developed by University of Leicester engineers, have been tested by flight test engineers from the German Aerospace Center (DLR) and German Air Force test pilots.

Modifications of an aircraft control system developed by University of Leicester engineers, have been tested by flight test engineers from the German Aerospace Center (DLR) and German Air Force test pilots.

Related Articles


The Leicester modifications have effectively compensated for an inherent design limitation that has led to several disastrous crashes - most notably the JAS-29 during an air show in Stockholm and the YF-22.

Man-machine interactions in aircraft can lead to so-called pilot involved/in-the-loop oscillations (PIOs) which can compromise aircraft performance and safety. PIOs have therefore become a major concern for the European and US aerospace industry.

The University of Leicester Department of Engineering has been a member of the European GARTEUR (Group for Aeronautical Research and Technology in Europe) Action Group AG15 for the past three years. The group's aim is to develop techniques which allow the prediction and prevention of PIOs.

Over the past several years Leicester has developed control design techniques ("anti-windup compensators") which can be added to existing aircraft control systems to lessen susceptibility to PIOs. Extensive mathematical development and computer simulation has matured these techniques but until summer 2006 no in-flight testing was performed.

Recently, a team of engineers from Leicester, the German Aerospace Center (DLR) and test pilots from the German Armed Forces Flight Test Centre (WTD61) performed in-flight tests of these "PIO prevention" compensators on the DLR ATTAS (Advanced Technologies Testing Aircraft System) experimental aircraft.

During this flight test campaign, termed SAIFE (Saturation Alleviation In-Flight Experiment), the ATTAS aircraft was deployed in scenarios which were expected to lead to PIO type events and data and pilot comments were collected both with and without the Leicester compensators engaged.

University of Leicester engineer Dr Matthew Turner commented: "Pilot comments showed that with the Leicester compensators engaged, the aircraft was significantly less PIO prone than without. Moreover, the aircraft was deemed to have more predictable handling qualities overall, which was an added bonus.

"In fact in every single manoeuvre the aircraft performed as well as or better than normal, when the Leicester compensators were engaged."

The results were well-received within the GARTEUR action group and further flight tests are planned - again jointly with DLR and WTD61 - in April 2007.


Story Source:

The above story is based on materials provided by University of Leicester. Note: Materials may be edited for content and length.


Cite This Page:

University of Leicester. "Engineering Modifications Enhance Aircraft Safety." ScienceDaily. ScienceDaily, 24 February 2007. <www.sciencedaily.com/releases/2007/02/070223142925.htm>.
University of Leicester. (2007, February 24). Engineering Modifications Enhance Aircraft Safety. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2007/02/070223142925.htm
University of Leicester. "Engineering Modifications Enhance Aircraft Safety." ScienceDaily. www.sciencedaily.com/releases/2007/02/070223142925.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Building Google Into Cars

Building Google Into Cars

Reuters - Business Video Online (Dec. 19, 2014) Google's next Android version could become the standard that'll power your vehicle's entertainment and navigation features, Reuters has learned. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
AP Review: Nikon D750 and GoPro Hero 4

AP Review: Nikon D750 and GoPro Hero 4

AP (Dec. 19, 2014) What to buy an experienced photographer or video shooter? There is some strong gear on the market from Nikon and GoPro. The AP's Ron Harris takes a closer look. (Dec. 19) Video provided by AP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins