Supplier Spotlight

Video Exclusives

Airbus updates on Skyways urban delivery drone

Airbus Helicopters reports that it plans to start field trials later this year in Singapore of the UAV, which is able to deliver parcels that weigh up to 4kg.

Click here to watch video

16 February, 2018



Ehang autonomous aerial vehicle manned flight tests

Chinese firm Ehang announced that it has achieved a series of manned flight tests carrying one and two passengers, including its CEO and government officials.

Click here to watch video

06 February, 2018

 

To watch more videos, click here

We'd like to know, what do you think are the greatest engineering challenges to be solved for electric and hybrid aircraft, before they can be used more widely in aviation?

News

Lightweight carbon wing subjected to 4g

A series of tests, which statically demonstrated the structural integrity and durability of a lightweight aircraft’s carbon fiber wing under loads of up to 4g, has been conducted by Belite Aircraft. Completed at the firm’s Kansas facilities, the tests subjected a carbon fiber wing to progressively increasing g loads to verify that the carbon fiber wing exceeded the stated specifications of +3.8/-1.5g in static testing. In fact, the wing, which weighs less than 14 lb, exceeded the stated limits, remaining intact under a 4g load of 1,134 lb.

James Wiebe, CEO of Belite, directed the test program and noted that, “We wanted to demonstrate the strength carbon fiber can provide at light weights. It does not behave like any metal. When highly stressed, metal will begin to deform while still providing strength. Carbon fiber, on the other hand, will take loads nearly to 100% of strength without permanent deformation.

“We began the testing by conducting a negative g test, placing a 2g load on the wing of our Belite 254. We proceeded to conduct a positive g test by attaching the wings to another fuselage, inverting it. Under a load of 3g we noted delamination of specific ribs under compressive load, from the bottom of the rib through to the top of the rib. The Carbon Fiber spars were undamaged. Consequently we revised the rib design. After changes, the wing still weighed less than 14 lb.

“We then loaded more than 1,100 lb onto the inverted wing panel, which was then supported by sawhorses. In fact, one of the sawhorse support points failed…but the wing remained intact.
 


RECEIVE THE
LATEST NEWS


Your email address:



Read Latest Issue

Read Latest Issue

Web Exclusives

In just six months, the US Air Force publicly announced and flew its Light Attack Experiment, pitching four platforms against a series of demanding mission objectives
Click here to read more

A new flight test project led by Airbus spearheads an EU effort to see if laminar-flow wings can be produced on an industrial scale
Click here to read more

BAE Systems’ structural test team at Brough has now completed a third cycle of F-35A fatigue testing
Click here to read more

Two leading test pilot schools continue to invest in aircraft, equipment and new approaches to better meet the changing needs of industry 
Click here to read more

What role will wind tunnels play in the testing of future aircraft? NASA’s latest supersonic testing program provides some clues
Click here to read more


Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the aerospace testing industry. Want to see your company included? Contact tom.eames@ukimediaevents.com for more details.

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the aerospace testing community? Good or bad, we'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to anthony.james@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email ben.sampson@ukimediaevents.com