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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.

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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.

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06 February, 2018

 

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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?

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Virgin Galactic rocket motor milestone

Virgin Galactic, the world’s first commercial spaceline which is owned by Sir Richard Branson’s Virgin Group and Abu Dhabi’s aabar Investments PJS, has selected a polyamide-based fuel grain to power its hybrid rocket motor for the remainder of the test flight program and start of commercial operations. This decision follows numerous ground test firings and is supported by data collected over an extensive development program.

In 2008, Scaled Composites, Virgin Galactic’s primary contractor, appointed rocket propulsion specialist, Sierra Nevada Corporation (SNC) to develop the basic hybrid rocket motor design for SpaceShipTwo. As a part of the program, Virgin Galactic has been developing two variants of this motor using two types of solid fuel grain: HTPB, a type of rubber (the fuel used in the SpaceShipOne rocket motor) and polyamide, a category of benign thermoplastic using Scaled engineering. Both fuel grains were designed to be interchangeable with the hybrid motor, and both have been tested extensively.

“Of the numerous challenges Virgin Galactic has faced and overcome in our unprecedented mission to create the world’s first spaceline, the greatest engineering challenge has been to develop the world’s largest operational hybrid rocket motor to power SpaceShipTwo and its occupants safely, regularly and efficiently to space,” said Virgin Galactic CEO George Whitesides. “It is a great credit to the work of our partners Scaled and SNC that we have completed this important milestone.”


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