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SEP 2018

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TRENDS SEPTEMBER 2018 24 CompositesWorld The Airlander 10 aircraft by Hybrid Air Vehicles (HAV, Shortstown, Bedford, UK) is a helium-filled airship that may represent a new way for tourists to see the world. Originally known as the HAV-304, the airship was developed as part of military program called the US Long Endurance Multi-Intelligence Vehicle (LEMV) project. Although the LEMV program was cancelled in 2013, HAV brought the concept back to the UK, and has rebuilt the craft with a focus on luxury travel. Unlike a rigid airship like the legendary Zeppelin, the Airlander 10 has no internal structure; pressurized helium inside the vast skin allows the skin to maintain its shape and support the payload modules attached to it (more on those below). It's a hybrid air vehicle because of a combination of both buoyant lift (due to the lighter-than-air helium) and aerody- namic lift (from air flow over the lobed, elliptical envelope shape). Four diesel engines driving ducted propellers contribute thrust, primar- ily for takeoff and landings, and the craft has a cruise speed of 105 knots. The 119m-long hull skin reportedly is made from a combination of materials, including a woven liquid crystal polymer fiber from Vectran (Kuraray, Tokyo, Japan), woven aramid fiber, polyvinyl fluoride film (PVF) known as Tedlar (DuPont, Wilmington, DE, US), and Mylar polyethylene terephthalate (PET) film from DuPont Teijin films (Luxembourg) combined with polyurethane film to create a gas barrier. Composites come into the picture in the payload modules, which are attached to the bottom of the hull, between the two hull lobes, reportedly using cables that attach to the rigid skin. HAV's technical data sheet says that the maximum payload capacity is 60,000 kg. HAV has worked with Forward Composites (Huntingdon, UK), a company based in Formula 1 and previously known as Lola Composites, on the compos- ite designs. The carbon fiber composite elements help minimize the weight of attached modules, which are interchangeable depending on mission. On July 16, 2018, at the recent Farnborough International Airshow, Hybrid Air Vehicles Ltd., together with Design Q (Redditch, UK) unveiled, with the slogan Rethink the Skies, a luxurious Airlander 10 passenger cabin, with more interior space than an Airbus A320. The passenger area will include private en suite bedrooms and horizon-to-horizon views in the aircraft's extensive Infinity Lounge, which features a glass floor. The craft can accommodate up to 19 passengers plus crew for three days. Airlander 10 can take off and land from virtually any flat surface, eliminating the need for traditional airport infrastructure, creating opportunities to explore remote locations. The luxury airship returns AEROSPACE Your Eastman machine is a stand-up member of the team, a reliable partner, a workhorse. With more than 130 years in business, Eastman has earned its reputation as our customer's hardest worker. Your Eastman can do a lot in a day - in fact, it never really punches out. Visit eastmancuts.com to learn more about Eastman's 130 years of trust. Hasn't taken a day off in years Source | Hybrid Air Vehicles Source | Hybrid Air Vehicles

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