ISSUE 011 Autumn 2021 Candela C-7 hydrofoil speedboat dossier l In conversation: Robert Hoevers l Battery recycling focus l Vehicle dynamics insight l ZeroAvia hydrogen-electric aircraft digest l Motor materials

ISSUE011 | AUTUMN2021 UK£15 USA$30 EUROPE€22 E-MOBILITY ENGINEERING THE COMMUNICATIONS HUB OF THE ELECTRIFIED POWERTRAIN Salvage value Let’sstay together Overcoming thechallenges of recyclingEVbatteries The importanceofsealing technology–nowand in the future Raising the standard Weget insideCandela’s C-7hydrofoilspeedboat EME_Issue 11 -Cover.indd 1 19/08/2021 15:09 Cleared for take-o Publisher Nick Ancell Editorial Director Ian Bamsey Technology Editor Nick Flaherty Production Editor Guy Richards Contributors Peter Donaldson Rory Jackson Technical Consultants Ryan Maughan Danson Joseph Design Joe Everley joe.everley@19-ninety.com Ad Sales Please direct all enquiries to Nick Ancell nick@highpowermedia.com Tel: +44 1934 713957 Subscriptions Please direct all enquiries to Frankie Robins frankie@highpowermedia.com Tel: +44 1934 713957 Publishing Director Simon Moss General Manager Chris Perry O ice Administrator Lisa Selley Volume Three | Issue THREE Autumn 2021 High Power Media Limited Whitfield House, Cheddar Road, Wedmore, Somerset, BS28 4EJ, England Tel: +44 1934 713957 www.highpowermedia.com ISSN 2631-4193 Printed in Great Britain ©High Power Media All rights reserved. Reproduction (in whole or in part) of any article or illustration without the written permission of the publisher is strictly prohibited. While care is taken to ensure the accuracy of information herein, the publisher can accept no liability for errors or omissions. Nor can responsibility be accepted for the content of any advertisement. SUBSCRIPTIONS Subscriptions are available from High Power Media at the address above or directly from our website www.highpowermedia.com . Overseas copies are sent via air mail. EDITORIAL OPPORTUNITIES Do you have a strong technical knowledge of one or more aspects of e-mobility systems? As we grow we are on the lookout for experts who can contribute to these pages. If that sounds an interesting challenge then don’t hesitate to explore the possibility of writing for us by emailing ian@highpowermedia.com ADVERTISING OPPORTUNITIES If you are looking to promote your company to engineers active in the electrification of vehicles, we have various advertising packages available to suit your needs. With a maximum of 25% of the publication allocated to advertising we offer a unique opportunity to become one of E-Mobility Engineering’s exclusive advertising partners, ensuring you are not lost in a crowded market. To discuss the opportunities and how we can work with you to promote your company please contact Nick Ancell. nick@highpowermedia.com +44 1934 713957 THE COMMUNICATIONS HUB OF THE ELECTRIFIED POWERTRAIN SUBSCRIBE TODAY visit www.highpowermedia.com ALSOFROMHPM T he world of aerospace e-mobility has seen key demonstrations that highlight the maturing of electric aircraft technology. For example, on page 50 we detail the technology behind the ZeroAvia fuel cell electric aircraft. Meanwhile, Joby Aerospace’s five-seater VTOL aircraft has made its maiden flight, flying for more than 150 miles and 77 minutes on a single charge, highlighting the increasing capability of NMC-graphite battery technology for short flights that had been seen as a technical challenge for this type of aircraft. Elsewhere, Volocopter and Opener have demonstrated passenger-carrying production aircraft, albeit for distances of only a few miles, although Opener’s single-seater Blackfly does not require a pilot’s licence. The Volocopter 2X two-seater has flown with a crew, and the company is preparing for series production after the acquisition of its composites supplier DG Flugzeugbau. All three eVTOL platforms are the result of more than 10 years of development, with much of the design and production of the key motor, battery technology and composites now being carried out in-house. In the light of that, on page 56 we look at the challenges surrounding the materials choices for electric aircraft motors. Thanks to this in-house production, all three companies are looking at qualification in 2022 for full commercial services by 2024. Other developers, such as Lilium and Astro Aerospace, are not far behind with production plans for longer range aircraft in a similar timeframe. These developments show that viable electric aircraft journeys will become a reality before long. Nick Flaherty l Technology Editor The covers of this magazine have had a Cellomed antimicrobial coating applied. This coating is speci ically designed to stop the spread of bacteria on printed matter. It employs a silver-based formulation to protect against the survival of microorganisms on the print surface. Its anti- bacterial, anti-viral and anti-fungal properties will not diminish throughout the life of the magazine. 4 Autumn 2021 | E-Mobility Engineering Intro | Autumn 2021 THE COMMUNICATIONS HUB OF THE RACING POWERTRAIN WORLD DAVIDSALTERS: FromFormulaOne toHPD www.highpowermedia. com AUGUST 2021 UK £15,USA$25,EUROPE e 22 SPRING/SUMMER 2020 UK £15,USA$25,EUROPE e 22 www.highpowermedia.com PORSCHE’S ELECTROMAGNETISM Inside a dominant 24-hour e-Drive THE ULTIMATE CONFIGURATION Developing a new-generation V16 EXTREME PROGRESSION Tractor Pulling’s strength showdown FUTURE RACE ENGINE FUELS Alternatives to allow the IC engine to survive Read all back issues online www.ust-media.com UST 39 :AUG/SEPT 2021 UK £15,USA$30,EUROPE e 22 Exact replicas The latest in simulation tools New headings Autopilots advance tomeet the needs ofmodernUAV designs Sea breeze Ease of customisation marks out the Maritime Robotics Mariner survey ASV