HY4 gets Permit to Fly


February 12, 2021

Image titel:


HY4 gets Permit to Fly

Electric transportation

DLR, Josef Kallo, HY4, Andreas Scheuer, Schoefer, H2Fly, Winfried Hermann, FSG
Minister Hermann, Kallo and Schoefer (from left), © H2Fly

In August 2020, MTU entered into partnership with the German Aerospace Center – DLR, which has been conducting research into hydrogen technology for many years. The partners intend to develop and validate a fuel cell powertrain’s functionality for a Dornier 228 airplane with an electric MTU propeller engine providing over 500 kilowatts of power.

Rolf Henke, DLR executive board member responsible for aeronautics research and technology, said that “this joint research-industry project is the first of many steps toward zero-emission aviation.” MTU chief operating officer Lars Wagner claimed: “As things stand today, fuel cells utilizing sustainably produced hydrogen offer the greatest long-term potential for realizing emissions-free aviation.” Especially true for regional, short- or medium-distance aircraft. The Do-228’s maiden flight could take place in 2026.

Since the beginning of 2020, a 45-member group led by Johannes Hartmann – EXACT, Exploration of Electric Aircraft Concepts and Technologies – has been working on new efficient, eco-friendly commercial airplane technology at the DLR Systems Engineering Institute. Researchers from 20 different DLR organizations aim to bring a 70-passenger aircraft with a 2,000-kilometer range to technological maturity by 2040.

Pascale Ehrenfreund, who left the DLR in late September 2020, originally proposed devising this integrated concept for eco-friendly aviation. It is not clear yet if her successor, Anke Kaysser-Pyzalla (see p. 5), will announce an even more ambitious goal.

“With electrically powered aircraft, an engine’s practical arrangement, distribution and operation must be re-thought from scratch.”

Jan Werner Delfs, DLR Aerodynamics and Flow Technology Institute

HY4 – Tests in Slovenia and Germany

To achieve their goal, EXACT researchers are drawing on expertise in zero-emission aeronautics at the DLR Institute of Engineering Thermodynamics. The institute developed both the Antares DLR-H2 (see HZwei, January 2013) and a four-seat passenger aircraft dubbed HY4, (see H2-international, February 2016 and March 2017). The latter emerged from a collaboration between DLR spin-off H2Fly, Slovenian aircraft manufacturer Pipistrel and Cummins.

A sixth-generation fuel cell engine, powering the latest HY4 model, was designed by Josef Kallo, Ulm University professor, and his team. Despite the difficult circumstances, not least due to Covid-19 regulations, the H2Fly’s plane take-off on Nov. 6, 2020, in Mariboa, Slovenia, was quite a success. Kallo told H2-international: “The system really packs a punch.”

His team’s perseverance kept the project going despite several delays, including the first flight’s postponement from October to November. Following a three-month quarantine, team members completed a total of 32 take-offs in four days in bad, extremely foggy weather with visibility under 1,000 feet (300 meters), sometimes flying for two consecutive hours.

In late 2020, the HY4 received a test flight permit for Stuttgart. Walter Schoefer, Stuttgart airport management company, FSG’s board spokesperson, called it a “great milestone” for the biggest project FSG had ever supported. During the Nov. 11 HY4 presentation at Stuttgart airport, Winfried Hermann, Baden-Württemberg’s state transportation minister and FSG chairman, lauded Kallo and his team for their profound commitment and tenacity.

“HY4 is the future of aviation. […] It shows that flying carbon-free is possible, presently feasible and has what it takes to change transportation in the long term. […] Keep up the good work.”

German transportation minister Andreas Scheuer, via video call

… Read more in the latest H2-International e-Journal, Feb. 2021

Kategorien: Germany

Here are interesting and current articles on the topic of hydrogen – stocks and the stock market!

Economic prospects for companies in the hydrogen sector | Future, stocks & hydrogen companies on the stock exchange and more…

Which hydrogen companies will prevail in the competitive market in the long term? Get tips and cartwheels and learn more about risks or opportunities. Our stock market specialist and expert author Sven Jösting reports critically, independently and competently.

Jul 22 2024

Port of Rotterdam turning green and blue

Europe’s largest port wants to become sustainable “How quickly can we implement the energy...
Jul 22 2024

Rotterdam establishes itself as an H2 hub

Impressive size and professionalism A completely different league to Hannover Messe or Hy-Fcell in...
Jul 22 2024

Wystrach name change

The lengthy process to rename the company Wystrach is slowly coming to an end. As the tank...
Jul 22 2024

Sufficient water in Brandenburg

Water resources in the German state of Brandenburg have long been the subject of much discussion,...
Jul 22 2024

Partnership is the new leadership

Chancellor Olaf Scholz visits Hydrogen + Fuel Cells Europe The atmosphere was good. Not ecstatic,...
Jul 17 2024

Enertrag builds near Magdeburg

Despite challenging times, there are still reports of new H2 projects going ahead. For example, in...
Jul 17 2024

Wissing signs Berlin declaration

E-fuels – irrespective of their disputed suitability for the car sector – will be essential for...
Jul 15 2024

Only a third of NIP projects approved

Interview with Elena Hof, Paul Karzel and Jörg Starr from CEP The Clean Energy Partnership or CEP...
Jul 15 2024

Switzerland’s largest H2 plant

Energy group Axpo and the company Rhiienergie have launched the first H2 production plant for...
Jul 15 2024

Why hydrogen stocks can fall even further

Max Deml’s stock analysis In the past, hydrogen was usually isolated from fossil fuels such as...
Jun 13 2024

H2 Bank Selects Seven Projects”

The European Commission is allocating nearly 720 million euros to seven projects for renewable...
Jun 13 2024

World’s one-of-a-kind H2 test lab

Electrolyzers on the test bench In Hydrogen Lab Bremerhaven, manufacturers and operators of...
Jun 13 2024

First commercial green hydrogen production

Solar Global operates electrolyzer plant in Czech Republic An electrolyzer in the town of...
Jun 12 2024

Hydrogen 3.0

“Are we on the cusp of a hydrogen revolution or merely witnessing the build-up of another bubble?”...
Jun 12 2024

Mechatronic H2 pressure regulator

Up until now, Italian company Landi Renzo has been mainly known for its conversion sets for gas...
Jun 11 2024

Establishment of a metrological infrastructure

Flow measurement of high-pressure gas and liquid hydrogen In the field of flow measurement, the...
Jun 11 2024

FRHY Stack, first of its kind!

Technology platform for high-rate electrolyzer production The cooperative FRHY project, which...
Jun 10 2024

HySupply – German-Australian hydrogen bridge

Acatech and BDI show what’s feasible Defossilizing the energy system is an important goal of the...
Jun 05 2024

In the beginning was the refueling station

Creating planning security through the development of H2 infrastructure We have long discussed the...
Jun 04 2024

Digital potential

Low-cost green hydrogen through digitalization Plans to expand Germany’s hydrogen landscape are...

1 Comment

  1. gate io

    Thanks for the Informative article on chat bot, glad it was helpfulI must say you have high quality posts here. Thanks for sharing.Dear spurs nation thank you for letting me part of this wouldful family i been a spurs fan for 6years now im 22years old im spacial needs spurs are awesome i just wish i can meet the team players and get to go to a spurs game


Leave a Reply

Discover more from H2-international

Subscribe now to keep reading and get access to the full archive.

Continue reading