By Bryan Corliss
March 9, 2023 © Leeham News – AeroTec learned “a lot about hydrogen” as it prepared Universal Hydrogen’s (UH2) Dash-8-300 flying testbed for its first flight last week.
“Hydrogen wants to escape,” said Dale Goulding, the chief technology officer for Seattle-based AeroTec. “It’s a very small molecule that wants to get out of whatever container you put it in.”
For that reason, Universal Hydrogen’s modular capsule makes refueling easier than it would be if the companies tried to replicate the fuel-pumping process used to refuel carbon-powered aircraft, he said.
“It’s been no problem at all,” Goulding said. “Just roll them in and out. It’s real easy.”
Goulding led a team of roughly 60 AeroTec employees working out of Grant County International Airport in Moses Lake, WA., which was where Universal Hydrogen’s first flight took place on March 2. The plane took two passes over the airfield, flying with a hydrogen fuel cell powering one propeller, while a second kerosene-powered motor was on idle, in case it was needed.
The short flight was intended to “get up, get down safely, then look at all the data,” he said; taking concepts out of the lab and putting them into the sky.
Sept. 27, 2022 © Leeham News: The battery-powered Eviation Alice has flown for the first time.
The nine-seat aircraft, powered by twin electric propeller motors assembled by Eviation’s sister company, magniX, rotated up and took off into a sky hazy from forest fires shortly after sunrise in the Pacific Time Zone, a little after 7 a.m.
After takeoff the plane banked to the right, circled for eight minutes around Grant County International Airport in Moses Lake, then landed safely. The Alice reached an altitude of 3,500 feet.
The dawn flight was an important milestone for Eviation, magniX, and for battery-powered aircraft in general. The Alice appears to be the largest electric passenger aircraft to fly so far, larger than the two-seater Pipistrel Velis, which had its first test flight with passengers in Iceland last month. Tecnam and Rolls Royce teamed up to fly a four-seater P2010 with a hybrid electric engine in February.
January 28, 2022, ©. Leeham News: Having discussed where investments would be the most efficient in alleviating our Greenhouse gas problems and identified the low-hanging fruit, we now look at new technology airplanes that can improve the situation.
We start with classical airliners, working our way from small types to the largest, then we discuss the impact of new transport forms like VTOLs for short-haul transportation.
As we will use the Leeham Aircraft Performance Model in some of the work, there will be extra articles (for this one, a Part 4P) which are Paywall, where we use the model to generate deeper data and understanding.
January 28, 2022, ©. Leeham News: This is a complementary article to the Part 4. Reality Checks article. It uses data from Leeham Company’s Aircraft Performance Model to develop the relationship between OEW (Operational Empty Weight) and MZFW (Maximum Zero Fuel Weight) compared with MTOW (Maximum Take-Off Weight) for 74 airliners in the model.
The article also discusses in more detail what’s the reasons behind large weight misses for new projects and how it’s handled.
By Bryan Corliss
July 1, 2021, © Leeham News: Seattle-area electric aircraft builder Eviation revealed Thursday that it has reached firm design configuration for its battery-powered, nine-seater Alice aircraft.
The announcement – which typically would signify that Eviation designers have locked-in design features, so that suppliers can use their drawings to begin work on their components – is more of a formality, however.
Eviation Executive Chairman Roei Ganzarski said suppliers already have delivered shipsets for the first production Alice, and mechanics at the company’s Arlington, WA, plant have begun final assembly.
“The plane is being built as we speak,” Ganzarski said. The company is on track for a first flight before year’s end, he added.
February 12, 2021, ©. Leeham News: After covering the basics of fuel cells last week in our hydrogen airliner series, we now look at what type of system to choose for aircraft propulsion and onboard systems power.
We analyze the propulsion side this week.
By Bryan Corliss
Jan. 18, 2021 © Leeham News — Western Washington aviation enthusiasts may need to send out an extra Valentine this year, addressed to Alice – the nine-passenger electric aircraft being developed by Eviation.
Sometime around Valentine’s Day, mechanics should begin assembling the first production Alice at the company’s new final assembly site in Arlington (WA), about 20 miles north of Boeing’s Everett facility.
“We are literally setting it up,” said Eviation Chairman Roei Ganzarski, last week from one of the two hangars that the company has taken over at Arlington Municipal Airport, as equipment boomed in the background. “We’re putting in fixtures and furniture and paint.”
Ganzarski said his plan is to have the first production aircraft ready to start flight tests for FAA certification this summer – assuming that both Eviation and magniX, the company providing the electric motors to power the craft – are able to stand up new facilities, complete their initial hiring and get the first shipsets assembled on time.
“What an exciting year 2021 is going to be,” Ganzarski said.
June 19, 2019, © Leeham News: AeroTEC and the electric motor airplane company magniX said today they have teams to retrofit the Cessna Grand Caravan with a 750 hp powerplant, converting the single-engine PT-6-powered turbofan from “gas guzzling, emissions-creating engine,” says magniX’s CEO Roei Ganzarski.
The announcement was made during the third day of the Paris Air Show.
The Caravan carries about 10 passengers, a combination of passengers and cargo or serves as a cargoliner. FedEx uses the airplane extensively.