Tag Archive: Siemens

Quieter electric planes are already in the air

Photo credit: Matti Blume licensed under CC BY-SA 4.0

by David M. Sykes, Vice Chair, The Quiet Coalition

Some readers think electrically-powered aircraft are a wild-eyed futuristic idea—not so! Quieter all-electric, battery-powered aircraft are already flying. Most of these are one- or two-passenger planes but they demonstrate the viability and economic attractiveness of battery-powered electric planes. This video shows you ten models you can buy and fly now:

Perhaps the most exciting one in this video is the 11-seat (9 passengers plus two pilots) Israeli-designed “Eviation Alice” which is intended for commercial, commuter flights. The first customer for the Eviation Alice, CapeAir, based in the eastern U.S., signed up in mid-2019 and has placed an order for delivery in 2022.

The big player in this transformation to electric aircraft is not an American company. It’s Germany’s Siemens. So far Boeing and it’s engine-maker GE are not doing anything in this space, just sitting on the sidelines and waiting for somebody else to go first. But with Boeing’s GE-powered 737MAX completely and indefinitely grounded worldwide, perhaps that partnership isn’t in a mood for innovation right now.

Electric propulsion of larger airliners—the kind of planes most of us ride like Airbus A320s, etc.—won’t arrive until battery technology takes the next big leap. But Tesla’s Elon Musk is a major player in that effort, so keep an eye on him in this sector, too. He’s not just a car and rocket guy, he’s also keenly interested in electric aircraft.

Airports are certainly not quiet now, and the FAA seems to be working hard to stall improvement. But no matter what the FAA and regional airport authorities do, the electric revolution in aircraft is showing that quieter, more fuel-efficient flight is closer than we might have thought!

David Sykes chairs several professional organizations in acoustical science: QCI Healthcare Acoustics Project, ANSI Committee S12-WG44, the Rothschild Foundation Task Force on Acoustics, and the FGI Acoustics Committee. He is lead author of “Sound & Vibration 2.0” (Springer, 2012), a contributor to the NAE’s “Technology for a Quieter America” and the GSA’s “Sound Matters,” and co-founded the Laboratory for Advanced Research in Acoustics at Rensselaer Polytech. A graduate of UC-Berkeley with advanced degrees from Cornell, he is a frequent organizer of professional conferences in the U.S., Europe, Asia and the Middle East.