H55’s electric B23 Energic aircraft proved almost inaudible in a Centennial Airport noise test on 11 July, flying routes alongside a piston-engine equivalent across six official monitoring stations.

Three of the six monitors did not register any aircraft noise, with the B23 flying below the ambient threshold of 60 decibels. The remaining three recorded the electric aircraft at just one-tenth the intensity of the piston aircraft.

“Electric aviation isn’t the future, it’s here,” says Michael Fronapfel, CEO of Centennial Airport. “The B23 Energic offers noise levels so low, they’re almost too quiet to track. This has real-world implications for airport communities. It’s a level of performance we’ve never seen before in general aviation.”

“Across multiple flights, the B23 Energic consistently came in 30 times quieter than similar aircraft during cruise,” adds Zach Gabehart, Centennial Airport’s noise and environmental specialist. “If this keeps up, I might be out of a job.”

Martin Larose, CEO of H55, says: “This test proves that electric aviation delivers not just environmental benefits, but tangible advantages for the communities around airports. We’re proud to offer a certified propulsion system that helps make aviation more affordable, more sustainable and more silent.”

The B23 Energic is continuing its Across America tour with August appearances at Francis S. Gabreski Airport and East Hampton Town Airport, two locations in one of the most noise-sensitive regions of the United States.