PHOTO CAPTION: One of several N+2 ECO-150 variants of ESAero electric airliner concept

Electric Jetliner Closer Than First Imagined

Advanced design firm Empirical Systems Aerospace (ESAero) have modeled two variants of an 150-passenger electric airliner that doesn't require superconducting motor technology.

Published: 28-Feb-2013

When NASA talks about turboelectric distributed propulsion, it talks in terms of superconducting generators and motors in a hybrid wing-body concept aircraft it calls the N3-X. But there are other ways of approaching all-electric propulsion.

Empirical Systems Aerospace (ESAero), a small advanced-design house based in Pismo Beach, California, assumed superconducting technology when it produced a concept (below) for a 2030-35 timeframe turboelectric-powered 150-seat airliner, the ECO-150.

Designed to meet NASA's N+3-generation goals, which include a 60% reduction in energy consumption relative to the CFM56-powered 737-800, the ECO-150 features electrically driven fans embedded in the inboard wing sections, powered by mid-span turbogenerators supported by bracing struts attached to the tails. There are eight fan propulsors per side.


Chip Yates 'dead stick' lands his electric airplane after power failure

Rutan Long-EZ achieved a speed of 202.6 mph on second test flight on 19 July 2012.

Hydrogen fuel cell-powered Ion Tiger during 48-hour mission.

Liquid hydrogen is three-times as dense at gaseous hydrogen at 5000 psi, giving the Ion Tiger UAV greater endurance.

Yates makes emergency landing in his Experimental class Long Ez after battery warning lights came on.

Yates aims to best his 202 mph record set last year and is aiming for 230 mph, this time with 500 lbs battery pack that is more than twice as large as 200-lbs unit in earlier attempt.


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