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Lawsuit flies before electric planes take off

US start-up developing such aircraft accuses another of stealing trade secrets

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An undated photo showing an image included in a court filing comparing a Wisk prototype (left) with one later produced by Archer.

PHOTO: NYTIMES

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The age of electric planes may still be years away, but the fight for that market is already heating up.
Wisk Aero, a start-up developing an electric aircraft that takes off like a helicopter and flies like a plane, has sued another start-up, Archer Aviation, accusing it of stealing trade secrets and infringing on Wisk's patents.
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