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Avidrone wins DARPA heavy lift challenge at 3.84:1 ratio, missing 4:1 target and halving prizes
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Avidrone Inc. won the DARPA Lift Challenge with a conventional single-rotor helicopter achieving a 3.84:1 payload-to-weight ratio, falling short of the 4:1 threshold that would have unlocked full prize payouts.
The result demonstrates that current battery technology, not lift capacity, is the binding constraint for heavy-lift drones at extreme payload fractions. No team could complete a run at or above 4:1 because storing enough energy onboard to fly the required distance proved impossible, a limitation that will persist for any battery-electric heavy-lift platform.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
Avidrone's Katana helicopter achieved 3.84:1 payload-to-weight ratio, the best completed run among 61 teams over seven days.
No team reached the 4:1 target, so all podium prize money was halved, with Avidrone collecting $1.25 million instead of $2.5 million.
Energy storage, not lift capacity, was the binding constraint that prevented any team from completing a 4:1 run.
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