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Re:Lilium – Electric vertical take-⁠off and landing jet by clueless123 on Friday April 21, 2017 @04:00PM (#14168937)
FAA Minimum reserve requirement is 30 minutes. 50 ~ 150 Km is plenty to avoid most cities heavy traffic.
Re:Lilium – Electric vertical take-⁠off and landing jet by nradov on Friday April 21, 2017 @04:41PM (#14169268)
FAA allows helicopters to operate with only 20 minutes fuel reserve under VFR conditions.