Proven at 2,788 m: 410 kg Payload Case Studies
Four documented projects with altitude, payload and application stated. Judge for yourself whether your site is comparable.
Documented jobs, with the numbers attached
These are delivered projects, not demonstrations. Altitude, payload and application are stated so you can judge whether your own site is comparable.
Tibet grid construction: 410 kg at 2,788 m
Air density at 2,788 m is roughly 72% of sea level. The LY400 delivered 410 kg of grid hardware per sortie across a full construction cycle — tower components, insulators and conductor hardware moved to positions with no road access.
Why it matters: this is the highest documented payload at this altitude in our range, and it was measured on a paying project rather than a test flight.
Liangshan: sustained operations at 4,200 m
A high-altitude logistics route in Liangshan, operated at 4,200 m. At this elevation air density falls to roughly 63% of sea level, and every kilogram of payload becomes a hard engineering question.
Why it matters: sustained commercial operation at 4,200 m is beyond the design envelope of most heavy lift platforms sold today.
4,300 m: the highest recorded Lingyi operation
A high-altitude route operated at 4,300 m, the highest elevation recorded in our field history. Air density at this height is approximately 61% of sea level.
Why it matters: it defines the practical ceiling of the standard LY400 configuration, and the starting point for any custom high-altitude engineering request.
Yunnan plateau bridge construction
The LY200 supported bridge construction in Yunnan's plateau and mountain terrain, moving materials to positions that conventional lifting equipment could not reach economically.
Why it matters: it shows the 200 kg class handling real infrastructure work, not just light logistics — and it is the entry point for buyers who do not yet need a 450 kg airframe.
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