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*停權中*
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引用:
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作者chaotommy
Designed primarily for long-range, transoceanic transport, the Pelican would fly as low as 20 feet above the sea, taking advantage of an aerodynamic phenomenon that reduces drag and fuel burn. Over land, it would fly at altitudes of 20,000 feet or higher.
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也許塘鵝的造型比較趨近飛機,所以能在20000呎或更高的高度巡航,不過它的空重將近2000噸,高空空氣稀薄,飛行性能想必打折扣,而且耗油;尤其這麼大的超級巨無霸在高空飛行會對其他飛機造成壓力也不一定 
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