As far as cargo planes go, Amazon is said to be already dabbling at operating an air fleet.

在货运飞机方面，据说亚马逊已经开始尝试经营自己的机队了。

youdao

First, we used a superiority function to express the situation between the enemy and ourselves, and built up an air fleet fight superiority function matrix.

首先用优势函数来表明敌我态势，建立机群对抗优势函数矩阵。

youdao

Namely, using the centralized and distributed database design optimizes the configuration of simulation database of Air fleet fighting dis system and reduces network flux.

即利用集中和分布式的数据库结构对机群作战分布交互式仿真系统的数据库进行了优化设计，减少了网络数据流量。

youdao

What is more, the MCS insistence that an air fleet of 180 C-17s would be sufficient is at odds with official Air Force statements made just a year earlier, when a force of 222 planes was deemed the lowest force level advisable.

CENTERFORSECURITYPOLICY: The QDR and strategic mobility

Obvious questions like how big the economy will be in 2065 or what it would cost to maintain the current air fleet through that year are left unanswered, so policymakers and legislators have little basis for comparing F-35 support costs with available resources or alternative modernization strategies.

FORBES: Massive Cost Estimate For Fighter Program Is Misleading

Despite the passage of 60 years since its inception, the B-52 remains the most common heavy bomber in the Air Force fleet.

FORBES: Air Force Wants A Bomber That Balances Cost With Capability