垂直起落

三峡升船机塔柱联系梁三维有限元内力计算翼内升力风扇式垂直起落飞机

Internal Force Calculation of Crossbeams of Three Gorges Project Ship Lift Tower with 3D FEM fan-in-wing VTOL

过渡速度范围-垂直起落飞机的正应力由与材料的截面垂直的力引起。

Normal stress refers to the stress caused by forces that are perpendicular to a cross-section area of the material .

它将具有垂直起落能力，并配备有应急机体降落伞，而且它将能够使用多种燃料。

It will have a vertical take-off and landing capability and emergency airframe parachutes , and it will be capable of using various fuels .

对某新型直升机垂直起落状态地面共振初步分析，采用经典的空间动力模型进行计算。

This paper described the primary analysis of a new model helicopter ground resonance in taking off and landing by employed classical spatial dynamic model .

垂直/短距起落飞机

Vertical / short take-off and landing aircraft