About the helicopter/关于直升机的问题

I finished a mod for a flying vehicle, adding some “unbalanced” components to make the air fortress possible, but I noticed an important problem - it cannot take off when the vehicle weight is more than about 5000kg.
I tried to modify its power, but it didn’t help much.
How can I solve this problem?
My game version is 0.G version.
Thank you!
You can download my mod from the following URL (Baidu Cloud Storage)
百度网盘 请输入提取码

是这样的,我完成了一个飞行器相关的mod,添加了一定的“不平衡”的组件让空中堡垒得以实现,但是我注意到一个重要的问题——它在载具重量超过大约5000kg时无法起飞。
我尝试修改它的动力,但是没有太多的帮助
请问我应该如何解决这个问题?
我的游戏版本是0.G版本
谢谢!
您可以在以下网址(百度网盘)中下载我的mod

Thanks for any possible help!