My aircraft wants to fly by it self

after the last upgrade my aircraft wants to launch itself down the runway

Have you checked that your Assists are off in the Assistance Menu?

Going to need way more information than this to be able to offer any meaningful advice.

Hello @corcky37 , we ask that people use Community Support for any help that they may need, instead of using General Discussion. I have moved your thread.

Double check your control assignments. Upgrades sometimes reset them.