Aircraft veering off runway from start of takeoff roll

[hoibratentom]

Hi !

I have a B52 which starts to veer of the runway at the start of the takeoff
roll without me being able to stop it.

Also some airplanes loading with full throttle even though I have the throttle
on my controller at idle power.

Suggestions ?

Regards

Tom Hoibraten

hoibratentom@hotmail.com