There are a number of controls within the game that have a default “mode” which the game sets upon spawning.
These are settings such as
Cannon Ballistic computer
Manual Engine Control
These are 3 of a number of settings that reset upon respawning, or even simply landing and repairing within SB. Meaning they need to be toggled each and everytime you take off.
The suggestion is simple and an option within the settings to set the default mode for these, so that it is not required to toggle them each and everytime you take off.
I personally have both auto wing-sweep and Cannon ballistic computer set to the same binding and toggle it each and everytime I take off automatically these days, without even thinking about it as it needs to be pressed every single time I take off.