THIS IS A FIRST IN SIMPLEPLANES…
(If you do not read these instructions, you will not be able to use this aircraft.)
A few days ago, I had a question in my mind:
What if the transmission system in cars also existed in airplanes?
Since I am not an engineer, I made this in SimplePlanes.
Control is difficult, but not impossible.
Here is how:

AT TAKEOFF, DO THE FOLLOWING
Turn on Gear 1, Gear 2, Gear 3, Gear 4, Gear 5 and Gear 6
(AG1, AG2, AG3, AG4, AG5 and AG6)

AFTER TAKEOFF
After exceeding 200 km/h, turn off some gears and turn on others to adjust fuel consumption.
The fastest gears are Gear 6 and 5
The slowest gears are Gear 1 and 2
To change gears, completely cut the throttle and turn the gear on/off

Note: At least 3 gears must be active, otherwise stalling is only a matter of time.

And if you ask what this is useful for, I will explain it in one word:
To adjust fuel consumption and control fuel consumption.
Have a good flight!!! ✈️
B.B.