Petrol Boosted Tricopter

Good morning

Can you please help me get an answer to the question
Regarding connecting the ICE servo throttle to the pixhawk

Dear gentlemen, good afternoon! I am asking for your expert analysis. At the moment, I am working on a hybrid quadcopter project. As a booster motor, I will use an internal combustion engine with a gearbox for coaxial rotation of the screws. Will the use of a coaxial screw rotation scheme make this design more stable than the tripter scheme implemented by you? Can I use the software with the addition of a booster to implement this project? Thank you in advance for the answers!