R/C tank with triangular tracks

Hi all!
I present a model of an all-terrain vehicle with triangular tracks.
The description of the model is given in the attached files: CrawlerDeltaEng.doc, CrawlerDeltaEng.pdf, CrawlerDeltaRus.doc, CrawlerDeltaRus.pdf .
The all-terrain vehicle is equipped with an FPV camera with backlight. Two TT gear motors are used as engines (each for its own track). The power source is two 18650 batteries with the ability to charge via a USB type-C connector.
This model uses flexible, one-piece printed tracks made of TPU plastic. The total number of tracks is 78 per track. Each track is driven by its own TT motor-reducer. Ball bearings are used in the chassis to reduce friction.
In the front part of the body there is a servo drive, on the axis of which a bracket with an HC-04 ultrasonic range finder – the “head” – is fixed. It is assumed that during movement in automatic mode, the rangefinder rotates left and right within an angle of ≈120° to detect obstacles.
Also in the front part of the body