it: the six-cylinder GAZ-40P gasoline engine, which produces 90 hp, had insufficient power, while the 205-hp YaAZ-206B was too heavy. Instead, the BTR was fitted with two six-cylinder gasoline GAZ-40P engines (67 kW) located side by side in the rear of the vehicle. The combined power of the engines is 180 hp (134 kW). Each engine propels two of the vehicle's axles. The engine on the right propels the second and the fourth axles, while the one on the left propels the first and the third axles. Each engine has its own four-speed gear box with a single-shielded hydraulically controlled clutch and an exhaust. Each axle has its own differential and is hung on transversal torsion bars. The first two axles each have two hydraulic absorbers, while the third and fourth only have one. The first and second pair of wheels can be turned. The gaps between the first and second axles and between the third and fourth axles are even. The gap between the second and third axles is slightly larger than the other ones. The two-engines setup has an advantage in the fact that each engine could work without the other. This means that if one engine is disabled, it does not affect the other one and the vehicle can still move, albeit with reduced speed. This setup, however, caused several problems that either do not exist in single-engined vehicles or were not as serious: the design itself was complicated and the amount of work that had to be done during maintenance and repair was higher than in vehicles with a single engine. The engines themselves were originally intended for truck use, which meant that they were working in extreme conditions not originally envisioned for them. Because of this, engine breakdowns were frequent. The vehicle also used large amounts of fuel and caught fire easily. Despite all this, the two-engines setup was used in all BTR-60 production models as well as most variants of the BTR-70. The single-engine setup was introduced in the BTR-80. Amphibious capability The BTR-60 is fully amphibious, propelled in the water by a jet centrally mounted at the rear of the hull. It was, however, prone to breakdowns. When not in use, it is protected by the sideways opening lids. Before entering the water, the trim vane at the front of the hull should be erected to prevent water from flooding over the bow.