Jelcz PR110D

The predecessor of Jelcz PR110D bus was a French Berliet PR110 TOURISME (1977). The bus was built on its basis in 1984 with several units of the bus named Jelcz PR110D. The letter D means long-distance.^[2]

The engine was a Mielec SW680 / 164. Initially, it reached 186 horsepower power, however, since 1988 the engine had the power of 202 HP and with the marking SW680 / 165. The mechanical gearbox, which was used, wore the designation S6-90 and had 6 gears. The bus steering mechanism had a ballscrew hydraulic power of type 8065. Jelcz also had a dual-circuit brake that worked on the front axle and rear axle; the emergency brake and parking brake were pneumatic, working in the rear axle. The engine brake was activated pneumatically by cutting off the fuel injection and exhaust flow throttling.^[3] Lowering the front wall of the cab resulted in lower drag, and better handling on the road.^[4] Under the floor of the bus there is an extensive baggage compartment with a capacity of 6m³ and fuel tank with the capacity to have 250 litres. Jelcz PR110D was 12000 mm long, 2500 mm wide and 3180 mm high.^[5]