ZiU-11 (aka ZiU-681) is an experimental Soviet high- floor medium-capacity trolleybus for intercity passenger transportation based on the ZiU-9 trolleybus, shortened by one section. It was in regular operation in Volgograd and Cheboksary .
| ZiU-11 | |
|---|---|
 Volgograd, ZiU-11 No. 4001-route 1A | |
| Manufacturing plant |  ZiU , Engels , USSR |
| Project, g. | 1972 |
| Produced, years. | 1973-1976 |
| Assigned service life, years | 12 |
| Instances | five |
| Curb weight, t | 8.1 |
| Max. speed, km / h | 100 |
| Capacity, people | |
| Seats | 22 |
| Nominal capacity (5 people / m²) | 80 |
| Full capacity (8 people / m²) | 100 |
| Dimensions | |
| Length mm | 9 600 |
| Width mm | 2 970 |
| Roof Height, mm | 3 355 |
| Salon | |
| Number of doors for passengers | 3 |
| Door formula | 2 + 4 + 4 |
| Interior lighting | incandescent lamps |
| Engine | |
| Type of | DK-210 |
| power, kWt | 110 |
| Control system | RCSU |
| Operating voltage, V | 400-700 |
History
From 1973 to 1976, the Uritsky plant in the city of Engels, Saratov Region , produced five experimental trolleybuses of the model that received the ZiU-11 index [1] , however, due to further modernization of the ZiU-682 trolleybus, this model did not go into series. All five manufactured copies were put into operation in Volgograd and Cheboksary, where they worked until the end of the 1980s.