The first vehicle we purchased with funds from a donation campaign was a trolleybus DAC-Chavdar 317ETr from the town of Pernik. This was the last preserved trolleybus of this model, which was produced jointly between the Romanian company DAC (Rocar) and Chavdar-Blagoevgrad. The trolleybus was produced for the city of Vidin, but since the trolleybus service in the city was never started, all the vehicles from the order were bought back by the city of Pernik. After about 15 years of operation, the trolleybus was put up for sale by a bailiff as part of the measures to liquidate Pernik’s trolleybus transport. Thanks to our efforts, the trolleybus was saved and is now awaiting restoration in one of the Sofia trolleybus depots. Our interest in it is related to the fact that 23 trolleybuses of the same model were delivered to Sofia, 20 of them in 1986 and 3 in 1990. Due to their technical unreliability the trolleybuses went out of service relatively quickly – by 1995 they were all scrapped.
| Пълно име на модела | DAC-ЧАВДАР 317 ETR – 118 |
| Дължина | 16,58 метра |
| Ширина | 2,5 метра |
| Височина | 3,4 метра |
| Тегло | 14,8 тона |
| Места за сядане | 38 бр. |
| Максимален брой пътници | 156 |
| Максимална скорост | 60 км/ч |
| Врати | 4 бр. двукрили |
| Управление | реостатно-контакторно, с принудително охлаждане |
| Захранване | от 400 до 720 V (Номинално: 600 V) |
| Номинален ток | 275 А |
| Мощност на двигателя | 150 kW |
| Шаси и салон | от заварени стоманени профили, облицовани с ламарина |
| Задвижващ мост | среден – марка „RABA“ |
| Окачване | пневматично, плюс амортисьори |
| Спирачки | основна – въздушна, двуконтурна, която действа на всички колела; спомагателна – електродинамична; паркинг спирачка – пружинна, с обратно действие |
| Минимален радиус на завиване | 23 метра |
| Година на производство | 1989 г. |
