Stadler says the order comprises five different types of coach, and all of the vehicles will be assembled at its Altenrhein plant in Switzerland.

The vehicles will be equipped with interchangeable Rafil/DBAG type V wheelsets to allow operation on both 1435mm and 1520mm gauge networks.

The coaches will be delivered between mid-2016 and mid-2017 and will be formed into three sets of 10 vehicles. First class sleeper cars will have 16 beds with en suite washing facilities in each cabin, while second class sleepers will accommodate 34, with a single toilet and shower in each coach. Three vehicles will be composite coaches and three will be designed for passengers with disabilities. The dining cars will seat 28 passengers.

The contract, Stadler's first rolling stock order from Azerbaijan, includes spare parts and an option for an additional 70 sleeper coaches.