An engine based on German technology stolen almost 20 years ago has been discovered in the Shahed-136 drones that Russia bought from Iran. 4 em auto;padding: 5px 15px;border: #eeeff0 15px solid;background: #eeeff0;font - weight: 400; } We have launched English Twitter! Follow us! Taimur Khan, a Gulf analyst at CAR, told CNN that Iran's UAV systems are constantly being improved and modernised and "have proven to be increasingly accurate in terms of guidance and targeting systems and jamming capabilities. But until that happens, the Russian military is likely to remain a willing buyer of hundreds of other drones from Iran, a country that has turned sanctions evasion into a fine art in building its own weapons industry