The calculated distance (air line) between Platnirovskaya and Dvubratskiy is approximately 23 miles respectively 37 kilometers.
By car or train, the actual journey to Dvubratskiy is certainly longer, as only the direct route (as the crow flies) between Platnirovskaya and Dvubratskiy has been calculated here.
Air line (approximately)
37 kilometers
20 nautical miles