The calculated distance (air line) between Platnirovskaya and Takhtamukay is approximately 38 miles respectively 61 kilometers.
By car or train, the actual journey to Takhtamukay is certainly longer, as only the direct route (as the crow flies) between Platnirovskaya and Takhtamukay has been calculated here.
Air line (approximately)
61 kilometers
33 nautical miles