 Maxim Gorky tested the first Soviet naval helicopter , the Kamov Ka @-@ 10 in December 1950 and began her refit in mid @-@ 1953 . This was planned to include a complete overhaul of her machinery while her radar , fire @-@ control systems and anti @-@ aircraft guns were to be replaced by the latest Soviet systems . Torpedo bulges were to be fitted which would increase her displacement by 1 @,@ 000 metric tons ( 980 long tons ) , with consequent penalties to her speed and range . The navy re @-@ evaluated the scope of the work in 1955 and deemed it insufficient to create a fully modern ship and suspended the refit . Maxim Gorky was sold for scrapping on 18 April 1959 after the navy had decided that she wasn 't needed as a missile @-@ test ship . 
