Question: How many ships were to be disarmed and converted to merchant use?
About the article "Treaty of Versailles", section "Military restrictions".

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Fleet tenders were British merchant ships that were fitted with a wooden superstructure to resemble battleships during the Second World War.
They were known as fleet tenders for security reasons, and were built to fool German reconnaissance planes.
Three ships were converted in 1939 and another one (HMS "Centurion") in 1941.
The three converted in 1939 were 7,900-tons merchant ships:  SS "Pakeha" as HMS "Revenge"  ASS "Waimana" as HMS "Resolution"  SS "Mamari", "Fleet Tender C" as HMS "Hermes" These three ships never left the home waters of the United Kingdom and became obsolete in 1941.
The SS "Mamari" was wrecked off The Wash and then attacked by German torpedo boats.
The SS "Pakeha" and SS "Waimana" were converted back to merchants and returned to cargo use, but as the "Empire Pakeha" and "Empire Waimana" under the Ministry of War TransportHMS "Centurion" was a First World War-era battleship, disarmed under the Washington Naval Treaty.
In 1941 she was fitted with a dummy after-funnel, mainmast and main armament, to resemble HMS "Anson".
She left the home waters to sail around the Cape of Good Hope to Bombay and in June 1942 was a part of a convoy to Malta (operation Vigorous).
HMS "Centurion" was used as a blockship off the Normandy coast as part of the Gooseberry shelter for Omaha Beach. 
The rival commanders and propagandists often exaggerated or discounted ships' capabilities during the 1814 campaigning season.
Most of the American schooners (converted merchant vessels which had been alarmingly unstable with their heavy armament) had been disarmed and were now used as transports only.
The British had re-rigged their schooners as brigs and renamed most of their vessels since many of them formerly belonging to the Provincial Marine had names which duplicated those of Royal Navy ships in commission at sea. 
Japanese raiders were converted merchant ships which would often use their comprehensive armament to cause havoc in the Indian Ocean against Allied shipping. 
The "Ormsby" class began as a class of Navy transport ships (classification AP).
Like many other transports, they were redesignated attack transports (APA) on 1 February 1943, the date on which the Navy formalized its separate classification of transport vessels into ordinary transports and attack transports.
The three ships of the "Ormsby" class were based on the Maritime Commission's ubiquitous Type C2 merchant/auxiliary hull (specifically, the C2-S-B1 type).
This was a pre-war merchant ship hull type which had been specifically designed with prospective Naval auxiliary service in mind.
The three ships of the "Ormsby" class were laid down in rapid succession in July–August 1942 by the Moore Dry Dock Company of Oakland, California, and commissioned within a month of one another in June–July 1943.
The period of time from the laying of the keels to commissioning therefore, was about 12 months for each ship - a fairly average timespan for C-Type vessels converted to warships.
Each of the ships was armed with two 5"/38 caliber dual-purpose guns, two Bofors 40mm guns, and from 16 to 22 20mm guns.
The 20mm gun would eventually prove to be of limited use against air attack and later attack transport classes were fitted with more 40mm weapons instead.
The ships had a good balance of troop and cargo capacity. 
Merchant ships may be divided into several categories, according to their purpose and/or size.