One of the main steps which the new revolutionary thinking in military affairs introduced to the navy was carrier borne aviation. As early as 1925, PCNA decided to convert old passanger ship Sredizemnoye More into training and trialling carrier. It featured flushdeck arragment and carried 20 aircrafts maxium. It served it's whole carrieer from 1928 into 1938 to train and evaluate carrier aviation concepts and doctrines. It sunk in a tragic accidence after been hit by a aircraft approaching the ship in a attempt to land on top of it. It caught fire and sunk soon after.
At the same time as Sredizemnoye More was being converted, plans were already made for front-line carrier force. It was decided that the large battlecruisers Afinygrad and Solum to be converted as a carriers in similar fashion as done in abroad. Conversion started in 1928 and 1929 and the ships renamed to Krasnoye Zvezda and Krasnoye Znamya were commissioned in 1931 and 1932. They featured large two-storey hangar admidship with landing deck streching over it in bow and stern. The upper hangar also featured auxiliary flying-of deck in the bow. These ships had heavy gun armament of 8 single 203mm guns (tough later replaced with more AA guns) so they could fight against ships up to cruiser class without using the airgroup. 48-50 aicrafts were carried. They made up the bulk of Kominterns carrier force trough out the 30's and seccond world war. Bombers of both ships took part of the sinking of Conte Di Cavour in 1940.
Altough the early success, carrier fleet didn't establishe itself as the main force of the fleet untill it prooved it's value in WWII. Thus the naval buildup in the 30's didn't consider carriers to be top priority and this reflected heavily on the first purpose-build carriers of the fleet. The "old guard" in PCNA wanted more results and experience of carrier operations before they allowed more carriers into the naval building program. Eventually two light carriers were included in the 1935 plan and project 71 emerged. It followed Japanese practise to divert the exhaust gases into the sides of the ships by side-mounted funnels. Airgroup was 10 bombers and 20 fighters. Two ships, Krasnoye Vympel and Znamya Sosialitsima was completed in 1937 and 1938. Armament was solely AA orieted with 8 single 100mm and 4 quad 37mm guns.
As japanese carrier force started to expand in the 30's and after some succesfull wargames showing the potential of mass carrier strikes (demostrated in major naval exercise in 1937 when simulated carrier attack took the main battleline completely suprised) the carrier arm begun to gain more positive support in PCNA. Decision to build a strong specialised carrier fleet which would consists large fleet carriers with dedicated fast escorts (effectively continuos for the pr.69 class) operating as a carrier task force seperately from the battleline. The concept was put in effect as "light section" including all 4 existing carriers, 2 of the large pr.22 cruisers and varying number of MK cruisers. This force was given quite bold front line role and it was in no way held back as was the battleship fleet druing the war. The light section was often sended as the front and main fighting unit against the enemy.
The new construction to form the seccond section was project 72. It different alot from the earlier Komitern carriers with introducing the british-type "amoured box" concept for the hangar. This was tought to be neccerical for the more agressive role of the new carrier arm. This however reduced the airgroup to similar size as in the alot smaller pr.71. Armament was also heavy, 8 twin 122mm dual-purpose guns as well as 8 twin 76mm and 20 single 45mm AA guns. 4 units were planned and laid down between 1939-41 to which the first two, Baku and Tbilisi were given priority in construction in the gloom of new world war. They were completed in only a two year both commisioned late 1941 despite the heavy toll of the operation Barbarosa to the whole nation. Seccond pair, Volgograd and Nikolaev remained unfinished untill work continued in 1943 when Odessa pocket is released. Both ships were again given high priority (at this point, carriers were promoted to the main striking unit of the whole fleet) to complete and they were in commission in november and december 1944.
After early success with the carriers in the battle of Alexandria and Japanese triumphs in pacific, it was evident that carriers were the new kings in ocean. To complete the 4 pr. 72, a huge project 716 design was put in reality. It started as more of a concept of just how big carrier can be, but the needs for more and more aircrafts to the oceans put it into the frontline of all designs and work for the monster was started in 1940. It was named after Vice-Admiral Kostromitinov who was the pioneer of Komiterns carrier fleet and who died along the Sredizemnoye More in 1937. The carrier had overall lenght of 300 meters and was fitted with 106 aircrafts. Armament was 8 twin 122mm DP mounts, 10 twin 76mm AA mounts, 8 quad 37mm mounts as well as 6 single 45mm guns. Altough it was laid down in 1940, work of it was not resumed untill 1943 and it was not given as high priority as the pr.72's. It was completed only after the war in 1946.
The need of more carriers grew as long as the war went onwards. During the hectic times on 1941-43 several studies were made ranging from fastly build auxiliarry carriers to conversion of nearly every other warship of over 200m lenght. Most serious proposals were converting the pr. 22's into a carriers but their role in carrier escort and later in retaking pasific ilands were too important. Instead the third hull of pr. 69 heavy cruisers which was unfinnished at the time of Barbarosa was decided to complete as a fleet carrier. The conversion begun in 1943 and was finnished just prior the end of the war, leaving the ship however unready for actual combat operations. It featured two-storey hangar with only flightdeck lightly amoured (unlike with the pr.72 with whole hangar being amoured from sides as well) and carried 76 aircrafts. It was armed with 8 twin 122mm DP guns and 16 new stabilised dual 45mm AA mounts.
[no aircrafts were included to the drawings due the concept of the sheet and old propellor-powered aircrafts groundmode being too difficoult to drawn in shipbucket scale with proper results]
Now I'm done! I will start working on the cold-war/modern era but before that, I need to come up with 65 years of history first.