the five largest aircraft carrier classes in the world

 Here is a list of the five largest aircraft carrier classes in the world based on size and full-load displacement:

 USS Gerald R. Ford Class 

1. USS Gerald R. Ford Class (United States)

Displacement: Approximately 100,000 tons

Length: 337 meters

Capacity: More than 75 combat aircraft

Description: The US Navy's newest and most advanced nuclear-powered aircraft carrier class.

USS Nimitz Class 

2. USS Nimitz Class (United States)

Displacement: Approximately 97,000 tons

Length: 332.8 meters

Capacity: More than 60 to 90 aircraft

Description: The backbone of the US Navy fleet for decades; also nuclear-powered.

Fujian / Type 003

3. Fujian / Type 003 (China)

Displacement: Approximately 80,000 tons

Length: Approximately 316 meters

Capacity: More than 60–70 aircraft

Description: China's largest aircraft carrier, equipped with electromagnetic catapult launch system (EMALS) technology.

Shandong / Type 002

4. Shandong / Type 002 (China)

Displacement: Approximately 66,000–70,000 tons

Length: Approximately 305 meters

Capacity: Approximately 36–40 aircraft

Description: China's first domestically built aircraft carrier utilizing a ski-jump deck system.

Queen Elizabeth Class 

5. Queen Elizabeth Class (United Kingdom)

Displacement: Approximately 65,000 tons

Length: 280 meters

Capacity: Up to 40 aircraft (including F-35Bs)

Description: The largest warship ever built for the Royal Navy, featuring a distinctive dual-island deck design.

The rejuvenation and retrofit process of the former ITS Giuseppe Garibaldi aircraft carrier by the Indonesian Ministry of Defense

 The rejuvenation and retrofit process of the former ITS Giuseppe Garibaldi aircraft carrier by the Indonesian Ministry of Defense and PT PAL Indonesia is focused on three main aspects: service life extension, operational adaptation, and integration of Indonesian Navy doctrine. Because this ship is over 40 years old, a comprehensive repair is needed so that it can be operated optimally until 2040. 

The following are the main points that will be worked on in the rejuvenation process: 

1. Modernization of Propulsion and Electrical Systems 

Replacement of Main Generators: Vital components such as old diesel generators will be replaced with new ones to ensure a stable supply of electrical power to all ship systems. 

Turbine System Overhaul: Complete maintenance (overhaul) on 4 Fiat gas turbine units to ensure the ship remains able to reach safe operational speeds in Indonesian waters. 

2. Hull Overhaul and Interior Refurbishment 

Hull Structure Repair: Corrosion check, steel plate reinforcement, and hull repainting using a special anti-marine biota coating. 

Safety Standardization: Rejuvenation of the fire suppression system, renewal of rescue facilities, and adaptation of crew accommodation space to meet the comfort and safety standards of the Indonesian Navy regulations. 

3. Combat Management System (CMS) & Weapons 

Integration TNI Communication System Installation: Installation of integrated tactical communication devices so that this aircraft carrier can be directly connected to the TNI Network Centric Warfare data network. 

New Weapon Installation: Integration of the Close-In Weapon System (CIWS) and air defense missile launchers that are aligned with the Indonesian Navy command ammunition inventory. 

Sensor and Radar Update: Replacement or improvement of the function of air/surface search radars and sonar systems to be able to detect modern threats. 

4. Flight Deck Function Modifications 

Conversion into a Helicopter/Drone Carrier: Since Indonesia does not possess a vertical takeoff and landing (STOVL) fighter jet such as the AV-8B Harrier or F-35B, the deck will be modified specifically to operate rotorcraft (AKS/transport helicopters) and tactical drones (high-powered drones). 

Air Navigation System Upgrades: Installation of helicopter landing visual aids and an aerial refueling system on the deck.

The retrofit (repair and modernization) cost of the ITS Giuseppe Garibaldi light aircraft carrier, donated by Italy to Indonesia, is estimated to range between IDR 7.2 trillion and IDR 16.8 trillion ($450 million US). The Indonesian Ministry of Defense initially set an initial estimate of IDR 7.2 trillion to IDR 7.5 trillion. However, in discussions with Commission I of the Indonesian House of Representatives (DPR RI), this figure has the potential to increase to IDR 16.8 trillion depending on the final specifications, technological adjustments, and installation of weapons systems requested by the Indonesian Navy.

The world's first aircraft carriers

 The world's first aircraft carriers can be categorized based on their evolving functions, ranging from modified versions of other ships to ships designed specifically to carry aircraft.

Here are some milestones in the history of the world's first aircraft carriers:

Hōshō (Japan): The world's first ship designed and built specifically from the outset as an aircraft carrier (not a modified version), and was successfully commissioned in December 1922. Although the British began construction on a similar ship earlier, the Japanese completed it faster.

HMS Argus (England): The first aircraft carrier to feature a full-length flat deck, allowing aircraft to take off and land freely. This ship entered service in September 1918, but was modified from an unfinished merchant ship.

HMS Hermes (England): The first ship designed specifically as an aircraft carrier from scratch (its keel was laid in 1918), but due to various tests and budget constraints, it was not officially commissioned until 1924, after Hōshō.

USS Langley (United States): The US Navy's first aircraft carrier, commissioned in March 1922. It was converted from a coal carrier called the USS Jupiter.

The carrier was sunk in the waters around Cilacap, Central Java, Indonesia, by Japanese bombers on February 27, 1942.