Development of American Capital Ships: 1902-1922
The beginning of the 20th Century began with new leadership for the United States. The Republican ticket of William McKinley and Theodore Roosevelt would run on the concept of a "Square Deal" with the conservation of natural resources, control of corporations, and consumer protection. Roosevelt was unlike any preceding Vice President as he was highly active in the Senate, casting tie-breaking votes to his the President's agenda. Roosevelt traveled the country extensively by train and later automobile when Congress was in recess. He met everyday citizens, heard the working class's woes, and saw first the conservation movement's grand efforts. McKinley mainly focused on the international agenda with political reproachment to France and Spain and finishing the Panama Canal for global trade. His Mid-Atlantic accented speeches traveled thousands of miles by radio on the virtues of peace and trade reciprocity. McKinley entered office to an immediate global crisis with the Boxer Rebellion. His authorization of military forces to relive the besieged embassies in 1901 was the first use of American troops internationally since the liberation of the Philippines some two decades ago. Though internationally lauded, the international deployment showed cracks in the existing forces, with aged equipment, an overreliance on civilian shipping, and a lack of training funds for troops in garrison. The Army adopted the 30-06 cartridge with spitzer bullet and steam tractors to pull heavier guns and howitzers. The Navy received the most attention in the McKinley administration with calls to match the Royal Navy in tonnage. Retired Admiral Mahan called for a 2+2 building plan where the United States would lay down two battleships and two armored cruisers each year. Additionally, the Coast Guard would be expanded, several protected and scout cruisers, ocean-going destroyers, overseas coaling stations, and a host of auxiliary support vessels.
With McKinley's blessing, Roosevelt would champion the 2+2 naval bill in which the United States would lay down two battleships and two armored cruisers for the next five years ending right as election season was in full swing. In addition to four capital ships funded, three scout cruisers and six destroyers would also be annually authorized. The first ships funded were the Minnesota class Battleships and Pittsburgh class of Armored Cruisers. Both types were incremental improvements over their preceding Connecticut and Tennessee cousins. The Minnesota's took the proceeding Connecticut's hull and lengthened it by 50 feet and replaced the ram bow with an upwards flared clipper bow for improved seakeeping. The radical changes would be found in its propulsion and armament as steam turbines would be introduced to hit 22 knots on trial speeds. The new secondary battery of 5"/50 guns would replace the 7",6", and 3" guns of the preceding Connecticut's. The Pittsburgh's were similar in scope with steam turbines, and clipper bow. The increased length allowed the ships to reach 25 knots on trial, and the secondary battery was similarly condensed into uniform 5"/50s. The increase in length also enhanced habitability with enlarged berthing and storerooms. It increased coal bunkerage for a range increase of 8,000 nautical miles at 10 knots steaming.
With the conclusion of the Russo-Japanese and Vice President Roosevelt's Nobel Peace Prize, the Naval powers around all came to the same conclusion: big guns and speed were the future. The Royal Navy stunned the world with Dreadnought's launch in February 1906, while other powers still had paper designs. The USN had reached similar conclusions will designing a replacement for the Minnesota's with the South Carolina class using the same hull and machinery, though ditching the 8" wing guns for four super firing 12"/45 dual guns. The ability to super-fire the main battery gave South Carolina and Michigan a distinct advantage in broadsides. As part of the 2+2 plan, the South Carolina's were joined by the Birmingham class of Armored Cruisers. A further improved Pittsburgh with the two 10" turrets replaced with 12"/45 guns to match the latest battleships in armament. The USN of 1907 would lay down the Delaware class of Battleships and Sacramento class of Armored Cruisers, which introduced the heavier 12"/50 and 5"/51 guns. The Delaware Class was a significant improvement over the South Carolina's with an enlarged hull featuring a fifth turret and improved subdivisions; the Sacramento Class ACR could be seen as a subclass of the Pittsburgh with an improved armament scheme.
The Election of 1908 was an unmistakable landslide for Teddy, who ran on a continuation of the "Square Deal," calling for a national income and inheritance tax, an 8-hour workday, and a federal savings bank. As the global Dreadnought race began, Roosevelt also championed an American Navy second to none. The election-year would see the Florida and Congress class of battleships and battlecruisers lay down. The Florida's were a wholly new design over the preceding Delaware's as they carried four triple 12"/50 turrets, for a total of a 12-gun broadside. The use of four triple turrets vs. six dual turrets allowed for a much tighter armored belt and weight savings; their casemate 5" guns were also moved up one level to be more effective in heavier seas. The Congress Class was the USN's first "true" battlecruiser class, with 9 12"/50 guns in three triple turrets; historians would later label the preceding three classes of armored cruisers as "semi-battlecruisers" as an evolutionary path. While battlecruisers and previous armored cruisers had been capable of serving in the battle line, American doctrine stemming from Tsushima had these large ships in the center of their scouting force. Unfortunately, the Congress herself began the trend of increasingly expensive and put a pause on renewing the 2+2 plan in favor of 2 battleships and 1 battlecruiser laid down per year. The new 2+1 plan saw additional directed towards new protected cruisers, ocean-going destroyers, and a robust auxiliary fleet for long-duration voyages.
Teddy's first year in office would also be the swan song of American 12" capital vessels with the Wyoming twins and Susquehanna battlecruiser. All three ships would feature oil-driven turbines, new special treatment steel armor, and mechanical fire control in a centralized plotting room. Though both classes were nearly identical to the 1908 ships, the use of oil-driven turbines significantly reduced manning requirements in the engineering department; twin rudders were also fitted for the first time. The Susquehanna was a significant improvement over Congress with an increase of two knots speed without a significant increase in her engineering plant. Unfortunately for both classes, the Royal Navy's Orion class of "Super-Dreadnoughts" with their 13.5" guns launched the "Super-Dreadnought" era of frenzied building. An American response had been in the works since 1908 with a joint American-Mexican program to develop a suitable 14" gun for future dreadnoughts of both navies, and was personally oversaw by Roosevelt. The subsequent New York and Brandywine class of capitals laid down in 1910 were more of a reaction to when HMS Orion and Lion were laid down in 1909. The New York's were somewhat of a comprised design with a return to dual turrets as triple 14" turrets were not yet available. They looked like an enlarged Delaware class with five twin 14" turrets. They were otherwise an improved Wyoming with identical machinery and thickened armored belts. The Brandywine class of battlecruisers represented the first American BCs produced en masse. Thought novel at the time, the Brandywine's were the first to feature the "All or Nothing" armor scheme which ditched the light and medium armor for heavier armor around the vital engineering and magazine spaces. This new armor scheme allowed minimal weight growth, despite having four twin 14" turrets. The Brandywines were further novel by using a Turbo-Electric transmission as mechanical gearing for a ship so immense was not yet practical. While somewhat temperamental, the electric transmission afforded a 20% increase in fuel economy over direct-drive and increased subdivision potential. The Battlecruisers maintained their 28-knot speed without noticeable vibration.
The Nevada class of 1911 were the first newly designed battleships since the Florida class of 1908 and fully incorporated the lessons learned from the Great White Fleet expedition. The twin ships would feature the same 10 14"/45 guns of the New York's, though in a unique arraignment of two triple and two dual turrets rather than five dual turrets. Starting with the Nevada's, tripod masts would be fitted carrying range finding gear; their new turrets had their elevation doubled to 30 degrees for more significant range and deck penetration. Some 5"/51 casemates were further moved up in the superstructure for weather protection. The use of all-or-nothing armor gave significantly better protection per weight over their critical areas when compared to their contemporaries, with many contemporary critics claiming Nevada was as revolutionary as Dreadnought. For the first time, electricity was heavily used throughout the ship, with electric motors found in the turrets and forced air ventilation found throughout the vessel improving crew comfort. The follow-up 1912 Pennsylvania pair re-introduced four triple turrets to the USN and the 6" casemate in response to the Iron Duke class. The Pennsylvania's were noticeably longer by some 30ft over the Nevada's at 640ft and a higher raked clipper bow for improved seakeeping. The heavier secondary battery was the new 6"/53 as found on the latest cruisers; Besides the armament change, deck armor was improved by a full inch due to fears over the new British 15" and rumors over a Japanese 16" gun. The 1912 building plan would also see the eldest dreadnoughts go through a midlife modernization encompassing a fuel oil conversion, higher pressure boilers, 12"/50 guns with elevation doubled to 30 degrees, increased deck armor, and updated fire control. Starting with the South Carolina and Birmingham classes in FY12, the in-depth modernization scheme was seen by the Navy as a workaround to Congress not allowing additional new capital ships; fortunately for the Navy, they got their wish the following year.
The fiscal year buy for 1913 was a significant shift in funding for the Navy and, unfortunately, a further step in global tensions. The recent election of 1912 was a massive landslide for Roosevelt's second term in office, and his increase in taxation helped swell the national budget. First and foremost, on his mind was ramping up a new battleship to catch up with the Royal Navy and overmatch the Germans. The British and Canadian plans for nine Queen Elizabeth class fast battleships could not go unchallenged by the Americans. Congress authorized an unprecedented five ships for FY13, three New Mexico class battleships and two Bon Homme Richard battlecruisers. Both classes would feature the latest 14"/50 guns in three-gun turrets and cutting-edge turbo-electric drive for their engineering plant. The new turbo-electric plant was built off lessons from the Brandywine battlecruisers with higher reliability and easier access for removal. With an abundance of electricity, the habitability of the vessel drastically increased with all-electric galleys, increased refrigeration, and better cooling in turrets and engineering spaces. The four turrets housed a higher velocity 14"/50 gun. All three guns per turret could elevate and be loaded independently; electric motors replaced hydraulics, and semi-automated shell handling allowed for all-angle loading of the main battery. Propulsion received a similar bump over the Pennsy's with an additional 8,000 horsepower to 40,000 HP and electric transmission propelling the ships to 23 knots in a half attempt to match the QE's speed. The turbo-electric transmission allowed for a heavily improved underwater protection scheme as well. The Bon Homme Richard battlecruisers were a similar improvement over the Brandywine's. The class ditched the four dual turrets for three, three-gun turrets, identical to those used on the New Mexico's. The beam was widened by several feet to accommodate the broader barbettes though length remained nearly identical. With a reduction in main battery turrets, armor thickness in the central citadel could be shortened and substantially thickened to the point where naval historians considered this class to be America's first Fast-Battleships. The modernization of older vessels also continued with Delaware, Sacramento, and Florida class vessels. The three classes would receive similar treatment with a fuel oil conversion, higher pressure boilers, doubling gun elevation to 30 degrees, and updated fire control. Despite the increase in armor, the improved oil burning and higher pressure machinery kept the ship's flank speed of 21 knots.
Despite mounting global tensions heading in 1914, Congress authorized a return to the 2+2 funding scheme for new capital ships with the Tennessee class battleship and a repeat pair of Bon Homme Richard's; as well as modernization to the Congress, Susquehanna, and Wyoming 12" ship classes. The Tennessee's would be the USN's and the world's first battleships to mount 16" guns. Development of the new 16" rifle began as the New York's were laid down, and rumors of German and British 15" guns began swirling. While the 14"/50 was an excellent stop-gap, the 16"/45 reigned king with higher range and velocity over the British BL 15" gun. From an acquisition standpoint, the Tennessee class was quite economical to purchase. They were essentially repeat New Mexico's with four, two-gun 16"/45 turrets. The turrets themselves were designed to fit in the same diameter as the preceding 14"/50 three gun turrets of the New Mexico's, standardizing of parts were maximized down to the ball bearings in the traverse mechanisms. Protection, speed, and range were identical to the preceding New Mexico's. Though two were initially funded for 1914, the unexpected July Crisis over Arch Duke Ferdinand's assassination and national demonstrations from the Preparedness Movement convinced Congress to invest in a third vessel, USS Hawaii, on July 25th. With all east coast yards working at near max capacity for domestic and foreign orders, Hawaii was laid down alongside California in the Navy's Mare Island shipyard as the first two capital ships built on the west coast. After the declaration of War by many Great Powers and the commencement of the Great War, the US and Mexico remained neutral. At the same time, their northern brother moved to the Western Front. 1914 would also see the most recent 12" vessels see modernization. Despite only a few years old, they were incredibly outclassed by the foreign Queen Elizabeths, Revenge, Ise, and Bayern fast battleships. Battlecruiser Congress would enter the deepest modern with her coal-burning machinery replaced by oil burning and geared turbines. Her boiler rooms were also cut in half due to the new "Bureau Express" three-drum boilers, which ran at a higher pressure and were far more compact. The removal of the direct-drive turbines and seldom-used cruising turbine and the new boilers was a weight savings of nearly 1000 tons. The increased power and weight savings from the new turbines with reduction-gearing boosted the Congress to 27 knots. While geared turbines had become standard on the Navy's destroyers and cruisers, Congress would be the first USN ship over 10,000 tons with the setup. Though not as efficient as turbo-electric drives, the geared turbines were at least 10-15% more efficient over direct-drive and lighter in mass. They consumed less volume than direct-drive and turbo-electric setups. Following suit would be Wyoming pairs and Susquehanna, which would retain their original speeds of 21 and 27 knots, respectively, by gaining significant torpedo bulges and deck protection armor. Armaments saw similar changes to the proceeding refits with main battery elevation increased to 30 degrees and improved fire control.
The following year 1915, saw an additional pair of Tennessee's laid down, Cuba & Oregon, and the construction of the Constitution-class of battlecruiser. Like the Tennessee's, the Constitution's were a straightforward improvement over the Bon Homme Richards with three, two-gun 16"/45 turrets replacing the three-gun 14"/50 arraignment. Speed and protection remained identical as well. Hoping for a quick war, President Roosevelt spent much of his efforts since August 1914 negotiating a cessation of hostilities and ceasefire to the global conflict. Though sympathetic to the Anglo-sphere, Teddy did not want American or Mexican bloodshed to solve the problems of the old world and dying empires. While Canada went to War, Mexico and the United States partially mobilized and enacted increased defense spending; the two countries assisted their northern brother with arms sales and producing the infamous "Eagle Boat" sub chaser. The failure of the Germans to make meaningful gains before the new year had them resort to increasingly brutal tactics and unrestricted submarine warfare, much to Roosevelt's frustration. Naval spending continued with the 1915 Naval Bill authorizing the two Tennessee's, three Constitution's, six scout cruisers, and fifty destroyers to be laid down. Not long after the first steel cutting attended by the President, newspapers around the nation had the sinking of the Lusitania in their headlines. With the deaths of 128 American and 36 Mexican citizens, the Preparedness Movement's call for intervention on the side of the Entente reached a fevered pitch. Having recently announced he would not be running for a third term, President Roosevelt echoed the popular sentiment. A Declaration of War against the Central Powers was being drafted in Congress. However, several Senators and members of the House were still fence-sitters. What broke the camel's back was the absolute arrogance of the German Zimmerman Telegram that blamed the citizens' death for traveling on a British liner and that Germany would continue to use submarines as it pleased. Letting the shock settle for a few days and double-checking that such an absurd statement was not a forgery, The House of Representatives passed the declaration of War with a solid majority, and the Senate passed theirs unanimously.
While men fought and died in Europe, the naval designers of Mexico and the United States worked tirelessly on their ultimate battleship design, the Colorado Class. Long had the Mexican and American governments enjoyed close industrial partnerships, and Presidents la Barra and Roosevelt had been close friends since the turn of the Century. Close cooperation of naval designs only deepened during the Dreadnought era with armor, armament, and engineering standards sharing uniform calibers and parts hence the term "Standard" Battleships; with the 14" gun and turbo-electric drive being notable highlights. The British Queen Elizabeth class had long been viewed at with awe for her 25-knot speed, armor, and 15" guns had been a winning combination yet to matched by either nation. Rumors of British and Japanese fast battleships with 16" guns had gone unfounded, with a draft spec sheet of the Japanese Nagato class acquired from Vickers. The Colorado class would be a distant cousin of the Nevada's. Using the Tennessee's as a starting point, the hull would be lengthened from 640ft to 720ft, and the beam would increase from 97ft to 104ft. Engineering would be increased by four boilers, with 14 three-drum boilers producing 80,000 shaft horsepower through a turbo-electric transmission running four shafts with twin rudders; the total loaded speed would be 25 knots to finally match the QEs. Primary armament would be similar to the preceding Tennessee's with four two-gun 16"/45 turrets; however, the turrets would be of a new design allowing for a 40-degree maximum angle and enhanced mechanical shell handling for a sustained 2 rounds-a-minute rate of fire per gun. The secondary armament received the most attention. The new design totally ditched casemates with all 6"/53 guns found in six twin turrets with three-port and starboard. The twin turrets were identical to those found on the Omaha class light cruiser, though with heavier armor; enclosed turrets were chosen as they resisted rough weather and significantly increased traverse and elevation. The Colorado's were further unique by finally ditching torpedo tubes from American Battleships and re-introducing the 3"/50 gun as an AA piece.
The 1916 budget funded six Colorado's, with two laid down every year between 1916-1918; uniquely, no battlecruisers were authorized as budget, and yard space was given towards constructing lighters vessels and merchant ships. An interesting note was funding for America's first aircraft carrier, the USS Jupiter, a turbo-electric oilers, would be converted into an aircraft carrier. With the war at full pitch and the United States as a full Entente member, President Roosevelt had little time to spare for the 1916 election, spending several months traveling between London, Paris, Rome, and the various front lines. Teddy would often visit the American and Mexican fleets stationed in Scapa Flow, waiting for the Germans to sortie out; when the cryptologists in London uncovered the High Seas Fleet plan to bombard England, Teddy rushed to the fleet by plane to board the American Flagship Pennsylvania. The American Fleet, having been flagged as the "5th Battle Squadron (American) in the Grand Fleet, was led by Vice Admiral Hugh Rodman, commanding Battleship Division 9 (New York, Texas, & Nevada), Battleship Division 10 (Oklahoma, Pennsylvania, & Arizona), 2nd Battlecruiser Division (Brandywine, President, & Essex), Cruiser Division 7 (Sacramento, San Jose, Birmingham, Dover), Destroyer Flotilla 1 (Five Scout Cruisers, 32 Destroyers in four squadrons) as well battleships Delaware, Wyoming, Florida, and Arkansas detached to reinforce each British Squadron. Additionally, Battleships New Mexico and Alaska, with their faster 23-knot speed, would reinforce the four fast Queen Elizabeth classes in the British Cruiser Fleet. A special note of historical attention to the participation of the British Carriers HMS Furious and Argus for supplying scouting and aerial superiority against the German fleet, the application of aircraft carriers in a major fleet action. Though the High Seas Fleet under Admiral Scheer was all but wiped out, the Allies would not come out unscathed. The Royal Navy lost three battlecruisers (Queen Mary, Indefatigable, & Invincible), three armored cruisers (Defence, Warrior, & Black Prince), 12 destroyers, and one Battleship HMS Hercules. The Americans lost Battleship Florida, Battlecruiser Essex, Armored Cruiser Dover, and four destroyers. Essex was caught by SMS Sachsen's 15" guns penetrating her turret armor and magazines in spectacular fashion;. At the same time, Florida was sunk between a combination of 12" shellfire and torpedo strikes. Several other American vessels were heavily damaged by shellfire, torpedos, and mines limping back to Scapa Flow. The USN won great admiration from the Royal Navy when Battleship Alaska came alongside the stricken Warspite to Sheppard her back to port. New Mexico fired some of the first American shots sinking the German battlecruiser Seydlitz. The Mexicans did lose one Armored Cruiser due to torpedos and eventual scuttling, with most of the crew surviving. For the Kaiserliche Marine, however, things were not well; the surviving ships consisted of one Bayern and two Konig battleships and two recently completed Mackensen battlecruisers, and a handful of lighter cruisers and destroyers. German losses were crippling, with 18 Dreadnoughts, 7 pre-Dreadnoughts, and 7 Battlecruisers lost through enemy action and scuttling. The Canadian and Mexican navies were crucial in saving many German sailors while under torpedo attacks from U-Boats. The battle results were an influential coup for the Entente, who had up until then made little advances on the western front. Though for, the Germans, and the Kaiser specifically, had given up after the last failed offensive in France and the resumption of hostilities against the Russian Provisional Government. The Kaiser would abdicate on August 23rd, and the new German Republic would sign the Armistice on September 30th, 1916.
For the United States, the official armistice of the Great War would be soon followed by the election of 1916, resulting in Woodrow Wilson became the first Democratic President since Grover Cleveland in the 1890s. Wilson ran on a campaign of intentional integration and elevation of the United States to a global power that could police global conflict from erupting in future world wars. His "14-Points" plan won admiration from domestic and abroad as to end the global woes of Empires and Conquest by settling new states along their linguistic and ethnic lines. A Polish states would emerge between Russia and Germany, with the former Austria-Hungary and Ottoman Empires divided up by their ethnic kin. While Wilson was preoccupied with creating the League of Nations, he allowed France and Britain to cast vindictive punishments against Germany with massive reparations of 80 Billion in Gold Marks along with massive territorial shifts, military restrictions, and military occupation of the Rhineland. The German Army would be restricted to 200,000 men, artillery no greater than 155mm, and no more than 600 aircraft; the German Navy would be allowed to retain their remaining capital ships though not replace them for another 20 years. After being sworn as President, Wilson would campaign to further expand the Navy to match the Royal Navy's tonnage and maintain a 2-1 advantage over the ever antagonist Japanese. Wilson's first act as President would enact the 1917 Naval Law funding 6 additional Battleships on top of the Colorado's and 9 new battlecruisers built off lessons from the North Sea. Wilson would also enact the Bureau of Veterans Administration to integrate the expanded military and demobilize the population as soldiers returned from Europe. However, differing in ideologies, President Wilson asked Teddy Roosevelt to oversee the formation of such a department. The Niagara Class Battlecruiser, much like the British Admiral Class, would be based on the lessons from the North Sea. The Niagara would be a stop-gap and preview of what was to come from American naval designers. The Niagara's would be an expanded Constitution in both beam and length to fit three three-gun 16"/45 turrets in place of the twin-gun turrets; speed would increase to 30 knots. The three-gun turret would be a prototype of what was to come with future battleship and battlecruiser designs. A total of four ships would be planned, with two laid down in 1917 and 1918. A secondary battery would consist of four twin 6"/53 turrets and four 3"/50 AA guns with no torpedo tubes. Wilson would also call for new battleships past the Colorado's and new battlecruisers past the Niagara's. The South Dakota class would be an expanded Colorado with 12 16" guns, though with the new 16"/50 gun which had greater penetration and range; with four, three-gun turrets, the South Dakota's would have had the heaviest broadside until the Arizona Class. The secondary armament would have been 16 6"/53 in eight dual turrets with four on either side and no torpedo tubes. The South Dakota's would have had a top speed of 25 knots with sixteen boilers and four shafts; the ships would be 800ft long and 106ft wide, barely fitting into the Panama Canal. The battlecruiser companion would be the Ranger Class with 9 16"/50 guns and a top speed of 33 knots. The Ranger's were a response to the Japanese Amagi and British G3 class of 16" battlecruisers. All three post-war battlecruisers would feature the American-derived "all or nothing" armor, 16" guns, and speed above 30 knots; they would also have dedicated hangers for seaplane spotters. For the Americans, Both South Dakota and Ranger classes would be laid down starting in 1919, with two of each laid down per year.
Despite Congress passing the Treaty of Versailles and joining the League of Nations, the Wilson administration continued participating the global naval race. While Europe emerged from the ashes, Japan and the United States emerged in a prime position to build the most advanced battleships. The Great War further deepened the Anglo-Japanese Treaty, with the two navies co-developing the Hercules/Nagato Class of 16” battleships as a response to joint Mexican/American Colorado Class. The US and Mexico would reply with the South Dakota and Ranger classes, as well as completing the 12” ships modernizations. The competing “tit for tat” annual lay downs had become economically untenable for even the United States by 1920 with Wilson inviting all major parties to Washington to end the arms race for good. President Wilson's naval disarmament treaty was the first of several disarmament treaties enacted by the League of Nations to reduce conflict following the Great War. Wilson was partially successful with the passage of the Washington Naval Treaty of February 1921, before his successor Warren Harding entered office as the 29th President. The Washington Naval Treaty would cap capital ship tonnage at 875,000 tons for the United States, Japan receiving 525,000 tons, and France, Italy, and Mexico receiving 300,000 tons. Germany, Greece, Brazil, the Philippines, China, Argentina, and Chile received 100,000 tons of capital ship tonnage. The British Empire received particular attention, with Australia receiving 100,000 tons, Canada receiving 300,000 tons, and Great Britain with the remaining colonies lumped into 650,000 tons for a total of 1,050,000 tons. Furthermore, future battleship construction was limited to 35,000 tons, and 16"guns. Cruisers were limited to 10,000 tons and 8" guns though without limitations; some allotment was allowed for capital ships conversions into aircraft carriers and an eventual building holiday of 15 years. For the United States, dramatic change in tonnage forced the cancellation of all six South Dakota's and two Niagara classes and the retirement of all pre-dreadnought classes. Significant negations resulted in the conversion of four Ranger class battlecruisers into Lexington class aircraft carriers and the four Japanese Amagi and British G3s reaching similar fates. The Japanese were allowed to lay down their two Tosa class battleships. The British could afford four Nelson class fast battleships under the Grandfather clause to match the USN.