# Bringing Back the Battleship? - Railguns, US Shipbuilding and a 35,000 ton bad idea? Source: https://www.youtube.com/watch?v=qvUbx9TvOwk Recap page: https://rapidrecap.app/video/qvUbx9TvOwk Generated: 2025-12-28T15:33:35.347+00:00 --- ## Quick Overview The proposed USS Defiant (BBG-1), the first of the so-called Trump class guided missile battleships, represents a massive, technologically risky pivot for the US Navy that analysis suggests is highly inefficient compared to existing and planned destroyer classes, particularly because it replaces the planned DDGX next-generation destroyer program. **Key Points:** - The USS Defiant concept is proposed as a 35,000-ton guided missile battleship (BBG) that incorporates VLS cells, hypersonics, lasers, and a forward-mounted 32-megajoule rail gun, making it the largest US Navy surface combatant since WWII. - The design details suggest the Defiant is dimensionally close to the Iowa-class battleships (length 840-880 ft vs 860-890 ft; beam 105-115 ft vs 108 ft), but its primary firepower is missile-based, with only two 5-inch guns and the rail gun listed as secondary battery systems. - Analysis shows the Defiant is highly inefficient for missile carriage; for every missile point carried (estimated 160 points total), it requires about 219 tons of displacement, compared to 77 tons per point on the retiring Ticonderoga class cruiser (130 points). - The program is considered high-risk because it relies on immature technology, specifically the 32-megajoule rail gun, a system the US Navy previously shelved in 2021 due to challenges like barrel life and low rate of fire (aiming for 10 shots per minute, testing achieved half that). - Crucially, the announcement states the Defiant class replaces the Navy's previous plans to develop the DDGX next-generation destroyer, meaning the BBG-1 program necessitates pivoting all development resources away from that planned 15,000-ton destroyer. - Resource intensity comparisons indicate the Defiant costs roughly $9.1 billion per hull (CSIS estimate), making it 2-3 times as resource-intensive as comparison ships like three Flight 3 Arleigh Burke destroyers or two DDGX concepts, yet it carries fewer VLS cells than the combined alternatives. - The ship's proposed mission set is diffuse, incorporating amphibious support (V-22 Osprey capable), command functions, secondary nuclear weapon delivery, and extensive anti-drone defenses (lasers, rail gun), suggesting it is a multi-purpose 'luxury buy' rather than a focused peer competitor. **Context:** The video analyzes the recent announcement by the US Secretary of the Navy regarding a new class of warship, the USS Defiant (BBG-1), intended to be a guided missile battleship, marking a potential return to battleship concepts after they faded post-WWII due to the rise of carriers and missiles. This proposal comes at a time when US shipyards are already struggling to produce sufficient basic destroyers to keep pace with peer competitors, raising immediate questions about feasibility, technological risk, and resource allocation within an already overstretched shipbuilding sector. ## Detailed Analysis The analysis scrutinizes the proposed USS Defiant (BBG-1), slated to be a 35,000-ton guided missile battleship featuring a 32-megajoule rail gun, hypersonics, lasers, and 128 VLS cells. The speaker establishes that traditional battleships died because they were too crew-intensive (an Iowa class needed ~2,700 crew vs. modern destroyers), vulnerable to missiles, and economically inefficient compared to missile-centric designs like the Spruance class. While the Defiant's dimensions align with the Iowa class, its primary offensive power relies on missiles, classifying its large guns, including the rail gun, as secondary. The design's reliance on non-existent technology, particularly the 32-megajoule naval rail gun (a program previously cut by the Navy), introduces significant technological risk, potentially leading to delays or mission failure, similar to issues seen with the Zumwalt class. Economically, the Defiant is deemed inefficient; estimates place its cost around $9.1 billion per hull, and when measured by missile capacity per ton, it is far less efficient than existing Ticonderoga cruisers. Furthermore, the most critical finding is that the BBG-1 program explicitly replaces the planned DDGX next-generation destroyer, meaning the Navy is sacrificing a conventional high-capability destroyer to fund a massive, complex platform that provides comparable VLS capacity to two smaller ships but at a much higher resource cost, potentially worsening the US shipbuilding capacity deficit against China. ### Historical Context of Battleships - Big gun focus defined early designs until HMS Dreadnought standardized on all big guns; escalation peaked with Yamato (70,000 tons, 18.1in guns) and Iowa class (fast battleship role); obsolescence driven by aircraft carriers, anti-ship missiles, and high operational/crew costs. ### USS Defiant Concept Details - Designated BBG (guided missile battleship); proposed displacement of 35,000 tons; features 128 Mark 41 VLS cells, 12 Conventional Prompt Strike hypersonics, four laser dazzlers, two 300-600 kW lasers, and one 32-megajoule rail gun; propulsion relies on traditional gas turbines/diesel, not integrated electric propulsion. ### Design Status and Timeline - The vessel is currently a concept, not a detailed design, lacking the years of necessary pre-design funding seen in programs like DDGX or SSNX; construction of the first vessel is realistically expected well into the next decade. ### Technological Risks - The reliance on the 32-megajoule naval rail gun is a major gamble, given the US Navy shelved its own program after spending $500 million due to barrel life and rate-of-fire issues; success is not guaranteed, risking sunk costs. ### Resource Inefficiency Analysis - Compared to alternatives like three Arleigh Burke destroyers or two DDGX concepts, the Defiant is 2-3 times more resource-intensive (tonnage, crew, estimated cost) but does not offer a proportional increase in critical VLS cells (128 vs. 288 for three Burkes). ### Strategic Implications - The BBG-1 program explicitly cancels the DDGX next-generation destroyer development; this leaves the US relying on the Burke workhorse, a low-spec FFX (adapted Coast Guard cutter without VLS), and the battleship, creating a force structure that appears less capable ship-for-ship in the frigate tier compared to China's existing Type 54B.