Related time notes
- Rise of the Frigate Navies: Why so many nations are going Frigate and why others want them as well!2:05:20From ASDIC escorts to uncrewed submarine-hunting groupsChapter
- Soviet Destroyers of the 1930s: Trying to Rebuild/Build a navy in the face of heart led shipyards...18:09Leningrad's speed, sensors and limited cruising enduranceNotable Point
- What the unbuilt destroyers of the Regia Marina tell us about WWII?37:18Judging first-generation radar on its own termsNotable Point
- Bruships 257: Alternate History & Naval History Questions Answered Live...1:04:13A Chinese submarine success could redirect Japanese ASW researchQ&A
- Bruships 257: Alternate History & Naval History Questions Answered Live...1:08:13World War I losses shaped British cruiser ASWNotable Point
- HMS Walker: A Reliable Warrior in Two World Wars46:15Asdic contact and coordinated depth-charge attacksNotable Point
- WWI delayed by six years? What would the Navies look like? (Patreon Alternate History)2:55:50The Type XXI faced a 1945 anti-submarine systemQ&A
- WWI delayed by six years? What would the Navies look like? (Patreon Alternate History)3:31:02Could hydrophones and ASDIC mature without the war?Q&A
- Bruships 247: Science Fiction & Naval History Questions Answered Live...2:38:46Why the sabotage counterfactual selects British ASDICQ&A
- How Ship Design is a reflection of Navy's attempts to balance technology, strategy and memory...0:52Why British cruisers carried ASDICNotable Point
- Bruships 231: Alternate History & Naval History Questions Answered Live...1:44:26What capital-ship hydrophones and ASDIC achievedQ&A
- Harnessing and Maintaining Thoughtful Aggression! Royal Navy Destroyers of the Interwar Years...56:04Alphabet classes grow around the torpedo attackChapter
- Harnessing and Maintaining Thoughtful Aggression! Royal Navy Destroyers of the Interwar Years...1:07:34I-class destroyers add endurance and supporting weaponsNotable Point
- Why the different major navies used Cruiser Aviation in the 1920s&30s...1:10:20Submarine shock shapes British cruiser cautionNotable Point
- Bruships 222: Naval History Questions Answered Live...10:40British stockpiles in 1937: pom-poms, ASDIC, armor and radarQ&A
- 36hrs Live Historiophon 2025: P9 of 9 - A Movie Star in the Making: HMS Portchester Castle44:36Using foreknowledge to accelerate ASDIC, convoys, and escortsQ&A
- 36hrs Live Historiophon 2025: P6 of 9 - The Royal Navy’s Submarine Killers – Black Swans at War8:05:17How ASDIC reshaped anti-submarine shipsChapter
- 36hrs Live Historiophon 2025: P6 of 9 - The Royal Navy’s Submarine Killers – Black Swans at War8:05:49When did active underwater sound research begin?Q&A
- Historiophon 2025: part 2 of 9 - Friends of HMCS Haida11:05:37How wartime experience changed fears of air and submarine attackQ&A
- Procuring for Peace First Draft1:02:01Sloops turned ASW experiments into Flower-class requirementsChapter
- Darings to Countys... and beyond; How Royal Navy Fleet Destroyer design evolved in the Missile Age32:04Falklands combat exposed the limits of missile exercisesNotable Point
- What the Royal Navy thought of Coral Sea, Midway and Leyte Gulf?51:14Why the Royal Navy invested in night shadowingNotable Point
- Didos, Atlantas & Conversions: Which were the true Screening, Scouting or AA Cruisers of WWII?29:13Why Didos carried ASDIC without becoming submarine huntersNotable Point
- Bruships 184: Naval History Questions Answered Live...14:08Why interwar anti-submarine development appeared slowQ&A
- Bruships 180: Naval History Questions Answered...Part II47:24Royal Navy anti-submarine preparation between the warsQ&A
- Bruships 176: Christyear or Newmas?1:22:05Why more interwar ASDIC money alone was not enoughQ&A
- Frigating in WWII for the Allies: HMAS Diamantina & the River Class Frigates3:15Diamantina's stable hull and ASDIC dome in dry dockChapter
- Frigating in WWII for the Allies: HMAS Diamantina & the River Class Frigates41:21Command, sensors, and the open bridgeChapter
- Anti Submarine Warfare, a primer history & overview2:24:13Who invented ASDIC?Q&A
- Built in Australia: HMAS Castlemaine & the Bathurst Class Corvettes9:29ASDIC and production capacity set the corvette's size limitsNotable Point
- Built in Australia: HMAS Castlemaine & the Bathurst Class Corvettes27:19Deloraine and supporting escorts hunted I-124Notable Point
- Built in Australia: HMAS Castlemaine & the Bathurst Class Corvettes1:05:33Submarine alerts complicated towing and boiler maintenanceNotable Point
- Built in Australia: HMAS Castlemaine & the Bathurst Class Corvettes1:07:44Castlemaine's convoy routine demanded endurance and alertnessChapter
- Essay Competion, UAD ship design & Questions: Third 9 of the 36hr Historiophon Part 3/47:00:27British submarine priorities and the missed value of snorkelsNotable Point
- Questions, Flower Class & the Essay Competition: First 9 of the 36hr Historiophon Part 1/43:51:46How Flowers gained weapons, sensors, and endurance during the warChapter
- Bruships 167: Tell me why, everything turned book – packing up, stacking up is all kalax want to do.2:40:08How NATO standardization reshaped naval terminologyQ&A
- Royal Navy Submarines vs Axis Warships: WWII in every theatre, Patreon Premier46:23Treaty submarine parity and confidence in ASDICNotable Point
- Check Campaign 24: UAD has updated & to Learn it's new ways I started another British Campaign2:12:01The First World War origins of towed sonarNotable Point
- Lexington Class: The First Modern Carriers?58:03Aviation fuel exposes a carrier survivability problemNotable Point
- Patreon 95: Helios on Route- A lucky development of helicopters & appropriate tech in 1930s1:32:23An ASDIC escort holds contact while helicopters attackNotable Point
- Bruships(New Years Eve): Naval History Questions answered till the Bru runs out!2:52:29Japanese escorts in the Battle of the AtlanticQ&A
- What Happens If Whittle is supported & Britain develops Jet Engines + Gas Turbines in 1930s1:20:03Early radar changes carrier and submarine warfareNotable Point
- 'S' Class Submarines: The Royal Navy's All Rounders for WWII - Key Ship Series 7 Ship 722:30ASDIC managed the submarine threat rather than eliminating itNotable Point
- Acacia Class: Batch 1 of World War I's Flower Class - Key Ships Series 7, Ship 240:12A practical ASDic modernization caseNotable Point
- Acacia Class: Batch 1 of World War I's Flower Class - Key Ships Series 7, Ship 243:33What six extra sloops might have changed in 1939Notable Point
- WWII if Norway Wins & Operation Weserübung Fails...56:36U-boat endurance makes the North Sea a strategic choke pointChapter
- Why WWII evolved Motor Torpedo Boats in Motor Gun Boats: European & Mediteranean theatres42:43Fairmile A: an anti-submarine starting pointChapter
- Why WWII evolved Motor Torpedo Boats in Motor Gun Boats: European & Mediteranean theatres47:43Fairmile B improvised armament and submarine huntingChapter
- Some Myths of the Royal Navy in WWII & Treaty Years40:50Courageous and the danger of exercise biasNotable Point
- HMS Ark Royal(1937): Key Ships Series 3, Ship 931:30The risk of using fleet carriers as submarine huntersNotable Point
- Western Approaches Tactical Unit(WATU)46:26The Beta search shapes a U-boat's escapeNotable Point
- HMS Cossack: Key Ships Series 3, Ship 1...special edition...46:37Cossack's loss and the destroyer's vulnerable routine missionNotable Point
- Ship-Shape Special: Alex & Garius Command a Carrier... How bad can this be?2:00:06Why night carrier operations took time to learnQ&A
- The Submarine Century? How Submarines evolved over the 20th Century54:30Convoys, ASDIC, and the real objective of anti-submarine warfareNotable Point
- The Submarine Century? How Submarines evolved over the 20th Century56:21Interwar boats: endurance, radio, and fleet coordinationChapter
- Patreon 73: Queen Elizabeth class battleships - Brave first step, faltering leap or something else?2:03:55Why an early German submarine turn would be dangerousNotable Point
- Patreon 72: If Jan 1939 Tsingtao incident leads to war, how does RN carrier force fair against IJN?2:19:11The Royal Navy answer to Japanese submarinesQ&A
- Dragonfly Class and other Gunboats Service in WWII1:23:22How sloop orders could strengthen the naval industrial baseNotable Point
- Dragonfly Class and other Gunboats Service in WWII2:21:10Could night gunboats deter coastal submarines?Q&A
- USS Wichita: Comment Response3:58Cruiser sonar and ASW role debateChapter
- USS Wichita: Comment Response14:27Royal Navy pink lists and cruiser readiness codesNotable Point
- HMCS Haida & The Tribal Class: Always Service57:18Tribal ASW loadouts and the limits of official figuresNotable Point
- HMCS Haida & The Tribal Class: Always Service1:08:38How Haida turned ASDIC contacts into ASW attacksNotable Point
- HMCS Sackville & The Flower Class1:11:11Four-inch gun, Hedgehog, and depth-charge patternsChapter
- HMCS Sackville & The Flower Class1:13:47How Hedgehog let one escort keep attacking a submarineNotable Point
- HMCS Sackville & The Flower Class1:19:52From lanyard charges to K-gun attack patternsNotable Point
- HMCS Sackville & The Flower Class1:43:00How ASDIC and Type 271 divided the submarine searchChapter
- HMCS Sackville & The Flower Class1:43:00Steering, blackout, and quiet ASDIC work in the wheelhouseNotable Point
- HMCS Sackville & The Flower Class1:44:10How ASDIC sets developed around ships and weaponsNotable Point
- Cressy(1899) Class: Famous for the Wrong Things - 19th Century Cruisers Series 2 Part 121:25:54Civilian rescue and the anti-submarine gap after U-9Notable Point
- Bruships 89: New Books (Christmas Recomendations) & Personal Accounts of War1:36:58Defending fleets and ports against Kaiten submarinesQ&A
- Escort Carriers, the idea, designs, development and some notable operations1:41Why trade-protection carriers stalled before the warChapter
- Escort Carriers, the idea, designs, development and some notable operations23:19Escort carriers anchor the Royal Navy's late-war ASW systemChapter
- Patreon 63: Escort carriers, the idea, designs, development and notable operations24:51Why merely forcing a U-boat to dive matteredChapter
- Major Axis Navies: Five Problems & How to Fix them in January 194214:10Escort production and crew survival defeated U-boat qualityChapter
- Equitable Naval Treaties Discussion (Live)1:29:51Why interwar sloops could still take wartime sensorsNotable Point
- Equitable London Treaty: Summary (Long Patrol)1:00:01The missed opportunity to mass-produce treaty-exempt sloopsChapter
- Equitable London Treaty: Summary (Long Patrol)1:05:00How escort mass could disrupt U-boat learningNotable Point
- Equitable London Treaties: Submarines & Fortifications (Long Patrol)0:52Submarines as sea-denial insuranceChapter
- Equitable London Treaty: Sloops & Other Ships (Long Patrol)7:13Unlimited sloops for anti-submarine warfareChapter
- Equitable London Treaty: Sloops & Other Ships (Long Patrol)28:47More patrol craft at Scapa FlowNotable Point
- Equitable London Treaty: Sloops & Other Ships (Long Patrol)33:17ASW needs hulls for contact and attackChapter
- Equitable London Treaty: Destroyers (Long Patrol)28:40Modern destroyer missions demanded more displacementChapter
- Finnish War 1808-9 (214th Anniversary of the Battle of Kuopio)2:47:03Small-warship production builds industrial depthNotable Point
- Finnish War 1808-9 (214th Anniversary of the Battle of Kuopio)2:47:56When ASDIC exercises met a different warQ&A
- Finnish War 1808-9 (214th Anniversary of the Battle of Kuopio)2:54:13Was ASDIC fitted for but not with?Q&A
- 1939 Destroyer Doctrine: Patreon 50 (Long Patrol)33:17Match destroyer weapons to the threatNotable Point
- Patreon 50: 1939 Destroyer Doctrine of the combatant navies & Where did it come from?3:16:56How prepared were U.S. destroyers for U-boats?Q&A
- Patreon 48: Anglo-Japanese War in Feb 39 - if Tsingtao Incident goes "hot", what's IJN doctrine?3:09:28Would Germany reach the Type XXI before war in Europe?Q&A
- Bruships 73: Some Old, Some New, None Borrowed, but Some Blue3:24:39Knight of the North Atlantic reconstructs U-402's patrol warChapter
- Bruships 67: Cruising on through with Questions & Bru1:04:18Why peacetime ASDIC trials had limitsQ&A
- Bruships 67: Cruising on through with Questions & Bru1:12:06How Hedgehog changes an ASDIC attackQ&A
- ASW and Submarine Warfare in the Inter-War Royal Navy: 1920s & 1930s (Long Patrol)0:58Why ASW cannot be reduced to ASDIC and depth chargesChapter
- ASW and Submarine Warfare in the Inter-War Royal Navy: 1920s & 1930s (Long Patrol)20:12How ASDIC found a submerged submarineChapter
- ASW and Submarine Warfare in the Inter-War Royal Navy: 1920s & 1930s (Long Patrol)21:47Why ASDIC struggled at high speed and in heavy weatherNotable Point
- ASW and Submarine Warfare in the Inter-War Royal Navy: 1920s & 1930s (Long Patrol)22:19ASDIC was an evolving family of interwar systemsNotable Point
- ASW and Submarine Warfare in the Inter-War Royal Navy: 1920s & 1930s (Long Patrol)31:29Mediterranean exercises gave ASDIC unusually good conditionsNotable Point
- ASW and Submarine Warfare in the Inter-War Royal Navy: 1920s & 1930s (Long Patrol)41:48Every ASDIC improvement invited a submarine countermeasureNotable Point
- ASW and Submarine Warfare in the Inter-War Royal Navy: 1920s & 1930s (Long Patrol)42:37Why one escort could not easily destroy a submarineNotable Point
- Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars52:31Active ASDIC displaced passive listening during the 1920sQ&A
- Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars1:17:30ASDIC found range and bearing, not certaintyChapter
- Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars1:24:11Forward-thrown weapons aimed to free an escortChapter
- Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars1:39:19How an escort's own weapons could damage ASDICQ&A
- Patreon 34: Inter-war Naval Aircraft Development - what could have been?1:48:25Mercantilism, industrial capacity, and Japan's convoy weaknessNotable Point
- Patreon 32: Japanese heavy cruisers of the 1920s & 1930s, were they worth it?1:12:59Japanese cruisers and the limits of anti-submarine workQ&A
- Battle of the Atlantic (Original): Comment Response31:39Pre-war preparation did not remove ASDIC's limitsQ&A
- Battle of the Atlantic (Original): Crackpot Schemes or Good Ideas Badly Done p7/72:39Escort orders and the 1938 answerNotable Point
- Battle of the Atlantic (Original): Crackpot Schemes or Good Ideas Badly Done p7/718:04ASW weapons and institutional learningNotable Point
- Battle of the Atlantic (Redo): Crackpot Schemes or Good Ideas Badly Done p7/71:27Dönitz's 300-submarine force calculationChapter
- Battle of the Atlantic (Redo): Crackpot Schemes or Good Ideas Badly Done p7/76:55Escorts outbuild submarinesChapter
- Bruships 34: Random History2:35:27Operating ASDIC and Squid aboard Dumbarton CastleNotable Point
- 2 Minutes: HMS Rutherford1:45A radar-equipped command ship for motor torpedo boatsNotable Point
- Battle of Atlantic: An Introduction to The Convoy war & the Perfect Storm of PQ17… P1/310:53From ramming to ASDIC and depth-charge attacksChapter
- Tsingtao 1939: WWII but in January & against Japan - P5a Introduction to Patreon Video 49:26Peacetime procurement and a balanced fleetChapter
- Tsingtao 1939: WWII but in January & against Japan - P2b Introduction to Patreon Video 448:10Submarine ambushes before the fleet battleNotable Point
- P2 Introduction to Pre-Tribal Class Destroyers of the RN11:12ASDIC changes hidden by a stable type labelNotable Point
- P1 Introduction to Pre-Tribal Class Destroyers of the RN (special guest; Fluffy Research Assistant)9:05HMS Amazon and the prototype leader ideaChapter
- P1 Introduction to Pre-Tribal Class Destroyers of the RN (special guest; Fluffy Research Assistant)16:22HMS Keith and the B-class size dilemmaNotable Point
- P1 Introduction to Pre-Tribal Class Destroyers of the RN (special guest; Fluffy Research Assistant)20:06The C-class and the cost of cutting a flotillaNotable Point
- An Introduction to Ships of the Convoy War; the Battle of Atlantic in Steel Part 4 Escort Destroyers6:43Numbers, experience, and new ASW weaponsNotable Point
- An Introduction to Ships of the Convoy War - the Battle of Atlantic in Steel Part 1 Corvettes...6:13ASDIC, depth charges, and the convoy missionChapter
- Minesweepers, Torpedo Boats & Gunboats – the ‘Littleships’ of the big war13:55The Basset class as an economical convoy defenderChapter
- Minesweepers, Torpedo Boats & Gunboats – the ‘Littleships’ of the big war16:16The Basset class as a risk-fleet escortNotable Point
- Bru Ships Episode 2b: Book Reviews/Q&A20:25ASDIC and sonar terminologyQ&A
- Bru Ships Episode 2a: Book Reviews/Q&A1:25:14How ASDIC spread across interwar naviesQ&A
- Exercises & War Gaming Rules in 19291:10:58OC opened a wider problem of air-ASW cooperationNotable Point