Complete directory
Explore every watch point in reverse video-date order, then in timestamp order within each video.
Commercial versus naval construction involved machinery, steel strength, and subdivision rather than a label alone.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Large overseas yards required skilled labour, capital, political support, and a sustained order book beyond the Royal Navy's direct control.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Commercial-style trawlers were less capable than purpose-built escorts but could be produced rapidly in great numbers for coastal duties.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Helicopters extend the search, but shipboard sensors and combat systems remain important parts of the ASW network.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Overseas industrial development is linked to Britain's longer transition from empire to Commonwealth, with an explicit rejection of a benevolent-empire reading.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Britain placed hydrophones on the seabed at selected locations, but their capability was far short of the later SOSUS network.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
The Hunt class added speed to the escort role, allowing it to pursue contacts away from a convoy and regain station.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Numerous small escorts acted like a skirmish line, finding or triggering submarine attacks before they reached the main force.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
The Admiralty could subsidize military-standard trawlers before war, but doing so competed directly with other naval spending.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
The London Naval Treaty constrained the Tribal design, but actual displacement figures and an unconstrained alternative complicate a simple 1,850-ton description.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
A rough thirds model turns twenty-two submarine hulls into about seven boats forward, seven moving or preparing, and seven in refit.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Interwar exercises generated real ASW knowledge, but conditions and assumptions could produce misleading confidence.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Rear Admirals Submarines and Destroyers gave both sides of the undersea contest senior advocates, including Andrew Cunningham and Hugh Sinclair.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Joint ASW work was routine: destroyer flotillas combined daily and weekly drills with regular exercises against nearby submarine units.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Large Royal Navy exercises could incorporate Australian, Canadian, and other Commonwealth forces without extending the same access to France.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
The Navy considered sloop-borne floatplanes but could obtain aviation support from carriers and cruisers after learning from First World War monitor experiments.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Designing submarines and ASW systems means anticipating an opponent's future technology and tactics before either is tested in war.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
The distance from the Falklands War leaves much contemporary ASW practice grounded in exercises and theory rather than peer combat.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Official depth-charge allowances understated the loads some sloops, destroyers, and corvettes actually carried during sustained submarine hunts.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Argentina fielded a submarine threat during the Falklands War, but one boat was caught on the surface at South Georgia before it could press an attack.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
New submarine technology cannot be judged by simulation alone when the model may inherit assumptions from the exercises it is meant to test.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
The Nelsons did not meet the speed definition as built, although a hypothetical late-1930s boiler upgrade might have raised their speed.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
Black Swan-class sloops and some Flower-class corvettes produced British equivalents to the USS England's concentrated submarine-killing record.
From Patreon 41: RN Strategic & Tactical thinking on submarines & anti-submarine forces between the Wars ·
An introduction to the beacon systems that gave Fleet Air Arm aircraft a way to find a carrier after dark or far out at sea.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
The early Type 72X appears on a carrier in 1936 and becomes the starting point for the wartime beacon family.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
A one-revolution-per-minute beam and a synchronized watch give an aircraft a reciprocal bearing on its carrier from roughly fifty miles away.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
The beacon evolved as more carriers operated together and radar demanded the highest position on the mast.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
The Type 72X and 72DM assumed a trained observer or telegraphist air gunner could interpret the signal, an arrangement poorly suited to a busy single-seat fighter pilot.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
Early-war views of HMS Ark Royal and HMS Illustrious make the beacon's move from the masthead to a lower position immediately visible.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
The principal engineering paper explains the mature Type 72DP first and treats earlier systems in relation to it, forcing historians to reconstruct the development sequence carefully.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
A modest transmitter, rotating reflector, precision timing controls, and a lightweight masthead hut made the Type 72X function as a radio lighthouse.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
The Type 72DM could synchronize its sweep through north at the minute, making the bearing easier to turn into a course home.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
The Type 72DP modulated its carrier wave with information characteristic of each true bearing and stabilized the rotating aerial against changes in the ship's course.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
The later DP system shifted more work to the ship so a pilot, especially in a single-seat aircraft, could receive a simpler homing indication.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
A visual course display could make beacon guidance continuously available, while the broadcast system could guide many aircraft from different directions at once.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
The January 1947 paper, revised in June, mixes wartime Type 72DP evidence with YE material and discussion of systems still ahead.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
Precision Fleet Air Arm watches were an essential, easily overlooked part of the earlier beacon method.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
American beacon equipment entered Royal Navy service in the Pacific and was later succeeded by the allied TACAN system.
From Beacons; Finding Home When Alone Over The Ocean (Long Patrol) ·
'Jammy' means improbably lucky, the naval expression used to frame Challenger's extraordinary scientific success.
The Challenger Expedition's scientific remit gave a small Royal Navy corvette a worldwide survey that transformed knowledge of the deep ocean.
Challenger carried a specialist scientific artist and a photographic room at a time when expeditions relied on both methods to document specimens.
The expedition's deep-sea research also produced the seabed knowledge needed for long submarine cables.
Challenger's roughly 68,000-mile voyage gathered measurements that connected surface-water density to temperature, currents, and ocean composition.
A brief historiographic aside distinguishes discovering an inhabited place from finding a new route, before identifying Challenger's survey as an unambiguous first.
The expedition is presented as an unprecedented worldwide survey, carried out from a surprisingly small Pearl-class corvette.
Cost, crew demands, and a low-profile naval presence made a corvette more practical than a converted cruiser for Challenger's mission.
HMS Challenger combined steam, sail, scientific fittings, and two retained guns after most of its normal armament was removed.
Ship plans reveal how a sturdy corvette allotted deck and hold space to an unusually ambitious scientific programme.