Video
Patreon 55: History of Survey Ships in the Royal Navy
Study Patreon 55: History of Survey Ships in the Royal Navy, a Dr. Alex Clarke video from 29 May 2022, with 64 time notes. Topics include Anti-Submarine Warfare, Hydrography, Maritime Trade.
Time notes
- 11:09QuestionWill navies field a cruise-missile and torpedo hybrid for attacking submarines, ships, or shore targets?AnswerQ&A
The idea has been tested, but uncertain long-range submarine targeting and inefficient payload tradeoffs have kept it from becoming a broadly useful weapon.
- 12:31QuestionWhat was the best ship designed under Sir William Henry White?AnswerQ&A
The Royal Sovereigns were his most important class, while HMS Renown was the favorite individual ship.
- 16:28QuestionWas placing HMS Echo in mothballs or low readiness a sensible decision?AnswerQ&A
No. An already small survey force could not readily spare such a flexible and recently active ship.
- 18:30Why survey ships matter to trade and naval operationsChapter
Hydrographic ships turn ocean measurements into charts used by merchant shipping, surface fleets, and submarines.
- 23:16QuestionDid the ships used for Britain's 1946 Antarctic expedition count as survey ships?AnswerQ&A
No: they performed survey work, but their primary role was expeditionary rather than dedicated hydrography.
- 25:21QuestionWhere does RRS Sir David Attenborough fit in relation to survey ships?AnswerQ&A
She is a civilian British Antarctic Survey research vessel that can perform surveys, not a Royal Navy hydrographic ship.
- 25:55QuestionDoes the Royal Navy share its charts with other countries and commercial mariners?AnswerQ&A
Yes: the Hydrographic Office sells charts internationally, while sensitive survey information can remain classified.
- 27:35From lead lines to multibeam sonarChapter
A technology comparison shows how sonar changed seabed surveys from isolated soundings into wide-area maps.
- 30:49Undersea cables make hydrography part of grey-zone securityNotable Point
Surveying cable routes protects the high-capacity links that carry international communications and expose fragile infrastructure to interference.
- 35:25Undersea cables turn microseconds into financial advantageNotable Point
Arbitrage trading shows why cable routes and latency make seabed infrastructure economically strategic as well as technically important.
- 38:20Why a cable beneath the Channel may still count as land cableNotable Point
A cable can run beneath the sea while remaining a land installation in technical terms because it passes through a dry tunnel.
- 44:23How Admiralty hydrography became an institutionChapter
A chronology traces Admiralty charts, sailing directions, tide tables, notices to mariners, and international hydrographic cooperation.
- 53:42QuestionWhat sources are useful for studying Royal Navy survey ships and hydrography?AnswerQ&A
Start with official Royal Navy material and the cited online chronology, then use the specialist histories by Roger Morris and G. S. Ritchie for deeper study.
- 58:15Why British charts could outperform France's own coastal mapsNotable Point
Superior charts of an enemy coast can reflect the sustained access created by blockade and command of nearby waters.
- 58:54QuestionDoes the Royal Navy survey riverbeds and other inland waters?AnswerQ&A
Naval vessels work as far inland as access permits, then civilian Hydrographic Office teams and launches cover the shallower reaches.
- 59:43QuestionIs there a good book on British paper warships of the interwar period?AnswerQ&A
No satisfactory single volume was available, which is why a broader joint study with Drachinifel had been considered.
- 1:00:32HMS Merlin and Britain's first dedicated coastal surveyChapter
The tiny warship HMS Merlin links a diplomatic pretext for war with Grenville Collins's landmark survey of Britain's coast.
- 1:06:22QuestionWere the early coastal surveys part of Samuel Pepys's reforms of Royal Navy navigation?AnswerQ&A
Yes: Pepys pushed the work and its funding because inaccurate charts were causing avoidable ship losses.
- 1:09:15QuestionHave you trained with old navigation tools and charts, and could you teach viewers how to use them?AnswerQ&A
Yes, but a worthwhile lesson should be demonstrated aboard a boat, ideally with a more expert navigator leading the practical work.
- 1:13:36HMS Hecate's surveys from British Columbia to Torres StraitChapter
A former paddle sloop moved from anti-slavery duty into Pacific and Australian survey work with remarkably long-lived results.
- 1:16:23QuestionAre ship ice-class ratings sometimes conservative compared with what the hull can physically survive?AnswerQ&A
Yes: a safety margin protects the ship and insurer, while operating beyond the rating can place the resulting risk on the owner.
- 1:17:23QuestionWhy would HMS Hecate sink a slave-trading brigantine instead of taking it as a prize?AnswerQ&A
A captured ship created prize-court and diplomatic complications, while a vessel sunk during enforcement could be politically easier to resolve.
- 1:18:44HMS Challenger as survey ship, escort, and test bedChapter
The 1931 Challenger combined worldwide survey work with convoy duty and lessons relevant to merchant-hull escorts.
- 1:24:22QuestionWhat does a standard naval refit include?AnswerQ&A
It is a broad inspection, repair, renewal, repainting, and modernization package that can amount to an overhaul of most of the ship.
- 1:25:24QuestionDid using merchant-style hulls for survey ships help the Royal Navy develop the Flower-class corvette?AnswerQ&A
Yes. Survey and trial vessels provided relevant hull experience while the Royal Navy developed its small anti-submarine-warship program.
- 1:28:31The first HMS Protector: from net layer to Antarctic patrol shipChapter
A wartime net layer became the Royal Navy's first dedicated Antarctic patrol vessel and gained a two-helicopter aviation capability.
- 1:29:32QuestionWhich twenty or twenty-one historical vessels would you combine into a strike force?AnswerQ&A
For a general-purpose force, the proposed core is Implacable-class carriers and Iowa-class battleships, supported by Atlanta-class cruisers and Battle-class destroyers.
- 1:32:47QuestionWhich Third Sea Lords most influenced Royal Navy preparation for the two world wars?AnswerQ&A
Jellicoe was central before the First World War, while Henderson's work, carried forward by Fraser and Goodall, shaped the run-up to the Second.
- 1:33:52QuestionCan satellites replace hydrographic ships or directly track submarines?AnswerQ&A
Not directly: satellites may reveal anomalies and narrow a search, but accurate seabed and water-column data plus local ASW investigation remain necessary.
- 1:35:22QuestionWhich Royal Navy survey ship was the most influential?AnswerQ&A
HMS Merlin, because her work with Grenville Collins established processes that later Royal Navy survey ships followed.
- 1:39:56QuestionWould a submarine or long-endurance UUV make a good survey ship?AnswerQ&A
UUVs are valuable auxiliaries, but a surface mothership is better suited to coordinate communications, processing, and a mixed family of sensors.
- 1:41:10QuestionDid early nuclear attack submarines conduct extensive hydrographic surveying under Arctic ice?AnswerQ&A
Not freely: using active sonar would reveal them, so separate ice-survey teams and scientific measurements remained important.
- 1:45:26HMS Vidal, Rockall, and strategic maritime presenceChapter
Vidal's survey of Rockall shows how hydrography, sovereignty, missile testing, and Cold War presence could overlap.
- 1:52:58The 1959 HMS Enterprise on rivers, coasts, and the North SeaChapter
A 163-ton Echo-class vessel shows how very small survey ships could work from the English Channel to inland European waterways.
- 1:53:42QuestionWould nuclear ASROC be justified rather than risk letting a Russian submarine escape?AnswerQ&A
No: uncertain contacts demand better classification and precise conventional weapons, especially when Russian SSBNs are likely to remain inside defended bastions.
- 1:59:06HMS Endurance and the cost of withdrawing presenceChapter
Endurance demonstrates the deterrent value of routine presence and the wartime utility of a polar survey ship.
- 2:02:33QuestionCan a modern ballistic-missile submarine surface-launch its missiles and then submerge safely?AnswerQ&A
Not as a routine option: modern systems are designed for submerged ejection, and a surface launch could fail or damage the submarine badly enough to prevent submergence.
- 2:08:03QuestionWhy did the Alfonso-class cruisers use twin six-inch shielded mounts instead of turrets?AnswerQ&A
The shields saved weight and concentrated useful splinter protection toward the enemy instead of enclosing the crew in a very thin turret.
- 2:10:58HMS Beagle and the move to onboard survey processingChapter
Beagle's refit illustrates the shift toward modern onboard information processing and specialized survey launches.
- 2:16:19HMS Herald as hospital ship, mine-warfare support, and rescuerChapter
Herald's service record shows how survey ships become valuable general-purpose support vessels during crises.
- 2:20:03QuestionWhy did the Royal Navy build only two Echo-class multi-role survey ships?AnswerQ&A
Cost-driven consolidation replaced work once spread across roughly ten survey and patrol vessels with only a few hulls, sacrificing geographic presence and resilience.
- 2:22:56HMS Roebuck links continental-shelf surveys to mine warfareChapter
Roebuck combined coastal and overseas survey equipment with wide-area sensor support for mine-countermeasures forces.
- 2:27:20QuestionIs mine sweeping now mostly performed by helicopters?AnswerQ&A
No: helicopters are one option, while ships, divers, uncrewed craft, and hydrographic support remain central to mine countermeasures.
- 2:29:42The later HMS Endurance and the loss of a class-one icebreakerChapter
The second Endurance paired one-metre icebreaking with two helicopter hangars before maintenance flooding ended her career.
- 2:29:59QuestionWould it be worth using force to recover USS Pueblo from North Korea?AnswerQ&A
No: the ship's symbolic value does not justify the escalation risk, and even a negotiated return could carry difficult political conditions.
- 2:30:56QuestionWhy has the wreck of IJN Shinano not been found?AnswerQ&A
A sufficiently funded search with the right ships and systems may not yet have been mounted.
- 2:35:22HMS Scott maps the deep Atlantic for submarinesChapter
Scott's multibeam sonar and rotating crews sustain the detailed deep-ocean maps needed for safe high-speed submarine transit.
- 2:39:48QuestionWas the 1870s HMS Challenger a survey ship ahead of her time?AnswerQ&A
She did survey work, but her primary role was scientific exploration, making her an expedition ship.
- 2:40:43QuestionIf Japan can build giant commercial ships, why could it not simply build a supercarrier?AnswerQ&A
Large shipyards provide capacity, but carrier-specific design and operating experience must be rebuilt gradually, probably through larger successors to the Izumo class.
- 2:42:51QuestionWould a Chinese invasion of Taiwan be a conventional amphibious operation?AnswerQ&A
It is framed more precisely as a vast shore-to-shore crossing, with some river-crossing logic and all the difficulty of an opposed maritime transit.
- 2:43:42QuestionHow can HMS Scott operate for about 300 days a year and still receive maintenance?AnswerQ&A
Three rotating crew sections and continuous upkeep sustain daily availability, while major maintenance is concentrated in occasional long refits.
- 2:46:04Echo class turns seabed data into operational supportChapter
Echo-class sensors support submarines, amphibious forces, mine warfare, chart updates, and the prevention of maritime disasters.
- 2:49:59HMS Echo from Ukraine presence to the search for MH370Chapter
Echo's deployments show how a survey ship's endurance and sensors can support diplomacy, constabulary work, and major searches.
- 2:54:19QuestionWhat is the least useful ship currently commissioned in the Royal Navy?AnswerQ&A
The fleet does not have enough ships for one to be truly dispensable, and even HMS Victory provides important non-seagoing value.
- 2:56:23What HMS Protector lost when she replaced EnduranceChapter
Protector retained polar utility but sacrificed ice capability and embarked helicopters compared with Endurance.
- 3:01:13QuestionWhy do the Albion-class amphibious ships have flight decks but no helicopter hangars?AnswerQ&A
Their hangar and support deck was deleted to save money on the assumption that a separate helicopter carrier would always accompany them.
- 3:03:50QuestionWhy did your book omit Royal Australian Navy and Royal Canadian Navy material?AnswerQ&A
Archive access was blocked, so the book was narrowed rather than substituting paraphrases of other historians' research for primary work.
- 3:05:34QuestionWould large rotary-wing UAVs still require a hangar aboard a survey or polar ship?AnswerQ&A
Yes. One hangar bay could hold several rotary-wing UAVs while the other supports a crewed helicopter.
- 3:08:25HMS Magpie surveys ports and points toward uncrewed vesselsChapter
The small catamaran checks channels for major warships while demonstrating technology relevant to larger uncrewed craft.
- 3:14:45QuestionWhat force was supposed to replace Illustrious and Ocean in the helicopter-carrier role?AnswerQ&A
A later LHD program was expected to provide two or three ships, with two likely replacing Ocean, Illustrious, Albion, and Bulwark together.
- 3:15:52QuestionShould the Royal Navy mass-produce Magpie-sized ships for mine sweeping?AnswerQ&A
A larger host ship deploying several smaller uncrewed mine-warfare craft is a more efficient force design.
- 3:16:50A future survey fleet for seabed infrastructureChapter
The closing argument favors several crew-efficient ocean-surveillance ships rather than another one-for-many replacement.
- 3:27:17QuestionWhy would a Flower-class corvette carry a pet chicken?AnswerQ&A
Chickens could consume scraps and provide fresh eggs, combining companionship with a useful supplement to preserved rations.
- 3:28:44QuestionAre modern survey ships useful for detecting devices that navies place on the seabed?AnswerQ&A
Yes. HMS Scott is especially capable and has proved useful in that role.