Video
Patreon 15 - Washington’s cherry trees: the G3 and N3 classes
Study Patreon 15 - Washington’s cherry trees: the G3 and N3 classes, a Dr. Alex Clarke video from 14 Jan 2021, with 54 time notes. Topics include Capital Ship Design, G3 Class Battlecruisers, N3 Class Battleships.
Time notes
- 1:30QuestionWhich Royal Navy captain is named as a favorite despite never becoming an admiral?AnswerQ&A
Michael Clapp, who was technically a captain because commodore was then an appointment rather than a permanent Royal Navy rank.
- 4:23Why Renown could drive off Scharnhorst and GneisenauNotable Point
The encounter is explained through German orders, the psychological effect of Renown's aggressive approach, and the risk that a few lucky hits could overturn a paper comparison.
- 5:31QuestionWhy were the G3 and N3 designs not intended to carry a Blackburn Blackburn floatplane?AnswerQ&A
Because HMS Hermes was expected to provide the spotting-aircraft support for them.
- 10:37QuestionWhat names would the G3 and N3 classes probably have received?AnswerQ&A
The evidence is inconclusive, but prominent admiral names were plausible because the Royal Navy repeatedly reused them for capital ships.
- 12:44From Dreadnought to the postwar capital-ship problemChapter
Changing hull and armor arrangements preceded the wartime experience that shaped the next British capital ships.
- 19:29QuestionWould two quadruple turrets have been better than three triple turrets?AnswerQ&A
No; triple turrets offered a more workable balance of weight, reliability, aiming, and maintainability with contemporary technology.
- 20:55QuestionHow far had British triple-turret development progressed for the N3 and G3 designs?AnswerQ&A
Britain had useful triple-mount experience, and the G3's 16-inch work directly informed the Nelson-class armament.
- 23:31Why Britain wanted more carrier tonnage but smaller individual carriersNotable Point
British treaty policy paired a high aggregate carrier allowance with low per-ship limits so the Royal Navy could spread aviation across more hulls.
- 25:34How wartime lessons pushed British designs upwardChapter
The design narrative connects Dogger Bank, Jutland, and Beatty's influence to demands for more speed, armor, and gun power.
- 29:02QuestionCould the Queen Elizabeth class have been rearmed with triple 15-inch turrets?AnswerQ&A
The turret rings made it technically possible, but ammunition storage and the scale of the conversion made the proposal difficult.
- 32:24QuestionHow might the G3 design have changed if Jellicoe remained influential and Beatty did not lead the postwar Royal Navy?AnswerQ&A
Different senior leadership would probably have produced a more conventional capital-ship layout.
- 35:35Why quadruple turrets looked better on paperNotable Point
A comparison of British and French quad mounts shows how canal limits, cramped machinery, and reliability eroded paper savings.
- 39:55QuestionDid the Royal Navy regret building the Revenge class instead of more Queen Elizabeth-class battleships?AnswerQ&A
Yes; the last two R-class orders becoming Renown and Repulse are cited as evidence of that regret.
- 43:35The Jutland report and distorted postwar lessonsNotable Point
Rewriting the official Jutland account around Beatty's reputation encouraged misleading design assumptions.
- 46:53The G3 orders halted by the Washington negotiationsChapter
Contemporary design figures show four 32-knot G3 battlecruisers ordered in 1921 before treaty negotiations stopped construction.
- 49:45Citadel layout concentrated guns, magazines, and armorChapter
The Nelson design demonstrates how triple turrets and a short armored citadel traded firing arcs for thicker protection.
- 56:51The tactical cost of an all-forward main batteryChapter
The Nelson layout protected vital spaces efficiently but restricted forward and aft fire when a battle refused to follow the expected geometry.
- 58:43QuestionDid the Royal Navy consider an updated Nelson-class layout for the ships that became the King George V class?AnswerQ&A
Not directly; later 16-inch concepts would probably have restored an aft turret rather than repeat the all-forward layout.
- 1:00:52QuestionWhy did Britain move from 15-inch to 16-inch guns instead of making a larger jump?AnswerQ&A
The 15-inch gun was proven, and increasing the bore to 16 inches still produced a substantial gain in firepower.
- 1:04:49QuestionCould turbo-electric drive have allowed the machinery and propeller motors to be separated in Nelson or G3?AnswerQ&A
It was considered, but contemporary systems could not provide enough trusted power for the required capital-ship speed.
- 1:06:00Nelson-class machinery, weapons, and armorChapter
A compact technical profile sets the Nelson class's 23-knot machinery against nine 16-inch guns and heavy concentrated armor.
- 1:08:31QuestionDid Nelson and Rodney regularly make their advertised 23 knots?AnswerQ&A
Probably not; roughly 20 knots is offered as a more realistic frequent service speed.
- 1:08:43Waterline protection limited extreme citadel economiesNotable Point
The US Navy's required armoured share of the waterline exposed a weakness in extreme citadel economies, and later British designs moved toward broader belt coverage.
- 1:09:53Why balanced firing arcs mattered in the MediterraneanNotable Point
A proposed Nelson redesign moves one turret aft to make the ship more adaptable in fast-changing Mediterranean actions.
- 1:14:08Concentrated firepower also concentrated riskNotable Point
All-forward batteries saved protected length but exposed a ship to losing much of its firepower in one damaged area.
- 1:16:04QuestionWere Nelson and Rodney mainly designs for calmer waters rather than the North Atlantic?AnswerQ&A
No; they could operate in the North Atlantic, though the G3 and N3 designs likely would have been better seakeepers.
- 1:23:24Main-battery blast disrupted Nelson's flag facilitiesNotable Point
The placement of Nelson's command spaces made the shock of firing the main battery a practical headquarters problem as well as a structural one.
- 1:25:35QuestionWhy not rearrange the G3 superstructure and citadel to save more weight?AnswerQ&A
Because moving the bridge too far aft would make ship control less satisfactory despite the structural savings.
- 1:27:33QuestionWhy did navies keep laying wooden decking when gunfire could damage it?AnswerQ&A
Because it cheaply protected the steel deck, resisted salt water, and provided a practical working and ceremonial surface.
- 1:28:39G3 speed versus N3 gun powerChapter
The two designs used nearly equal displacement for sharply different combinations of speed, armor, and gun caliber.
- 1:33:53QuestionWhy did the Royal Navy order the G3s before the N3 battleships?AnswerQ&A
The G3 design was ready first and new battlecruisers were a more urgent requirement than replacing the existing battleship force.
- 1:34:37How older battleships could still alter Japanese planning off MalayaNotable Point
A counterfactual carrier-supported Force Z uses several older battleships to show how visible fleet numbers can compel a larger enemy response.
- 1:35:37QuestionWould building more G3s have been more useful than proceeding with the N3 battleships?AnswerQ&A
Probably for many operations, though a faster N3 that retained its armor and heavy guns offered a useful compromise.
- 1:37:13QuestionWhy did Britain keep the Revenge class when the G3s would have been more useful in a modern fleet?AnswerQ&A
Treaty limits barred a simple substitution, and Britain had already given up the G3 programme before the settlement was complete.
- 1:38:30The G3's layered torpedo-defense conceptChapter
A cross-section reveals alternating air, steel, and liquid layers backed by compressed-air counter-flooding measures.
- 1:39:52A fast battleship compromised by its center turretNotable Point
The G3 combined battlecruiser speed with battleship protection, but its machinery and center-turret arrangement limited firing arcs and future use.
- 1:44:01Why North Sea evidence could distort conclusions about aft fireNotable Point
A study finding that Royal Navy ships rarely fired aft is qualified because its evidence came from the Grand Fleet's North Sea engagements.
- 1:49:28Surviving G3s could have raised the treaty battleship ceilingNotable Point
Keeping 48,000-ton G3s in service might have made their size the legal baseline for interwar capital ships and enlarged every navy's design margin.
- 1:52:22Capital-ship orders as employment and national policyChapter
Battleship procurement connected shipyard employment and public prestige with the Navy's role as the shield of empire.
- 2:02:24The N3's 18-inch guns and the escalation trapChapter
Nine 18-inch guns promised British superiority but risked setting a new baseline that rival navies would immediately exceed.
- 2:07:47QuestionWhen did the Royal Navy and United States Navy begin cooperating on warship design?AnswerQ&A
They shared technology and experience, especially during the Second World War, but did not generally adopt a common ship-design process.
- 2:12:53QuestionHow did the rate of fire of 15-inch guns compare with proposed 18- or 20-inch weapons?AnswerQ&A
Fifteen-inch guns could fire much faster, while very large calibers imposed severe shell-handling, machinery, and barrel penalties.
- 2:14:44QuestionWhen did additional gun range cease to be useful because a ship could not find or see the target?AnswerQ&A
Before radar, visibility and fire control often made the 8-inch gun's extra range less useful than the 6-inch gun's higher volume of fire.
- 2:17:17QuestionWould quadruple turrets have made a proposed sixteen-gun super-Town cruiser unreliable?AnswerQ&A
They posed difficulties, but a 6-inch quad was much more feasible than quadruple 14-, 15-, 16-, or 18-inch mounts.
- 2:20:41QuestionWhy did the Royal Navy not continue developing 16-inch guns after Nelson and Rodney?AnswerQ&A
Treasury-Admiralty funding disputes curtailed the work even though the treaties did not directly ban gun development.
- 2:23:11How G3 carrier conversions might have transformed naval aviationChapter
Treaty conversion could have produced four large, fast British carriers and established senior carrier commands a decade earlier.
- 2:27:02QuestionWhat was the M3 design sometimes mentioned alongside G3 and N3?AnswerQ&A
M3 was an earlier design iteration in the sequence that eventually produced the N3 battleship proposal.
- 2:28:20QuestionHow would the G3 and N3 designs fare against a South Dakota-class battleship?AnswerQ&A
The G3 suited a mobile fight, while the N3 became more attractive in a fleet action where armor and heavy firepower outweighed agility.
- 2:29:46QuestionCould the Washington treaty have limited batches of standard ships while easing unemployment and controlling escalation?AnswerQ&A
Possibly, but the actual negotiators did not fully develop that kind of construction-and-employment mechanism.
- 2:31:46QuestionWould a G3 carrier have been larger than the Lexington-class carriers?AnswerQ&A
It would probably have been about the same overall size, with a different British secondary and anti-aircraft battery.
- 2:33:51QuestionHow many Swordfish and other aircraft might a G3 carrier have operated?AnswerQ&A
About 72 aircraft in all, illustrated as 36 Swordfish, 18 Fulmars, and 18 Skuas.
- 2:41:29QuestionWhat value would an N3 battleship have had in the Second World War?AnswerQ&A
Broadly the same kind of value as Nelson and Rodney, but in a larger and more heavily armed form.
- 2:42:09QuestionWhere would Britain deploy its other carriers if four G3 conversions also entered service?AnswerQ&A
Older carriers would support the main fleets and overseas stations, with Hermes and Eagle likely concentrated on the China Station.
- 2:43:43QuestionWhat role would G3 battle groups have played in the Second World War?AnswerQ&A
They would likely have operated like Hood, moving around the world to intercept major enemy surface threats.