Video
Hawker Aircraft of the 1920s & 1930s
Study Hawker Aircraft of the 1920s & 1930s, a Dr. Alex Clarke video from 6 May 2021, with 59 time notes. Topics include Convoy Warfare, Danish Navy, Defence Procurement.
Time notes
- 12:18Thin wings constrain cannon installation and heatingNotable Point
Thin wings can leave cannon exposed to cold even when machine guns can be kept warm enough to fire.
- 16:35Hawker and Sopwith's industrial legacy at KingstonNotable Point
Kingston University's Sopwith Building and Hawker Wing connect former aircraft-manufacturing sites with present-day engineering education.
- 30:25How Hawker rebuilt Sopwith's aviation capabilityChapter
The postwar collapse of Sopwith leads into Hawker's formation and the survival of an engineering team that remained important to British naval aviation.
- 37:33QuestionWhy did the First World War bankrupt the Sopwith company?AnswerQ&A
An excess-profits tax claim arrived at a damaging time, with losses unavailable to offset it and the Treasury rejecting Sopwith's explanation of its wartime subcontracting costs.
- 42:41QuestionDid companies that built tanks also work in the naval field?AnswerQ&A
Yes. Most of the companies that came to build tanks already had substantial connections with the Navy.
- 43:15The Duiker marks Hawker's first aircraft designNotable Point
Before the successful Woodcock, Hawker produced the swept-wing Duiker for a high-speed reconnaissance requirement but failed to secure an order.
- 47:24The Woodcock gives the new Hawker company breathing spaceNotable Point
Hawker turned the troubled Woodcock prototype into an RAF night fighter whose production order helped the young company establish itself.
- 53:27The Hedgehog as Hawker's first naval-aircraft attemptNotable Point
Hawker's three-seat Hedgehog met a fleet reconnaissance requirement but offered too little improvement over aircraft already entering service.
- 59:36QuestionWhen did Sydney Camm join Hawker, and how did he rise within the company?AnswerQ&A
He joined Hawker as a draftsman in 1923, became chief designer in 1925, and later became a director and chief engineer.
- 1:04:13Thomas Sopwith's career from pilot to Hawker chairmanNotable Point
Sopwith's early flying career preceded decades of leadership in the companies that succeeded his original aircraft business.
- 1:13:33QuestionDid the Danecock carry a radio?AnswerQ&A
Probably not, although the descriptions consulted did not settle the point. Contemporary naval radio telegraphy usually required another crew member.
- 1:15:39The Danecock takes Hawker's Woodcock into Danish naval serviceNotable Point
Denmark bought and licensed a Sydney Camm redesign of the Woodcock, equipping both an army squadron and a naval squadron with the long-serving Danecock fighter.
- 1:22:26The Horsley and the land-based torpedo-bomber ideaChapter
The Horsley's changing bomber requirements produced a large torpedo aircraft, with limits to the RAF's claim that it could settle the battleship problem.
- 1:25:22Denmark turns the Horsley into the Dantop seaplane torpedo bomberNotable Point
The Danish Dantop adapted Hawker's large Horsley torpedo bomber to a floatplane configuration with a more powerful Armstrong Siddeley engine.
- 1:27:31Why aircraft development rarely begins with one specificationNotable Point
The Swordfish's ancestry back to the Sopwith Cuckoo shows why a single specification date can understate an aircraft's real development time.
- 1:36:09The first Hawker Harrier tests another torpedo-bomber routeNotable Point
Hawker's original Harrier was a two-seat experimental bomber that competed with the Horsley in the torpedo role.
- 1:41:22The F.20/27 tests engines for later Hawker fightersNotable Point
Hawker's F.20/27 remained experimental but contributed to the development of later fighters.
- 1:46:08QuestionWere British aircraft names determined mainly by the RAF rather than by manufacturers?AnswerQ&A
Not in the 1920s: manufacturers still led naming to a significant degree, while RAF involvement increased during the 1930s without becoming absolute control.
- 1:47:15The Hoopoe's repeated redesigns pursue naval-fighter performanceNotable Point
Float trials, engine changes and revised wings improved the Hoopoe, but the Nimrod overtook it before it won a service order.
- 1:51:00Why the Admiralty depended on Air Ministry adviceNotable Point
Naval fighter requirements depended on the technical options that the Air Ministry presented to the Admiralty.
- 1:54:27QuestionWas Bristol the only British company that built both aircraft and engines?AnswerQ&A
No: Hawker also combined aircraft and engine interests through its merger with Armstrong Siddeley.
- 1:56:19The Hawker Hart becomes an international aircraft familyChapter
The Hart produced a family of bombers, fighters and naval derivatives used by Britain and numerous foreign air arms.
- 2:01:21QuestionDid Hart-family aircraft fly missions during the Second World War?AnswerQ&A
Yes, some were still in use during the war.
- 2:01:45QuestionDid Bristol make any naval aircraft?AnswerQ&A
Bristol proposed a few naval aircraft, although their production status is unspecified.
- 2:02:22QuestionDid South Africa fly Hawker Audax aircraft in Ethiopia?AnswerQ&A
Probably, although the identification remains uncertain.
- 2:03:26The Hart competes for a demanding day-bomber requirementChapter
A requirement for more than 160 miles per hour put competing British day-bomber designs under pressure.
- 2:06:46From Hawker Hart to Osprey fleet air defenceChapter
A Hart-derived seaplane becomes the Osprey after successful naval trials and a slow procurement process divided between the Air Ministry and Admiralty.
- 2:10:39What naval equipment cost the Osprey in performanceNotable Point
The heavier naval Osprey retained much of the Hart's performance, with maximum speeds measured at different altitudes.
- 2:13:20QuestionWould a list of battlecruisers include the Iowa class?AnswerQ&A
Iowa is not classified here as a battlecruiser, although its functional priorities put it nearer that end of a spectrum than Montana. A purpose-built contemporary battlecruiser would still differ from Iowa.
- 2:17:59How filtered technical advice limited naval procurement choicesNotable Point
An intermediary's assumptions could restrict the technical information available to naval decision-makers.
- 2:20:41QuestionWhat were the lessons of the 1930s?AnswerQ&A
Ships needed enough speed to keep up with aircraft carriers and stronger air defence as aircraft appeared more often in exercises.
- 2:22:17Osprey exercises expose fighter direction before radarNotable Point
Royal Navy exercises used Ospreys, visual spotting, radio telegraphy, reconnaissance aircraft, and destroyer pickets to test whether fighters could break up air attacks before radar existed.
- 2:25:01The Nimrod as the Osprey's carrier-fighter partnerNotable Point
The Hawker Nimrod entered carrier service alongside the Osprey and equipped several Royal Navy fighter squadrons during the interwar years.
- 2:31:42CAM ships launch one-way Sea Hurricane interceptionsChapter
Battle of the Atlantic losses prompted Hurricane conversions for catapult aircraft merchantmen, giving otherwise unprotected convoys a fighter that could break up an incoming air attack.
- 2:34:41An unverified recollection of a pom-pom-armed Sea HurricaneNotable Point
A recalled archival photograph raises an uncertain example of Fleet Air Arm armament modifications.
- 2:37:16QuestionDid CAM-ship Hurricanes really need landing gear if they could not return to the launching ship?AnswerQ&A
Yes. The undercarriage was not much of a problem, and a fighter launched near land could still land ashore.
- 2:37:36QuestionDid Hurricanes have more success than Spitfires with early wing-mounted 20 mm cannon?AnswerQ&A
Yes: the Hurricane's thicker wing made the cannon installation easier to accommodate.
- 2:38:42MAC ships add a flight deck but no Arctic shelterNotable Point
Merchant aircraft carriers could recover Sea Hurricanes and anti-submarine aircraft, but their lack of hangars made maintenance exceptionally difficult on Arctic convoys.
- 2:39:59Sea Hurricanes defend the August 1942 Malta convoysChapter
Sea Hurricanes joined Fulmars and Martlets aboard HMS Indomitable, Eagle, and Victorious during the August 1942 Malta convoy battles.
- 2:41:21QuestionWhen did Sea Hurricanes receive 20 mm cannon, bombs, and rockets?AnswerQ&A
Cannon appeared with the Sea Hurricane Mk.IC's Hurricane Mk.IIC lineage around 1942, but exact weapon fits are difficult to date because conversions and Fleet Air Arm modifications varied.
- 2:43:22QuestionWere Hurricanes selected for CAM ships generally aircraft that would otherwise have been cannibalised for parts?AnswerQ&A
That was broadly the intention, although some still had useful service left and conversion could involve considerable airframe work.
- 2:44:43Hawker develops the Hurricane's successor around two enginesNotable Point
A 1937 requirement for a twelve-gun interceptor led to parallel designs around the Rolls-Royce Vulture and Napier Sabre.
- 2:46:05Sea Fury orders sustain Hawker after the warNotable Point
The lightened Tempest concept evolved into the Sea Fury, whose large Fleet Air Arm order helped sustain Hawker after the war.
- 2:50:28Sea Furies strike from British and Australian carriers in KoreaChapter
Sea Furies flew ground-attack missions from Royal Navy and Royal Australian Navy carriers in Korea and also fought MiG-15 jet fighters.
- 2:55:03QuestionIs there a good accessible book comparing Second World War propeller technology?AnswerQ&A
No book receives an unqualified recommendation: one strong technical treatment assumes engineering knowledge, while a pictorial alternative explains too little.
- 2:55:42QuestionWhere were surviving Sea Furies displayed or flown when this stream aired?AnswerQ&A
Examples identified in 2021 included an Australian naval aviation museum, Navy Wings in Britain, and Yeovilton. Duxford and a Canadian example were recalled less certainly.
- 2:56:28QuestionWhy did advanced piston fighters still enter service when jet aircraft were already emerging?AnswerQ&A
Piston aircraft had reached a reliable peak, while early jets were promising but not yet mature enough to replace them immediately.
- 2:57:04QuestionWhy is the Hawker Tempest comparatively forgotten?AnswerQ&A
One working theory is that the Typhoon occupies the more memorable role in their pairing, while the Tempest never gained the corrective literature that revived interest in the Hurricane.
- 2:59:49QuestionAre late piston aircraft comparable to older F-16 and F/A-18 variants remaining useful while newer technology matures?AnswerQ&A
Yes: proven equipment, experienced crews, and known operating quirks can temporarily outweigh a replacement's superior design, especially when the new system changes how people must operate it.
- 3:04:21Early jet throttle response required different handlingNotable Point
Slow throttle response and an audience account of abrupt-throttle failures illustrate the handling changes required by early jets.
- 3:05:23QuestionCould the P-47 Thunderbolt have been navalised instead of relying on the F6F Hellcat?AnswerQ&A
The preference here is for the Hellcat: naval conversion is judged likely to cost the P-47 performance, while its heavier bomb load does not by itself establish carrier suitability.
- 3:06:40Why late piston fighters could wait until after the warNotable Point
Reduced urgency against late-war German and Japanese aviation allowed advanced piston fighters to mature for the postwar transition.
- 3:08:09A speculative 1941 Supermarine naval fighterNotable Point
A late counterfactual considers how a powerful Supermarine carrier fighter might have changed Fleet Air Arm interception if it had entered service in 1941.
- 3:11:16A disputed comparison of P-47 and Mustang escort rangeNotable Point
Different audience claims about P-47 and Mustang range remain unresolved before attention returns to ground attack.
- 3:12:08Eric Brown and the risks of ferrying captured aircraftNotable Point
Uncertain remaining engine life frames an account of ferrying captured German jets, followed by a qualified recollection about recovering a Komet.
- 3:13:44QuestionWhy did the United States retain the Corsair while retiring the Hellcat?AnswerQ&A
The Bearcat was available to replace the Hellcat.
- 3:14:12QuestionWas the Hawker Fury simply a simplified Tempest, with the Sea Fury as its naval version?AnswerQ&A
The starting point was a lighter Tempest with shortened wings, but the Sea Fury passed through enough further changes to become quite different from that initial concept.
- 3:14:45QuestionAre you familiar with the Me 262 being restored to fly with original Jumo 004 engines?AnswerQ&A
The proposal sounds familiar, but the personal preference is to watch from the ground, including after the clarification about modern replacement parts.
- 3:18:44QuestionWas a 25-hour engine lifespan adequate if an aircraft was only expected to survive about 20 flying hours?AnswerQ&A
An average lifespan does not guarantee that an individual engine will last that long; it can fail much sooner or last considerably longer.