The Mother of All Spitfire Wanks
The Background
I started a
"RAF 1919-39 with no Geddes Axe" thread on Secret Projects exactly four months ago. So far I've only written two posts for it because of real life and contributing to other threads here and there.
The idea is that the British Government doubles its spending on all forms of aviation between 1st April 1922 and 31st March 1936. All forms of aviation include civil aviation as well as the RAF proper and FAA. So this means an RAF that's double the size of OTL by 31.03.34 when limited rearmament began IOTL and is also twice the size of OTL at 31.03.36 when full-scale rearmament began.
It also means that behind it were doubled Government research departments like the RAE and the aviation industry was twice as large. There were was the same number of firms as OTL, but each firm had:
- Twice the factory space.
- Double the number of factory workers.
- Been using larger scale production methods than IOTL due to building twice as many aircraft since 01.04.22.
- Been able to maintain design departments that were twice as large as IOTL, so twice as many designers, engineers, draughtsmen, more & better wind tunnels, etc.
- Been able to do twice the amount of private research since 01.04.22.
Design
The Air Ministry had been ordering double the number of prototypes since 01.04.22. Therefore, in the case of Supermarine it would have built 2 Type 224 Spitfire prototypes instead of one and they might have been built to a more advanced design than IOTL. The firm would also have been able to put more resources into the design of the Type 300 Spitfire so it
"gets the drawings completed sooner", can start production of the prototypes sooner, which in turn would be completed sooner, so the development flying could consume sooner (because it makes its first flight sooner) which is further accelerated by building two prototypes instead of one. The end result is that Supermarine was ready to start manufacturing production aircraft sooner. If the Merlin engine isn't ready sooner the prototypes could be fitted with another suitable engine until it was. Messerschmitt did it with the Bf109 and I suggested that it be done with the Hurricane & Spitfire prototype in this thread and others.
Production
IOTL the following aircraft were ordered in 1936 as part of Expansion Scheme F:
- 600 Hurricanes from Hawker;
- 389 Hotspurs from Avro. However, the contract was cancelled in 1937 and Defiants were ordered from Boulton-Paul to be built in their place;
- 400 Henleys from Gloster as armament trainers, but the contract was reduced to 200.
- 310 Spitfires from Supermarine.
- 168 Walruses from Supermarine.
- 144 Lysanders from Westland against a requirement for 186.
- Total 2,011 ordered against a requirement for 2,053 aircraft.
ITTL Scheme F was for the same number of aircraft.
I'd usually have 600 Hurricanes still ordered from Hawker, 389 Hurricanes of Spitfires ordered from Boulton-Paul in 1937, 400 Hurricanes ordered from Gloster, 310 Spitfires still ordered from Supermarine, 168 Walruses from Saunders Roe (so Supermarine could concentrate on building Spitfires) and 144 Hurricanes or Spitfires ordered from Westland.
However, as this is a
"wank the Spitfire" thread 1,843 Spitfires were ordered from 5 firms (Boulton-Paul, Gloster, Hawker, Supermarine & Westland) ITTL against a requirement for 1,885 and 168 Walruses would still be ordered from Saunders Roe.
Although its the same number of aircraft the six factories had double the building capacity at 31.03.36 so once they had completed the aircraft built to Scheme C they'd be able to deliver their Scheme F aircraft at double the OTL rate, which means the last aircraft would have been delivered sooner and they'd have begun work on the follow up contracts sooner.
The situation at 03.09.39
This is the situation IOTL (according to the Putnams RAF aircraft & British naval aircraft books) on 03.09.39
if the OTL types were built in the numbers that I think could have been built.
Note that the reason why its 270 Spitfires and 400 Hurricanes despite twice as many Hurricanes being ordered in 1936 is in part because all the Hurricanes exported to 03.09.39 were taken from the first RAF Hurricane contract. However, the numbers might not have been so large in OTL x 2 because some of the extra production may have been exported.
This is the situation at 03.09.39 ITTL if more Spitfires had been ordered instead of the Henley, Hurricane and Lysander.
Notes
- In common with OTL x 2 the TTL x 2 numbers may not have been that large because some of the extra production may have been exported.
- OTOH the number of Spitfires built by Supermarine would have been more than 540 because production of the Walrus was transferred from Supermarine to Saunders Roe in 1936 instead of 1940.
- Supermarine built a total of 241 Walruses for the RAF, FAA & Export to contracts let from July 1936 IOTL.
- The 168 ordered under Scheme F were delivered between June 1937 and September 1939.
- The 65 ordered to follow up contracts and for export were delivered between October 1939 and August 1940.
- The 8 ordered by Argentina & Turkey were built 1938-39.
- Does that mean Supermarine could have delivered another 352 Spitfires from June 1937 to September 1939 in place of the 168 Walruses to the July 1936 contract and the 8 Walruses built to export contracts?
- Does that mean Supermarine could have delivered another 130 Spitfires from October 1939 to August 1940?
- The number of Gladiators & Sea Gladiators would have been smaller because production of those types were terminated ASAP ITTL in favour of Spitfires.
- According to Putnams and Air Britain's RAF aircraft books a grand total of 746 production Gladiators were built for the RAF, RN & export.
- 225 Gladiator Mk I were ordered for the RAF.
- 209 were ordered in 1935 as part of Expansion Scheme C.
- 22 were cancelled. I can't prove it, but I think they were the 22 Gladiators built for Belgium.
- 16 replacement aircraft were ordered.
- Thus 203 Mk I were built for the RAF and they were delivered between February 1937 and February 1938.
- 143 Gladiators (125 Mk I & 18 Mk II) were built to export contracts.
- 378 Gladiator Mk II were ordered in 1937 & 1938 and were delivered from September 1938 to April 1940.
- 21 were diverted to export contracts. That is the second 6 of the 12 aircraft sold to Norway and 15 sold to Portugal.
- 98 were completed as Sea Gladiators & were delivered from December 1938 and according to the Putnams books the FAA had 54 on charge at 03.09.39.
- 259 Gladiator Mk II aircraft delivered to the RAF.
- Thus 560 of the 603 aircraft ordered to British contracts (225 Mk I & 378 Mk II) were delivered to the RAF & RN and 43 were exported (22 Belgium, 6 Norway & 15 Portugal).
- In OTL x 2 that works out as 1,492 Gladiators.
- 1,120 out of 1,206 aircraft ordered to British contracts (450 Mk I & 756 Mk II) were delivered to the RAF & RN and 86 Gladiators (44 Mk I and 42 Mk II) were diverted to export contracts.
- 286 Gladiators (250 Mk I and 36 Mk II) were built to export contracts.
- In TTL x 2 that works out as 1,492 aircraft still built, but.
- 450 Gladiator Mk I built to British contracts of which 406 were delivered to the RAF & 44 were diverted to export contracts.
- 756 Spitfires built to British contracts instead of the Gladiator Mk IIs of which the RAF received 518, the RN received 196 and 42 were diverted to export contracts.
- 286 aircraft built to export contracts, most of which were built as Gladiators and the rest as Spitfires.
- According to Bowyer in "Aircraft for the Few".
- 210 Gladiator Mk I were delivered to the RAF.
- 38 were taken off charge by 03.09.39.
- Leaving 172 at 03.09.39.
- 252 Gladiator Mk II were acquired by the RAF, 224 were delivered by 03.09.39 and none had been taken off charge.
- 462 Gladiators were built for the RAF (210 Mk I and 252 Mk II).
- 38 Mk I had been taken off charge by 03.09.39 and 28 Mk II remained to be delivered.
- That meant 396 Gladiators (172 Mk I & 224 Mk II) were on charge.
- Except that my total on charge at 03.09.39 from the Putnams books is 374 (including 54 Sea Gladiators) a discrepancy of 22 aircraft.
- IOTL x 2
- 792 on charge at 03.09.39 (344 Mk I and 448 Mk II) against 748 (including 108 Sea Gladiators) from my other sources, which is 44 aircraft too many.
- 924 built for the RAF (420 Mk I and 504 Mk II against 1,120 (including 196 Sea Gladiators) from my other sources, a discrepancy of 196 aircraft.
- The discrepancy of 196 aircraft happens to match the 196 Sea Gladiators built IOTL x 2.
- ITTL x 2
- 344 Gladiator Mk I on charge at 03.09.39 out of 420 delivered February 1937 to February 1938 against the 406 that my other sources say were built for the RAF, which is 14 too many.
- 448 Spitfires on charge at 03.09.39 out the 504 delivered from September 1938 to April 1940 against the 714 Spitfires (including 196 Seafires) that my other sources say were built for the RAF & RN, which is 210 too few.
- The net difference is 196 aircraft which happens to be the number of Seafires built instead of Sea Gladiators ITTL x 2.
- Spitfires built by Boulton Paul.
- IOTL
- 389 Hotspurs were ordered from Avro in June 1936 for delivery by 31.03.39 and cancelled in 1937
- The Defiant was substituted in its place and the first production contract (for 87 aircraft) was let on 28.04.37, the second contract for (for 202 aircraft) was let in February 1938 and the third contract (for 161 aircraft) was let in May 1938. That made a total of 450 production aircraft ordered before the outbreak of World War II.
- The first of 2 Defiant prototypes (both ordered on 04.12.35) made its first flight on 11.08.37.
- The first production aircraft wasn't delivered until August 1939.
- The 87 aircraft ordered to the first contract were delivered by May 1940.
- The 202 aircraft ordered to the second contract were delivered between June and October 1940.
- The 161 aircraft ordered to the third contract were delivered between November 1940 and February 1941.
- ITTL we can do a lot better than that.
- 389 Spitfires were ordered from Boulton Paul in June 1936 for delivery by 31.03.39
- So Boulton-Paul had a year's head start over OTL.
- The Spitfire was 18 months ahead of the Defiant IOTL having made its first flight on 05.03.36.
- It's development was probably even further ahead of the Defiant ITTL due to 2 prototypes being built ITTL and the first flight might have been sooner.
- Deliveries of Supermarine built Spitfires began in June 1938 IOTL, but ITTL they began (at the latest) in December 1937 partially because of the above and also because that's when deliveries of the Spitfires built by Hawker instead of the Hurricane would begin.
- At the latest deliveries of Boulton-Paul Spitfires would have begun in August 1938 ITTL and possibly as early as February 1938.
- The first 450 Defiants were delivered between August 1939 and February 1941.
- Bring that forward 18 months and the 450 Spitfires built in their place would have been delivered between February 1938 and August 1939.
- Boulton Paul also built the 136 Blackburn Rocs IOTL. They were delivered between February 1938 and August 1940. Seafires could have been built in their place ITTL.