the Battle of Britain: The rise of the turbojet

now that is ABS if ive heard it.one the range is to great unless you are starting it in the 1970s and ww2 does not happen? two there is no such tech YET some time in the next 150 years MAYBE.
 
ok but remember we are talking about the nazis here they tought they could take on the world.hitler thinks britain is just some small island in the middle of the north atlantic. how could a weak and powerless island get jet technology when the mighty riech is struggling to make a jet.

Yes you really haven't read up on the history of jet aircraft have you? Otherwise you would know that IOTL the He-178 was the first jet aircraft to fly, and did so in 1939. The Germans were heavily involved in jet technology, which is why you need a serious divergence to stop them beating the British ikn your scenario.
 
You can't fly the E28/39 in either 1933 or 1938 because the name is a specification written in 1939.

Swept wings was a German concept, from 1935, I believe, and not even the Germans paid much attention. The purpose is to fool the air into thinking the wing is thinner than it is, and Gloster made fat wings, albeit the Meteor had a lengthy chord which helped.

The armament on aircraft go into the wings only because of that nasty prop in the way. Without it, the guns go in the fuselage. Handwaving an available 20mm cannon seems a tad ASBish.

Sir Stanley Hooker didn't finish school until 1935, and worked at Rolls Royce from 1938, so I don't think RR can help with too early a development.

Sir Frank was a pilot, but he was not a test pilot. The job of testing shouldn't go to the design engineer of the project, because the tail could fall off.

A single-engine jet goes from 300 mile range to 1700 miles? I'd like to see your engineering studies on this, unless you're just making it up to sound impressive. It is impressive only if it's plausible.
 

Nick P

Donor
February 20th 1936


July 10th 1938

The first flyable prototype jet engine is tested at RAF cranwell in front of the air ministry and air craft production. RAF fighter command is also present. Frank whittle at the controls of the gloster E.28/39 lifts off and does a 17 minute flight. climbing upto 40,000 feet and hitting 466 mph in level flight. Whittle puts the jet into a shallow dive pulling up 50 feet from the ground the sound wave knocks the observers onto the ground.After the flight whittle answers questions from the observers.

"how fast did you go in the aircraft asks a air ministry official ".whittle replies i hit 466 mph i could of pushed it further but thought better of it".
the ministry of aircraft production ask " when can you start putting the engines into full production".

Now this is what I have trouble with. The Gloster E.28/39 went through 4 years of development and test flying in wartime when it had to get better. Despite this it was still only capable of a maximum speed of 350mph and a max height of 42,000ft.
There's no realistic way to reach 466mph without running out of fuel in that tiny airframe. To reach 40,000ft would take at least 30 minutes of flight by which time it has to land.
I was told once that the aircraft is not aerodynamically suited to higher speeds, let alone near supersonic.

So what gets done to both the engine and the aircraft in under 2 years to make it so good?
 

GarethC

Donor
I think you might want to have a look at the cannon armament issue - BoB Spits and Hurries had MGs because of problems fitting the Hispano, and when that was resolved they were still in short supply., IIRC.
 
Machiavelli Jr said:
Slightly spoiled the air of hard-headed realism by mentioning that nightmare of a design.
Thinking only of the principle: solid rocket boosters, point defense, no pretense of long range intercept. Whence "like" & "cure"...;)
Machiavelli Jr said:
Agreed that the OTL Air Ministry are *not* going to be showing any real interest in jet engines in 1933. Problem is, any change you make to get a functioning Air Ministry leads them to start changing other things before they muck about with experimental engines.
I'd settle for something simple like realizing .303s won't work so well against armor,:rolleyes: & getting the 20mm working before 1944.:rolleyes:
 
So you oppose JATO?:confused:
We are talking about purely rocket powered planes; JATO is whole different ball game as I would hope you realize. Rocket powered fighters/interceptors are a waste of time and resources and are nigh on useless in combat.
 
I have a feeling that if England goes the jet route Germany would respond with attempts to introduce earlier the ME-262, and the HO-229 as Reichsmarschall Göring issued a request for design proposals in 1943 after it became obvious that German fighters weren't getting the job done, and the German's rivals were catching up. Reports of the LF encountering Jet fighter resistance, even in small numbers during the Battle for Britain would probably accelerate the request for design proposals to Q3 or Q4 1940's at the latest.

At that point the Brit's are probably even worse off then they were historically as once Germany starts mass producing the HO-229, the Germans would have a fighter bomber that has a reduced Radar cross section, and can travel at 1,000 km/h which results in the British Chain home radar a key asset in the Battle for Britain having something like only 2 minutes of advanced warning when a HO-229 attacks at sea level.
 
At that point the Brit's are probably even worse off then they were historically as once Germany starts mass producing the HO-229, the Germans would have a fighter bomber that has a reduced Radar cross section, and can travel at 1,000 km/h which results in the British Chain home radar a key asset in the Battle for Britain having something like only 2 minutes of advanced warning when a HO-229 attacks at sea level.

And that will crash into the ground unless flown in a straight line by a very, very highly skilled pilot in perfect weather.

People bring up the HO-229 a lot as a superplane but the reality is that a flying wing built before computer control is available is a dynamically unstable death trap.
 
ok but remember we are talking about the nazis here they tought they could take on the world.hitler thinks britain is just some small island in the middle of the north atlantic. how could a weak and powerless island get jet technology when the mighty riech is struggling to make a jet.

The abwehr had a number of penetrations into British military development plus that kind of radical spending would end up in public budget debates in parliament
 
Ok here is a potential pod. Whittle meets a rather famous lady pilot and her husband Amy Johnston and Jim Mollinson in 1932. On finding out she is going to take part in the MacRobertson air race he discusses his new engine. Amy becomes excited about this and brings it to the attention of her father as well as her other backer lord Wakefield (founder of castrol oil co.) Then working with rover and de havallind they design the DH.88 Comet but with 2 jet engines. The race is a successful demonstration of the technology and with lord Wakefields contacts, the air ministry takes note and begins funding of military applications. Possibly after a test flight for the current Secretary of state for the colonies philip cunliffe-lister, made Secretary of state for air in 1935. This would cut down on research time as the team of designers would have tried to get the best fuel efficiency for the race anyway but as this engine is a 1 off finely tuned race engine there is still plenty of development needed. I think there would be a reaction from German engineers and companies but would the Nazis implement their recommendations I am not so sure.
 
The engines we're on about, are the the wrong type for someone to take a step back, have a eureka moment and think "if I took a gearing input from that shaft there and ran a propeller off of it I'd have a fast power supply for a spitfire".
 
Whittle puts the jet into a shallow dive pulling up 50 feet dos this aircraft have a working plan tail as any speed of over 400 mph can get you killed in dive with out one even in shallow dive :eek: gloster meteor mk3
 
And that will crash into the ground unless flown in a straight line by a very, very highly skilled pilot in perfect weather.

People bring up the HO-229 a lot as a superplane but the reality is that a flying wing built before computer control is available is a dynamically unstable death trap.

Really? What's your source? Everything I've read suggests the flying wing prototype far outperformed most comparable jet or monoplane aircraft of the day, and the HO-229 even outflew a ME-262 in a mock dogfight. I'm not saying that the HO-229 would be a 'perfect' fit all solution to solve all of the LF's problems. However the LF did have some great pilots during the wartime era, and people seem to forget that Germany's jet aircraft even though they did suffer from some problems were overall far better performance aircraft then their Allied monoplane and Jet counterparts of the same era.
 
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