In 1945 as the war in Europe came to a close the allies scrambled to acquire German technology and scientists. In particular the V2 Rocket was highly sought after with the various allied nations almost racing against each other to recover as many rockets and technical staff as possible before the other allied powers could get their hands on them.
The United States came away with the greatest prizes in the form of over 300 railcars loads of V2 Rockets, parts and technical documents and over 120 of the most senior German rocket scientists. Most notably the US was able to secure Wernher von Braun who would go on to design rockets that would put American astronauts into space and ultimately land man on the moon.
While not having been anywhere near as successful as the Americans Britain had still managed to recover a significant quantity of material including intact rockets and the parts to put together more.
To evaluate and make best use of what they had obtained Britain carried out Operation Backfire in October of 1945.
Backfire involved firing V2 rockets from a former German launch site in the Netherlands (with the help of captured German personnel) to the edge of space before they splashed down in the North Sea. The experiment was a success and the Engineers overseeing the tests realized that in the V2 the Germans had solved a number of fundamental problems that had plagued rocketry up to that point such as designing a sizeable engine, an advanced pump to get fuel in fast enough and a sophisticated guidance system.

Following the success of Operation Backfire which had demonstrated the capabilities of the V2 rocket a team of engineers at the British Interplanetary Society realised that their long held dream of spaceflight now potentially had a path to realisation.

After H.E. Ross observed that the V-2 was “nearly big enough to carry a man” a designer by the name of R.A. Smith put forward a proposal in 1946 for a manned suborbital spaceflight using a derivative of the V2 under the name Megaroc. The proposed rocket was essentially an enlarged, strengthened and technologically enhanced version of the V2 and actually had a lot in common with the later Mercury-Redstone Launch Vehicle that would put the first American in space some 15 years later.
While the origin and turbo pumps were largely the same as the V2 their orientation would be changed. The fuel tanks would be of greater radius and length to carry an increased fuel load party offset by a lighter payload. The stabilisation fins at the base of the V2 would be removed and the rocket was made to spin slightly to improve stability. Finally the explosive warhead was to be replaced with an unpressurised capsule.
The capsule as designed would have a weight of 586 kg, two large side-ports for access, observation and egress and a “strobo-periscope” for rearward viewing after the rotating cabin had separated from the hull.
The occupant of the capsule (Likely to have been the legendary Royal Navy test pilot Eric "Winkle" Brown) was to wear a standard high- altitude g-suit with its own air-conditioning unit and personal parachute. No other air-conditioning was proposed owing to the short duration of the flight. The occupant would sit in a counterbalanced cradle designed to tilt. The capsule would be attitude-stabilized by hydrogen peroxide jets and fitted with automatic, manual and emergency controls.
Megaroc’s capsule was suitable for either sea or land impact and was fitted with a crumple skirt to absorb some of the shock and avoid bounce with a quick-release mechanism for the parachute.

Not being powerful enough to achieve orbit Megaroc was to be a suborbital flight with the occupant experiencing an acceleration of no more than 3g and approximately 5 mins of weightlessness.

The proposal was submitted to the Ministry of Supply in 1946 with an observation that there would need to be a roughly 5 year period of development and testing with the aim to conduct the first manned flight by 1952.
The British government did not take the project forward and instead, chose to concentrate on Nuclear and conventional research which had a more immediate military use. The United Kingdom was effectively bankrupt after WW2 and there were only limited resources available but even when funds became easier the government mostly chose not to participate in space research except when derived relatively cheaply from military projects.

The project was noted to be 10 years ahead of its time by NASA engineers who reviewed it years later. The same NASA engineers predicted the rocket would have been capable of first achieving a crewed suborbital flight between 1949 and 1951, and capable of sending people to space reliably by 1951.

What if the British Government had been of the opinion that rocketry was something worth pursuing decided to take Megaroc forward?

If the money and political willpower was there would Megaroc have actually been technically and scientifically feasible?

If Britain were to bring about the dawn of the space age by launching both the first human into space on a suborbital flight in 1952 what would the global ramifications have been and what would this have meant for the future of spaceflight and the British Space Program?

What would be the legacy of this flight and its achievement today?
 
Perhaps...

1. the UK taking a lead in the eventual development of ESA, at the expense of France
2. alternatively, the UK cooperating with the Commonwealth in an integrated space programme which would resemble OTL ESA's (with the addition of manned low earth orbit flights - you can imagine the expertise gained via a successful Megaroc eventually informing a British Gemini type capsule or even a small MOL type station but I can't imagine them going to the Moon!)
3. alternatively, the UK/Commonwealth becoming a trusted junior partner in American space efforts, contributing knowhow formally rather than via various braindrains to the US from Britain and Canada. Perhaps Hawker Siddeley might be successful in bidding for some work on the Shuttle as I vaguely think they were in the early 70s. Maybe Britain/the Commonwealth would be rewarded by getting bums on seats on various Apollo/Skylab/Shuttle missions.
 
Perhaps...

1. the UK taking a lead in the eventual development of ESA, at the expense of France
2. alternatively, the UK cooperating with the Commonwealth in an integrated space programme which would resemble OTL ESA's (with the addition of manned low earth orbit flights - you can imagine the expertise gained via a successful Megaroc eventually informing a British Gemini type capsule or even a small MOL type station but I can't imagine them going to the Moon!)
3. alternatively, the UK/Commonwealth becoming a trusted junior partner in American space efforts, contributing knowhow formally rather than via various braindrains to the US from Britain and Canada. Perhaps Hawker Siddeley might be successful in bidding for some work on the Shuttle as I vaguely think they were in the early 70s. Maybe Britain/the Commonwealth would be rewarded by getting bums on seats on various Apollo/Skylab/Shuttle missions.
I would go with 2 then 3 then 1 in that order. With the Empire intact and RAAF Womera founded in 1947 that seems to be the most reasonable PoD.
 
If the UK were able to achieve a manned suborbital flight by 1952 would this have been just a one off or part of a larger program perhaps similar to the Mercury program?
If the launch takes place from RAAF Womera I can imagine that there would be political pressure for an Australian Astronaut aboard at least one potential follow up flight.

Might a successful Megaroc flight effectively kill the space race before it has even begun resulting in serious butterflies for human space exploration?
 
If the UK were able to achieve a manned suborbital flight by 1952 would this have been just a one off or part of a larger program perhaps similar to the Mercury program?
If the launch takes place from RAAF Womera I can imagine that there would be political pressure for an Australian Astronaut aboard at least one potential follow up flight.

Might a successful Megaroc flight effectively kill the space race before it has even begun resulting in serious butterflies for human space exploration?
It would not kill the space race. Just result in serious butterflies.

It is also a blind alley. The Soviets used a modified ICBM to put Sputnik into orbit. The R7 had 8 times the Megaroc's lift and thus could put a manned capsule in orbit. The difference between Virgin Galactica's paper aeroplane and Space X's Dragon capsule.
 
Your biggest issue is how does Britain pay for building the MegaRoc? That was essentially always the problem. What then does NOT get funded?

I'd love it if Britain could pull it off but there has to be a pretty sound reason for building the MegaRoc (likely as a military project) and then putting a man in it as a 'secondary' project which itself would require more 'logical' reasoning than the 'stunt' (and that's what everyone considered it at the time) of shooting a man into 'space'. As noted it would have to be part of a 'larger' plan and frankly it would likely result in both the US and USSR accelerating efforts to actually put a man into orbit, leaving the British far behind.

Randy
 
Your biggest issue is how does Britain pay for building the MegaRoc? That was essentially always the problem. What then does NOT get funded?

I'd love it if Britain could pull it off but there has to be a pretty sound reason for building the MegaRoc (likely as a military project) and then putting a man in it as a 'secondary' project which itself would require more 'logical' reasoning than the 'stunt' (and that's what everyone considered it at the time) of shooting a man into 'space'. As noted it would have to be part of a 'larger' plan and frankly it would likely result in both the US and USSR accelerating efforts to actually put a man into orbit, leaving the British far behind.

Randy
How about only making only one V bomber type and not four of them, thus saving some money?
 
How about only making only one V bomber type and not four of them, thus saving some money?
Cannot see where you get four instead of three. Whatever, the RAF wanted more than one design because they were worried that if they went with just one they might pick a lemon.
 
How about only making only one V bomber type and not four of them, thus saving some money?
I thought there were only three types. In any case, the Valiant is absolutely getting made - that was the low-risk option, needed in case any of the more exotic designs failed to perform. You'll also definitely get one of the others - the RAF wants the best aircraft it can get, and although they'll fall back on the Valiant if they have to there's a lot of potential that they would like to explore. If there's only two type being made and one of them is the Valiant, I'd guess the Vulcan would be the other one. The Victor is not different enough from the Valiant to justify being considered the "exotic" option.
 
How about only making only one V bomber type and not four of them, thus saving some money?

V-Bomber design started before the end of WWII and they wanted multiple designs (Valiant, Victor and Vulcan*) to try and 'future-proof' the force which is why the different designs had different specifications and came out in a 'sequence'. Besides bombers won the war and there's not a lot of faith in missiles at this point though that does change rapidly.

But as stated in many places the British government wasn't interested in the idea of 'manned' spaceflight at the time so, specifically, since it wasn't proposed as a SRBM (key being the 'short' range of between 57 to around 200 miles) there was no real incentive. Now since "MegaRoc" was in theory on par with the US Redstone we could make the argument that someone might suggest it as a British missile BUT given the payload discrepancy (586kg for Megaroc compared to 2,860kg for Redstone) the immediate problem is that Megaroc simply isn't a credible offensive weapon from British soil. (Especially given the size and weight of British atomic weapons of the day)

There's not a lot of 'incentive' for it. Now having said that IF they can convince the government to try sending up a manned V2 test flight they might suddenly realize the propaganda effects of the flight and THEN start looking into missile development but a separate program (such as Megaroc) isn't going to get support.

Randy
* And one of these days should I get ambitious I'll probably expand out my notes on the idea of Britian "opps-ing" their way into having the V-Force end up being MUCH more than they bargained for with the Valiant being modified to the "Pathfinder" (B2) configurations because they find out low-and-fast is a better option, the Victor getting re-engined and becoming the worlds first "supersonic" (if only mostly in 'dashes' :) ) bomber and the Vulcan getting enhanced EW gear to supplement it's unsuspected (if only slightly :) ) "stealth" characteristics. And suddenly Britain is considered the "top" aviation industry in the world :)
 
I thought there were only three types. In any case, the Valiant is absolutely getting made - that was the low-risk option, needed in case any of the more exotic designs failed to perform. You'll also definitely get one of the others - the RAF wants the best aircraft it can get, and although they'll fall back on the Valiant if they have to there's a lot of potential that they would like to explore. If there's only two type being made and one of them is the Valiant, I'd guess the Vulcan would be the other one. The Victor is not different enough from the Valiant to justify being considered the "exotic" option.

There was also the Shorts Sperrin.....and an unnofficial offering of a modified Comet from de Havilland.
 
In any case, the Valiant is absolutely getting made - that was the low-risk option, needed in case any of the more exotic designs failed to perform
Actually, my understanding is that it was only supposed to be Handley Page and Avro. Vickers managed to just slip in using personal connections to the powers that be. So if any of them were not going to be built the Valiant seems the most likely. The Shorts Sperrin was supposed to be the lower tech back up plan.
 

marathag

Banned
I thought there were only three types. In any case, the Valiant is absolutely getting made - that was the low-risk option, needed in case any of the more exotic designs failed to perform. You'll also definitely get one of the others - the RAF wants the best aircraft it can get, and although they'll fall back on the Valiant if they have to there's a lot of potential that they would like to explore. If there's only two type being made and one of them is the Valiant, I'd guess the Vulcan would be the other one. The Victor is not different enough from the Valiant to justify being considered the "exotic" option.
Always one more option, buy from Uncle Sam
 
Unless it's built with a different alloy, the Valiant B2 is going to be grounded sharpish, due to the same issues that killed the B1.

Which was not the switch to low level although it didn't help. It was metal fatigue in the alloy used. One wing spar, never fitted and still in the factory, was rate as had the same cracks, despite never been fitted or flown
 
Unless it's built with a different alloy, the Valiant B2 is going to be grounded sharpish, due to the same issues that killed the B1.

Which was not the switch to low level although it didn't help. It was metal fatigue in the alloy used. One wing spar, never fitted and still in the factory, was rate as had the same cracks, despite never been fitted or flown

Since they were rebuilding the fleet to the B2 standard I had them replace the spars with a new alloy, after all it IS AH :)

Randy
 
If somehow Britain did decide pursue Megaroc and manage to send a man on a suborbital spaceflight in the early 1950's what would the global reaction have been?
Would we have seen a reaction similar to Gagarin's first flight or the Sputnik crisis or perhaps even disinterest?

Even the proposers of Megaroc estimated it would take years of development to take Megaroc from proposal to reality. How different would the actual rocket have been from the original proposal and might this refined version have perhaps allowed Britain to achieve other space firsts such as an artificial satellite?
 
Britian after WWII was confronted by issues of developing either nuclear weapons or a man carrying space rocket, MEGAROC. Problem was lack of resources, Britain was broke after WWII and only had enough money to fund one project

They decided to go nuclear, as having a nuclear weapon put one in the big leagues as far military technology . Look what happened to Ukraine after it gave up it nukes

When Von Braun and his group ended up at White Sands to test and improve upon V2 was approached by several people volunteering to be strapped on top of V2 and launched into space

Von Braun wisely vetoed the idea When one considers the unreliability of the V2 with it tendency to explode or crash It took years of testing for the REDSTONE, basically V2 2.0 to be debugged and become one of the US most reliable rockets In 1958 Von Braun proposed PROJECT ADAM where a REDSTONE would be used to launch a modified MAN HIGH balloon gondola into space , He ran into a storm of opposition , Hugh Dryden of NACA (forerunner of NASA) compared it to the circus stunt of shotting a person from a cannon. After NASA was created at end of 1958 PROJECT ADAM was wrapped into Project Mercury to test feasibility of launching people into space Even then took tens of millions and several years work to design and test a spacecraft One needed to develop materials capable of resisting aerodynamic heating on reentry , attitude control and maneuvering the craft in space. Parachutes and recovery techniques and launch abort systems is case something went wrong on launch and host of other issues. Thats why its called ROCKET SCIENCE
 
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