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For sake of discussion, let's say that what is noted in the title happens. Waht are the RR's options, RAF's options, Allied options past 1939?The heads were trash but was the whole engine?
The Ramp heads showed up on the Merlin B, the first two prototypes did not have them, we are also using the retrospectoscope as we KNOW what worked and what didn't
Now in 1933-36 nobody knew how soon or even if 100 octane fuel would get there. They knew it existed, they knew it was possible and in 1935 they knew it cost about 10 times per gallon what 80 or 87 octane fuel cost. Maybe they could get the price down but until the price came down a LOT it was not a commercial fuel. They had 87 octane (and not every country used quite the same 87 octane).
going from 885-955lb Kestrels to 1600-1800lb Griffon X (experimental) is a stretch.
For RR ant the British in general - from the late 1935 on. For the Allies in general - 1939 and on.Perhaps Allison's V-1710 to the rescue?
Also, what time frame are you looking at, Tomo?
For RR ant the British in general - from the late 1935 on. For the Allies in general - 1939 and on.
RR should go on with Buzzard+/derated R/'crude Griffon'. Going conservative, 1-stage 1-speed S/C, perhaps having about 1200 HP at 16000 ft, weight 1500-1600 lbs? 1500+ HP on 100 oct fuel?With the Peregrine you have to redesign the Spitfire/Hurricane to be smaller and only carry 4-6 guns, Defiant won't work at all. Battle ??? two Peregrines? Whitley is doomed and the list goes on.
With Vulture you need to redesign the Spitfire/Hurricane to take a 2400lb engine. Basically design a Tornado/Typhoon equivalent and have in production in late 1938/early 1939.
A Hurricane with Pegasus engine would go far to rival the French for ugly
Use 24 cylinders when 12 will do? What are we, Napier?Rolls Royce Exe.
Perhaps Allison's V-1710 to the rescue?
Timing it all off.In what way?
Allison steps up to supply the RAF with V-1710s?
Rolls-Royce adopts the V-1710 design and then develops it to their needs?
Why not?In what way?
Allison steps up to supply the RAF with V-1710s?
Rolls-Royce adopts the V-1710 design and then develops it to their needs?
Why not?
It happened with the Merlin/V-1650.
The V-1710 redesign in 1936 saw a performance and reliability increase, as well as a higher horsepower output of 1,000 at 2,600 rpm during it's 1937 150 hour acceptance test.
It's entirely possible that had Britain adopted the V-1710, they would have addressed the supercharger issue like they did historically with the Merlin.
Nothing you're say changes my belief that a Peregrine could be fitted to a Spitfire ala Jumo210 was fitted to a Bf.110 while Daimler-Benz got their act together on the 601. Peregrine-Spitfire and/or Peregrine/Hurricane buys RR time to redesign the Buzzard/de-rated R/Griffon I into the historical RR "big-block" V-12.The Spitfire prototype weighed 5,875lbs loaded.
It carried 1585 lbs of "load" which leaves 4290lbs. empty with cooling fluid.
The "Power Plant" of engine, prop, cooling oil, fuel tanks, exhaust pipes etc was 2,035lbs.
We can do a rough estimate of the Peregrine or other other engine just based off the horsepower. 2 lbs per hp seems fairly close.
Better props weigh more
Yes the later Spitfires weighed more but in the prototype stage a major engine change can often call for starting over.
The Historical timeline of the Merlin and V-1710 is fairly close.So Rolls-Royce gets the V-1710 to develop?