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You need a lot more P-40F being produced. AFAIK they all got sent to the MTO. Alternately, you need a lot more 2 stage R-1830's being produced installed in Vultee Vanguards then sent to the PTO.Same drill as before - a much improved USAAC/AAF between 1938 (where the canges start at drawing boards and, possibly, wind tunnels and test benches) and 1942. What improements can be gotten using technology, aerodynamics, electronics and fuels of the day? Organization and logistics changes? Improvements in 'producibility' category and ease of use/maintenance? Guns/bombs/rockets?
Packard V-1650 first run in 1938, not summer 1941. Mass production begins summer 1939.Same drill as before - a much improved USAAC/AAF between 1938 (where the canges start at drawing boards and, possibly, wind tunnels and test benches) and 1942. What improements can be gotten using technology, aerodynamics, electronics and fuels of the day?
That should do it.You need a lot more P-40F being produced.
Overall, I think the USAAC/USAAF was doing pretty well, except for close-support, which was more a problem of practice and doctrine than hardware, and liaison/observation aircraft.
Because there was a massive commercial aviation industry, which made what were easily the most advanced passenger aircraft, the USAAC/USAAF could easily get just about all the transport aircraft it would need pretty much off the shelf.
You need a lot more P-40F being produced. AFAIK they all got sent to the MTO. Alternately, you need a lot more 2 stage R-1830's being produced installed in Vultee Vanguards then sent to the PTO.
Packard built 45 V-1650 engines in 1941, 26 of them in December. In April of 1942 they built 505 and in July they were at 800 a month. Without an actual miracle ( parting clouds, shining lights and voices from on high) things weren't going to go much faster.Packard V-1650 first run in 1938, not summer 1941. Mass production begins summer 1939.
Not a miracle. Just have Packard start earlier. Rolls Royce first ran the Merlin in 1933. Let's get Packard making their first running engine six years later in 1939. Seems doable.Packard built 45 V-1650 engines in 1941, 26 of them in December. In April of 1942 they built 505 and in July they were at 800 a month. Without an actual miracle ( parting clouds, shining lights and voices from on high) things weren't going to go much faster.
Not a miracle. Just have Packard start earlier. Rolls Royce first ran the Merlin in 1933. Let's get Packard making their first running engine six years later in 1939. Seems doable.
No because Packard TRIED to get a license to build the Merlin in 1938 and RR flat out refused.It's certainly physically possible, but would the UK and Rolls-Royce consider allowing it?
Not a miracle. Just have Packard start earlier. Rolls Royce first ran the Merlin in 1933. Let's get Packard making their first running engine six years later in 1939. Seems doable.
Please remember that 1939-1941 US 100 octane fuel is not the Same as British 1939-1941 100 Octane fuel. 12lbs boost may not be possible with American fuel?
P-40B had an engine good for 1040hp at over 14,000ft, a 1030 hp engine at 16,250 isn't going to show a huge improvement.
P-40B performance figures are for a 6835lb plane, unfortunately, even though that is 490lbs under normal gross weight. Normal gross weight is with 120 US gallons of fuel.
Sticking a Merlin III or XII in a 7300lb plane is not going to get you an American Spitfire. Cutting the .50 cal ammo to 200rpg and wing gun ammo to 400 RPGs is only going save about 120lbs. Take out another 15 gallons of fuel, for another 90bs, use only 160lb pilots?
Not by much, the same basic supercharger used on the -33 Allison was used on the later ones that got 1150hp at over 15,000ft. A usable set of 9.60 gears (or something in between the 8.77 and 9.60 gears) would have given the 1040 hp a few thousand feet higher (at the cost of power lower down).In 1939-40 and on American 100 oct fuel, a Merlin III will beat the V-1710 due to a bigger S/C and lower CR.
I've never said it will be a huge improvement, just that it will add perhaps 10 mph and enable it to climb better at higher altitudes. I'm not after the American Spitfire, but after improving the odds of American and Allied airmen in early 1940s.
Not by much, the same basic supercharger used on the -33 Allison was used on the later ones that got 1150hp at over 15,000ft. A usable set of 9.60 gears (or something in between the 8.77 and 9.60 gears) would have given the 1040 hp a few thousand feet higher (at the cost of power lower down).
Adding 100-200fpm to the climb is't really going to change things much. you need a much larger change to really affect combat performance/results.
Packard signed their licensing agreement in September 1940, so as I see it, maybe such an agreement could have been signed in September 1939 for the Merlin X for first deliveries in late 1940.All true, but the point is until Hooker puts the better intake on the Merlin supercharger it is being choked by the inlet and the total package doesn't offer much improvement over the Allison. Since very few people knew the difference there is no "AH HA" moment where somebody could point to the Merlin II/III in 1938/39 and say "you know, if we licience this engine and straighten out the supercharger intake we could have real world beater in a couple of years" The Allison supercharger in 1939 was within a few percent of the Merlin supercharger as it existed in 1939.
All true, but the point is until Hooker puts the better intake on the Merlin supercharger it is being choked by the inlet and the total package doesn't offer much improvement over the Allison. Since very few people knew the difference there is no "AH HA" moment where somebody could point to the Merlin II/III in 1938/39 and say "you know, if we licience this engine and straighten out the supercharger intake we could have real world beater in a couple of years" The Allison supercharger in 1939 was within a few percent of the Merlin supercharger as it existed in 1939.
Packard signed their licensing agreement in September 1940, so as I see it, maybe such an agreement could have been signed in September 1939 for the Merlin X for first deliveries in late 1940.