davebender
1st Lieutenant
Any aircraft can stand off and launch rockets including passenger aircraft such as the Ju-52 and Boeing 747. But they are hardly ideal for that purpose.
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Any aircraft can stand off and launch rockets including passenger aircraft such as the Ju-52 and Boeing 747. But they are hardly ideal for that purpose.
Shortround,
Parsfail said decision about what to produce in 1942 had to be made. They produced 1 engine per month in 1938, 8 engines per month in 1939 … per contract. In 1940, it was up to 300 per month and in 1941 it was 1,100 per month. By 1942, it was 1,400 per month.
Numbers from Dan Whitney's Vees for Victory.
If you mounted the tubes in the fuselage, what would happen to the fuselage when the rockets fired ?
While the Iron Annie might have been tough, I think that sounds like a one way mission.
That's a bit of exaggeration there dave. If the Luftwaffe was getting short of fuel before the USAAF got there, it would be because they just didn't produce enough, because no one had targeted petrol production to any serious extent up to that time.
In 1939, that would be the USAAC, less than 60 B-17s by the middle of 39, the P-40 first flew in late 38. So a American effort at bombing in 1939 would be B-18s escorted by P-35s and P-36s. That would be a sad exhibition.
Question: If Packard aren't building Merlins in 1942 is it because Packard or the US Government rejected the request from Rolls-Royce/British Governemnet?
If this is rejected, what of the Tizard mission? Will he take all his goodies (cavity magnitron, jet engine planes, other bits of British technology) back home with him?
Hi,Could R-2800 2-stage supercharging development have been improved?
While this would not have helped the P-40 or P-51, it could have been interesting to see F4U's in the ETO up high providing escort.
Not sure how the Brits could have utilized a 2-stage supercharged R-2800 w/o aircraft design changes.
Could R-2800 2-stage supercharging development have been improved?
While this would not have helped the P-40 or P-51, it could have been interesting to see F4U's in the ETO up high providing escort.
Not sure how the Brits could have utilized a 2-stage supercharged R-2800 w/o aircraft design changes.
The R-2800 looks like a great way to power post-Hurricane Hawker fighters; the installation can be akin of that of Hellcat.
Post Hurricane Hawkers either had the Sabre (which could use help) or were planned for the Centaurus. The R-2800 is about 85% the size of a Centaurus so most things being equal (single stage superchargers, same fuel, etc) the R-2800 is going to be down about 15% in power from the start. Not sure the British are going to want to invest time and money in inferior versions of the aircraft.
Shortround,
You are correct in 1940 but, in 1940, we were not at war and the Allison was exactly what was needed. We didn't go to war until December 8th, 1941, and 1942 was just around the corner, and the Allison was in mass production exactly when needed. The first Packard-built Merlin didn't run until August 1941. We STILL WERE NOT AT WAR and ethA llison was ramping up nicely.
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Post Hurricane Hawkers either had the Sabre (which could use help) or were planned for the Centaurus. The R-2800 is about 85% the size of a Centaurus so most things being equal (single stage superchargers, same fuel, etc) the R-2800 is going to be down about 15% in power from the start. Not sure the British are going to want to invest time and money in inferior versions of the aircraft.
compared the Sabre the R-2800 is down in power (but not as much) while having more drag. Not a good combination for performance even if much more reliable.
Without the two stage supercharger the R-2800 has the same problem the R-2600 does as a fighter engine, lousy performance at altitude. 1600hp at 13,500 ft in high gear Military power for the version installed in the A-26 bomber and later B-26 bomber, early versions were worse. Like 1500hp at 14,000ft in high gear. Compared to what the Merlin could put out even it's MK XX form the R-2800 single stage is a much better bomber engine than fighter engine.