Late Jumo 213s power?

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tomo pauk

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Apr 3, 2008
Apart from the Jumo-213A, is there an source (easily obtainable :) ) about the capabilities of the later versions of the 213? I'm looking after something really better than the Wikipedia entry.
 
I just love to answer to my posts :)
Here is what I've been able to gather so far, trying to replicate the curves from a chart found at Kurfurst's site. The line depicting the 213A lacks MW-50 part, found on another chart that shows slightly different (bigger) power values for that engine.
 

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The first should be of a Jumo 213E, the second of a Jumo 213A with 1900PS base power (boost pressure increase), please ignore the bump to 2250PS as this was only possible in the 213AG..
 

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I seen no reason that the Jumo 213GA and its 2240hp wouldn't have entered production. There was also the Jumo 213F (two stage supercharger), Jumo 213E (with intercooler) and Jumo 213EB with enlarged valves and the Jumo 213J (4 valves). I've seen the Jumo 213J quoted as expecting up to 3200hp but it was initially expecred to be 2350hp takeoff with B4/87 octane (would be more for WEP) and 2600 with WEP or C3.
engine | piston-engine development | air-cooled radial | 1945 | 2394 | Flight Archive
 
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Thanks for the input :)

3200 HP? A nice quote from a reliable source would be needed. Otherwise, don't think so. Napier Sabre was capable to make 'just' 3000 HP, water injection, 150 oct fuel (or 130?), while making circa 3800 rpm. 12 cylinders were no match for 24, engines having comparable swept volume.
 
I seen no reason that the Jumo 213GA and its 2240hp wouldn't have entered production. There was also the Jumo 213F (two stage supercharger), Jumom 213E (with intercooler) and Jumo 213EB with enlarged valves and the Jumo 213J (4 valves). I've seen the Jumo 213J quoted as expecting up to 3200hp but it was initially expecred to be 2350hp takeoff with B4/87 octane (would be more for WEP) and 2600 with WEP or C3.
engine | piston-engine development | air-cooled radial | 1945 | 2394 | Flight Archive

I'd like to know if the RR Griffon would have been able to reach this level of power.
 
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That's the version which dominates Reno air races starting in 1946. 8)

The DB605D engine produced 2,000 reliable hp during October 1944. IMO a fully developed military grade DB603 or Jumo 213 equivalent should produce about 2,500 hp.
 
The DB605DC and ASC were producing 2000PS but this rating was permitted only in 1945 after reliability problems had been cured. Boosted 603/213 were already producing 2200+ PS in 1945.
 
According to Lumsden, the Griffon 57A was capable of 2500hp at takeoff (dry), 2030hp @ 1750ft and 1830hp @ 10,000ft.

The Griffon 65 1900hp @ take off (+18psi), 2005hp @ 6000ft (+18psi) and 1810hp @ 20,500ft (+18psi) - all with 100/130 fuel. With 115/145 fuel teh Griffon 65 made 2300hp @ 650ft (+25psi).

Griffon 101 was rated at 2440hp @ 6000ft, 2300hp @ 15,750ft and 2085hp @ 23,000ft "maximum climb".
 
Bear in mind that Junkers would probably produce their first turbo prop engine during 1946. When that happens RLM will quickly lose interest in piston engines.
 

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