Jumo 210 questions

Discussion in 'Engines' started by Denniss, Dec 22, 2006.

  1. Denniss

    Denniss Active Member

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    I'm looking for Jumo 210 specification, there are some available in the net but they do not agree well on the specifications except for the existing engine models.

    What I have seen is there were several major types with some of them having a subtype.
    Jumo 210 A, often reported to be rated at about 610PS
    Jumo 210 B/C, often reported to be rated at about 640PS
    Jumo 210 D/E, often reported to be rated at about 670PS
    Jumo 210 Da/Ea, reported as D/E with two-speed supercharger and about 680PS
    Jumo 210 G and Ga, fuel-injected version of Jumo 210D, the Ga is often reported as G with two-speed supercharger, about 730PS

    Jumo 210 C, E and Ea are geared to slower propeller speeds, similar to what DB did with B/Ba-version of DB 601A/Ba

    Questions:
    Is it true the 210D had a single-speed supercharger and the 210 Da a two-speed ?
    ->The B-1 captured in spain was reported to have a two-speed supercharger but is most often listed only as Jumo 210D.
    Are 210D and 210Da the same engine with only some minor differences, maybe the ability to mount an engine cannon ? Or does the little a means "ausländisch" (foreign) = export model?

    If the power settings are true is it safe to assume they are take-off power at sea level ?
    -> At least the Jumo 210D or Da have 680PS take-off power as I've seen a chart from a Bf 109B manual but without specifying the engine model.
     
  2. Denniss

    Denniss Active Member

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    This is the chart said to be of a Bf 109B-1 with Jumo 210D (or Da?) I had on my HDD, sadly I've lost were I found it.
     

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