Author Topic: Dora-9 MW 50  (Read 3029 times)

Offline Buzzbait

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Dora-9 MW 50
« Reply #30 on: March 08, 2001, 12:12:00 AM »
S! Niklas

This will be my last comment on this issue:


First of all in your last post you are defacto admitting that the MW-50 option does not give 400mph at S.L.  It is only with this other "field modification/experimental supercharging" that the better performance is attained.  Obviously this other option of using C3 fuel with a different supercharger boost had the potential of improving the power output.  (although the Germans would STILL have used MW-50, methanol/Water injection to improve power with the 93 octane fuel if this was a finalized production version.  U.S. fighters like the P-47 used Water injection and they ran minimum 100 octane fuel, so there is no question that it could have been used.  It wasn't.)  But C3 was not available in quantity in '45, and what there was available was given over to the DB605DSCM's powering the 109K.

You refer to 2100 horsepower.  That is what you get with the MW-50 kitted 190D-9.  1700 is what was produced by the standard Jumo 213 WITHOUT MW-50.  As we all know from the U.S. and British tests of the D-9 postwar without MW-50, 1700 hp gives a performance of 357mph at S.L., 426mph at best alt.

On the other hand all the other test info I have seen shows that MW-50 = 2100hp = 379mph/440mph

Which is pretty damn good performance.  Trying to jack up the performance figures with last minute unofficial modifications is not entirely credible.  If we were to allow those types of performance increases, then why not have all the P-47's run like Bob Johnston's, with 72 inches of manifold pressure?  After all, that was ALSO a very common field modification.  (probably much more common actually) As were improvements in the P-51D's output through hotrodding.

Offline Naudet

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Dora-9 MW 50
« Reply #31 on: March 08, 2001, 01:59:00 AM »
According to the book "JG26 - Top Guns of the Luftwaffe", the FW190D9 used C3 till the end of the war and they were equited with MW50 too. The Dora came of the production line with MW50 installation right from the beginning of its production run.

Offline niklas

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Dora-9 MW 50
« Reply #32 on: March 08, 2001, 03:35:00 AM »
buzzbait i think you´re right and i´m completly wrong

niklas