Author Topic: Interesting data about DB601A and other DB engines (Read 633 times)

gatt · « **on:** December 21, 2001, 02:44:00 AM »

Here are some inteersting graphs and tabs I've got from Germany (sorces: CENSORED

). Right click on the URL and d/l the files:

DB601A power output graph
DB601A data
All DaimlerBenz power output

The DB601A was mounted on the C.202 and the Ki61. The DB605A1 on the 109G-2, C.205 and very early 109G-6 (the AH's one, I guess).

[ 12-21-2001: Message edited by: gatt ]

HoHun · « **Reply #1 on:** December 21, 2001, 03:39:00 AM »

Hi Gatt,

sounds like you've found some highly interesting information! :-)

Unfortunately, when I try to have a look at it, the server tells me that I'm trying to enter a forbidden area :-(

Could it be that your webspace provider Tiscali has a policy of not allowing external links to individual files in its webspace (other than the index pages)?

Regards,

Henning (HoHun)

gatt · « **Reply #2 on:** December 21, 2001, 03:57:00 AM »

Hmmmm, as posted above, you have to right click the URL and d/l the files.

niklas · « **Reply #3 on:** December 21, 2001, 05:16:00 AM »

thank you, they ´re even with old german letters, very nice.

the pdf is corrupt, i can´t open it on my HD. Are there other docs included or the same?

The pages are 21 and 22, what about the other 20 ?

niklas

gatt · « **Reply #4 on:** December 21, 2001, 05:23:00 AM »

Strange, I can d/l and open the .pdf file. Anyway, in the .pdf file there is an interesting table with the power output of many DB engines at various altitudes, even with MW50. The curves are a little simplified but very interesting.

The other pages are in the DB601A operating manual, obviously

HoHun · « **Reply #5 on:** December 21, 2001, 06:10:00 AM »

Hi Gatt,

>Hmmmm, as posted above, you have to right click the URL and d/l the files.

Thanks, if I do it that way, it works. I never knew there was a difference between browsing and downloading a file that the server could detect to block my request!

Anyway, thanks for the graph! The PDF file works fine for me, too.

Do you have any dates for the DB601A documents? The German caption mentions that the supercharger was improved for better altitude capabilities, resulting in rated altitudes increasing by 500 m, but the graph still shows the old supercharger (with the difference mentioned in the caption).

It would be interesting to know exactly when the supercharger was changed.

Regards,

Henning (HoHun)

gatt · « **Reply #6 on:** December 21, 2001, 07:16:00 AM »

Hi HoHun, the operating manual is mid 1940: "LDvT 506, Betriebs - und Wartungsvorschrift, 1940"

Tilt · « **Reply #7 on:** December 21, 2001, 07:40:00 AM »

Thx

Pardon my ignorance but what was the base fuel octane equivilent for those figures....?

Tilt

Vermillion · « **Reply #8 on:** December 21, 2001, 10:30:00 AM »

Thanks for sharing Gatt !

HoHun · « **Reply #9 on:** December 21, 2001, 11:59:00 AM »

Hi Tilt,

>Pardon my ignorance but what was the base fuel octane equivilent for those figures....?

Judging from rated powers published elsewhere, most of the power curves are for standard 87 octane or, in fewer cases, 96 - 100 octane fuel.

The DB601 series engines typically ran on 87 octane, one exception being the DB601N which is not listed in the comparison. (The DB601R of course ran on special record fuel.)

The DB605 series typically ran on 87 octane fuel, too, though apparently the DB605DC was meant for either MW50 injection or 96 octane fuel. I'm not sure whether it needed 96 octane for full power output, but I don't think so since the MW50 acted as anti-detonant anyway. An intersting engine missing from the comparison is the DB605L with a special high-altitude supercharger.

The DB603 series seems to have been designed for 87 octane as well, and as far as I know, all of the DB603A, the DB603E and the DB603LA actually were employed with 87 octane. I'd never before heard about the DB603N, so I can't comment on that one.

Regards,

Henning (HoHun)