Author Topic: BMW801D2 Horsepower at 1.62ata  (Read 9114 times)

Offline Crumpp

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BMW801D2 Horsepower at 1.62ata
« on: July 27, 2004, 07:11:49 PM »
Anybody have anything on the amount of Horsepower the BMW801D2 produced at 1.62ata at 2700U/min?

I have a BMW801 manual from May 1942, all the Flugzeug-handbuchs for the 190A series, and Several NACA test's on the BMW801D2 motor.

All list the Horsepower as 1870hp at 1.42ata at 2700U/min.

What was it at 1.62ata?

Crumpp

Offline MiloMorai

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BMW801D2 Horsepower at 1.62ata
« Reply #1 on: July 27, 2004, 07:31:31 PM »
performance curve graph for BMW 801D s/n 9-801:5401, dated 10-7-42, says 1820PS (maximum), @ 1.42ata @ 2700rpm @ 750-760m

exhaust thrust @ 2700rpm - 120kg @ 5650m

Offline Crumpp

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BMW801D2 Horsepower at 1.62ata
« Reply #2 on: July 27, 2004, 07:41:29 PM »
Thanks Milo!

Quote
Anybody have anything on the amount of Horsepower the BMW801D2 produced at 1.62ata  at 2700U/min?


Got that info.  PS is NOT Hp.

Crumpp

Offline MiloMorai

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Re: BMW801D2 Horsepower at 1.62ata
« Reply #3 on: July 27, 2004, 07:49:30 PM »
Quote
Originally posted by Crumpp


All list the Horsepower as 1870hp at 1.42ata at 2700U/min.



The graph shows ~1780HP so why did you state 1870hp?

typo error on your part or is the graph in error?

Offline Crumpp

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BMW801D2 Horsepower at 1.62ata
« Reply #4 on: July 27, 2004, 08:08:23 PM »
I've got several NACA graphs.  All show the standard 1800hp at 1.42ata NOT 1740hp.  

Pyro will see the manual were I am getting the data.

Until then, based on your past history, please get out my thread unless you can help me out with the 1.62ata question.  Your attempting to derail it.

Thanks!

Crumpp

Offline GScholz

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BMW801D2 Horsepower at 1.62ata
« Reply #5 on: July 27, 2004, 11:00:40 PM »
PS is short for Pferdestärke, literary horsepower or horse strength in English. It is defined by the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig as:

1 PS = 735.49875 W

According to the most common definition of horsepower, one horsepower is defined as exactly:

1 hp = 745.69987158227022 W

The horsepower was first used by James Watt during a business venture where his steam engines substituted horses. It was defined that a horse can lift 33,000 pounds with a speed of 1 foot per minute: 33,000 ft·lb·min-1. (This is equivalent to approximately 15,000 kg at 30 cm.)
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Offline Crumpp

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BMW801D2 Horsepower at 1.62ata
« Reply #6 on: July 27, 2004, 11:03:21 PM »
That is nice to know, thanks.  They are not the same unit of measure though between Hp and PS.

Do you have the Hp OR PS for the Bmw 801D2 at 1.62ata?  I can convert.

Crumpp

Offline GScholz

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BMW801D2 Horsepower at 1.62ata
« Reply #7 on: July 27, 2004, 11:07:44 PM »
I'm afraid I don't. Sorry.
"With the first link, the chain is forged. The first speech censored, the first thought forbidden, the first freedom denied, chains us all irrevocably."

Offline MiloMorai

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BMW801D2 Horsepower at 1.62ata
« Reply #8 on: July 28, 2004, 06:57:04 AM »
Quote
Originally posted by Crumpp
I've got several NACA graphs.  All show the standard 1800hp at 1.42ata NOT 1740hp.  

Until then, based on your past history, please get out my thread unless you can help me out with the 1.62ata question.  Your attempting to derail it.

Thanks!

Crumpp

Crumpp, get rid of the attitude.:p

If you don't like being questioned on the HP/PS at 1.42, to bad. All I want is clarification on your claimed 1870hp number, you being the expert and all :rolleyes: on the Fw190. Now, where did I state 1740hp?

This is what I have and is also from your link from the other thread.
http://www.terra.es/personal2/matias.s/bmw801d-1024.jpg

Do we believe your claimed 1870hp or what the BMW graph shows?

Offline Crumpp

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BMW801D2 Horsepower at 1.62ata
« Reply #9 on: July 28, 2004, 06:59:43 AM »
Believe what you want Milo.  Not a big deal.


Do you know the Hp at 1.62ata?

Crumpp

Offline MiloMorai

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BMW801D2 Horsepower at 1.62ata
« Reply #10 on: July 28, 2004, 07:36:08 AM »
Quote
Originally posted by Crumpp
Believe what you want Milo.  Not a big deal.


Do you know the Hp at 1.62ata?

Crumpp

Are you not the sweet one, Grumpy. Such an attitude Grumpy for a simple question of clarification.:rolleyes: Ok, I will believe that you are shovelling the stuff at us, again.

Offline Crumpp

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BMW801D2 Horsepower at 1.62ata
« Reply #11 on: July 28, 2004, 07:41:22 AM »
Stuff is copyrighted Milo.  I can't post it anyway.  Geez man, is it really that big a deal?  Worst case it could be is the info is wrong?

Please either contribute something useful, start a new thread so you can bad mouth someone, or get out of this one.


Does anyone know the Hp at 1.62ata?

Thanks.

Crumpp

Offline MiloMorai

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BMW801D2 Horsepower at 1.62ata
« Reply #12 on: July 28, 2004, 09:48:38 AM »
Quote
Originally posted by Crumpp
Worst case it could be is the info is wrong?
 


Hallelujah!!!

Now why could you not have said that at the beginning?:rolleyes: :rolleyes: :rolleyes:  Nope, Crumpp has to cop an attitude over a simple question.:rolleyes:

If the 1.42 number is wrong, what is to say the 1.62 number will not also be wrong? The 1.42 clarification question is useful in believing any 1.62 number.

What was the hp increase from 1.32 to 1.42? Say ~100hp, for a number. If the 1.62 is 2000hp, then an increase of 0.20(1.42>1.62) ata gives only +130hp using your number, while the BMW graph gives an increase of 220hp. Which do you find more believable? Do you see why the 1.42 number has to be clarified?

Anyways, I leave you to your attitude.

Offline Crumpp

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BMW801D2 Horsepower at 1.62ata
« Reply #13 on: July 28, 2004, 10:05:10 AM »
Good god,

Get out the thread milo.  Your simply trying to derail what you percieve as a threat to your favourite A/C.

Pyro can judge the info for himself and either use it or not.  Does not require your approval or mine.

Again, does anyone have any info on the Horsepower rating of the BMW 801D2 at 1.62ata?

Crumpp

Offline MiloMorai

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BMW801D2 Horsepower at 1.62ata
« Reply #14 on: July 28, 2004, 12:30:47 PM »
Not only do you have an attitude problem, you are also dilusional, crumpp. Why would a hp gain be a threat?

It is your crappy attitude that is putting this thread down the wrong road. Asked a simple  question of clarification and crumpp goes off the deep end.

Drop the crap attitude crumpp and maybe we can arrive at a 1.62 hp number, if a believable real number cannot be found.

If one knows the hp gain is from 1.10 to 1.20 to 1.32 to 1.42, then one can make a pretty good estimate to what the hp would be at 1.62. With some of the math brains here doing some calcs, it would be near enough to any real number. Would Pyro accept the number? Maybe or maybe not, but would say yes if the 'arguement' was sound. One needs a good base number to work from, though.

The discussion could have been very informative, a 1.62 hp number that could have estimated and agreed on, but no, you cop an attitude and let that get in the way.:rolleyes: so :(