109 e4 performance

Kurfürst · #1 10-25-2011, 09:55 PM

Official Bf 109E specifications, guaranteed by manufacturer within +/- 5%. All Bf 109E accepted by the Luftwaffe had to fulfill these specifications for acceptions within the above limits.

http://www.kurfurst.org/Performance_...chreibung.html

In short, our Bf 109Es are 40 km/h short of speed at low altitudes. FM bugs so far prevented to verify if they can reach 570 at altitude (did not test with latest patch. No TAS indicator either)

Spitliarperformance site as usual reports only speed at 30-min ratings, not maximum outputs.

#2 10-25-2011, 10:01 PM

Is this chart with Notleistung?

I am a bit confused. I currently thought that 490 should be normal speed without Notleistung. But now I have some doubts.

louisv · #3 10-25-2011, 10:39 PM

Notleistung?

OK... Got it on Wikipedia...Emergency boost.

Robo. · #4 10-25-2011, 11:40 PM

Quote:

Originally Posted by Kurfürst

Official Bf 109E specifications, guaranteed by manufacturer within +/- 5%. All Bf 109E accepted by the Luftwaffe had to fulfill these specifications for acceptions within the above limits.

I am a great 109 fan and I would like to have all the planes in the sim as close as possible to the real thing. Therefore I don't think it would be wise to get data from the manufacturer specs

#5 10-26-2011, 12:04 AM

Lol, Robo. Are you a manufacturer?

Crumpp · #6 10-26-2011, 12:09 AM

Quote:

Therefore I don't think it would be wise to get data from the manufacturer specs

That is the best standard in the aircraft industry.

That is the performance Mtt's guaranteed by contract to the RLM its airplanes would perform. If an airplane did not fall within that +/- 5% then the RLM did not pay for it or accept it as one of the airplanes it purchased from Mtt.

Each airframe was test flown before it was accepted for Luftwaffe service and it had to meet that minimum specification.

Robo. · #7 10-26-2011, 12:33 AM

Quote:

Originally Posted by Crumpp

That is the best standard in the aircraft industry.

That is the performance Mtt's guaranteed by contract to the RLM its airplanes would perform. If an airplane did not fall within that +/- 5% then the RLM did not pay for it or accept it as one of the airplanes it purchased from Mtt.

Each airframe was test flown before it was accepted for Luftwaffe service and it had to meet that minimum specification.

Alright, I think we should use the data specified by the manufacturer when they tried to get that contract then.

SG1_Lud · #8 10-26-2011, 06:25 AM

Quote:

Originally Posted by Robo.

Alright, I think we should use the data specified by the manufacturer when they tried to get that contract then.

If it is a question of credibility, between the manufacturer data and that "test" done in France, I trust more in the manufacturer's, for two reasons:

1) if you read in the detail the french test, is clear that it was done far from the conditions you want for a test.

2) I havent heard of a single LW report complaining about the manufacturer's specifications being wrong.

Cheers!

SNAFU · #9 10-26-2011, 07:47 AM

Well, manufacturers tend to stick with margins specified and use them, if they have the quality system giving them the ability to mangage the narrow gab. If 500km/h +/-5% on ground level was specified, I would expect the standard plane to leave the shops testified to be able to reach 475km/h, but not one km/h more.