Spit/109 sea level speed comparisons in 1.08 beta patch

[Kurfürst]

[QUOTE=MiG-3U;463981]Please post.

Here.

Flight test.



Guranteed specs.



I would like to see similiar detailed specs for the Spitfire. At +12 lbs boost. Calibration curves, engine bench test, detailed description of airframe conditions and temperature conditions.

None such exists...

V15 chart on your site shows clearly two speed supercharger

Nope.

and text sites höhen and bodenlader,

Yes. And?

power value in the calculation is 1018ps vs 990ps for Db601A.

And have the DB 601Aa (not the DB 601A) in the sim, which had 1045 PS (1175 PS WEP) anyway. So the tested example had to reached 498 kph at 1018 PS. We have an 1045 PS variant. Are you saying that it should be even faster..?

Now, care to tell me, that regardless of the supercharger design, that what is wrong with the test, since the plane has about the same power our plane in the sim has.

All at your site.

Nope.

I also have similiar curves for G-14, G-6, G-1 etc. on my site. It only shows that the DB 60x supercharger could be run at will at fixed speeds as well. It's no witchcraft, all that is needed to override the barometric control of the hydraulic coupling. Which they did often during these tests, see some of the G-6 and G-14 tests:

http://kurfurst.org/Performance_test...44_trials.html

Besides the actual supercharger operation is completely irrelevant. We KNOW for a fact that the plane had 951 PS in high speed flight (about 50-60 PS down on power) and reached 493 kph with it (which they calculated to be good for 498 kph at the nominal rating of 996 PS). Any other 109 in similar configuration with the same power should reach the same of course.

[MiG-3U]

Originally Posted by Kurfürst

Here.

Flight test.

That is a flight test ofa prototype doing 485kmh, non standard engine and 500kmh is a calculation based on non standard power.

Originally Posted by Kurfürst

Guranteed specs.

Not a test, more like a selling brochure.

But we have multiple tests results around 470kmh.

Originally Posted by Kurfürst

Yes. And?

That means two speed supercharger, no need for large oil cooler needed for the hydraulic clutch, less drag.

Originally Posted by Kurfürst

And have the DB 601Aa (not the DB 601A) in the sim, which had 1045 PS (1175 PS WEP) anyway. So the tested example had to reached 498 kph at 1018 PS. We have an 1045 PS variant. Are you saying that it should be even faster...

I can't find a 1C source stating that, please show me.

Besides 601A and Aa power settings are obviously different, 5min power fth is lower for Aa which means higher than 1.3ata.

Originally Posted by Kurfürst

I also have similiar curves for G-14, G-6, G-1 etc..

Nonsense curves and not relevant for this discussion, the rest is just your speculations.

[Kurfürst]

Originally Posted by MiG-3U

That is a flight test ofa prototype doing 485kmh, non standard engine and 500kmh is a calculation based on non standard power.

Wrong on all accounts.

Not a test, more like a selling brochure.

And with the specs laid down within being guaranteed within +/- 5% by the manufacturer of the product.

But we have multiple tests results around 470kmh.

Really. And what power, what supercharger settings, what airframe conditions?

That means two speed supercharger, no need for large oil cooler needed for the hydraulic clutch, less drag.

Speculation.

I can't find a 1C source stating that, please show me.

Look at the source files - or the fact that we a 5-min boost pressure of 1.35 ata...

Nonsense curves and not relevant for this discussion, the rest is just your speculations.

And one more scratch on the tail...