Performance of the Fw 190A on the Deck?

[Holtzauge]

Originally Posted by Harri Pihl

Please, check again my calculation:

9680lbs => V = 566,368km/h
10280lbs => V = 564,887km/h

So the speed at higher weight is lower, therefore thrust is higher, despite constant power, because:

T =(n*W)/V


9680lbs => T=7168,014 N

10280lbs => T = 7183,721 N

Note that in both cases T = D.



Please check the calculation again:

At 9680lbs:
drag lower
thrust lower
speed higher

at 10280lbs:
drag higher
thrust higher
speed lower

Hi Harri,

I do not have the P51B model up and running in my C++ simulator but I just ran the P51D with the weight numbers you use and the 67" boost engine I got modelled. The numbers I got at S/L were:

9680 lb > 552.88 Km/h
10280 lb > 551.45 Km/h

This gives a staggering speed difference of 1.43 Km/h which compares rather well with the 1.48 Km/h speed difference calculation you made above

BR/Holtzauge

BTW: Try not to be offended by Crumpps personal attacks since that's his signum when losing the factual battle