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Old 07-18-2011, 06:35 PM
-=MadCat=- -=MadCat=- is offline
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Join Date: Aug 2010
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Hi everybody!

My apologies if this has been posted before or this isnt the correct thread.

I found a mistake in the fuel consumption, or the ammount of supplied fuel, for the P-51D-20NA.
I did a lot of testing in that direction today and found out the following.

All tests have been done with beeing static on the runway, Manifold Pressure at ~51" and rpm at ~2600.
Through all the tests I found the auxiliary tank aft of the cockpit to be the most reliable, so I will use that one as reference.

According the the Pilot Training Manual of 1945, the P-51 had an 85gal auxiliary tank aft the cockpit and one 92gal tank in each wing, giving it a total caapacity of 269gal without any drop tanks.

In my tests the aft tank was always emptied in ~50 minutes, giving it a consuption of ~1,7gal/min. With 100% Fuel and no drop tanks the main wing tanks were emptied in ~90 minutes, giving them a combined in game capacity of ~153gal. That makes them lack ~15,5gal each compared to the real plane.
Moreso the drop tanks consistently emptied within ~57 minutes, making a combined capacity of 96,9gal. The arming screen claims its 2 x 75gal what makes a difference of another ~53,1gal.
In total, with 100% fuel and 2 x 75gal drop tanks selected, the in game P-51 is actually short of ~84,1gal fuel.
That's an entire auxiliary fuel tank!

Some may now say its a minor issue, i'd call 84gal not minor. That's an entire auxiliary fuel tank!
Though i have no idea if its a limitation of the game engine or just incorrectly modeled, but it would be great if it could be fixed.

And as a side note, I'd love to see the 110gal drop tanks and the wing hardpoints getting a little more pretty and also permanent, like those of the P-47. ^^

Thanks to all who were willing to read this rather long post !!!
If more information from those tests would be required, i wrote it all down, just ask.


Greetings to all
-=MadCat=-
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