Blackbird Sims / Milviz Forum Archive

I did some flight with 1.1.3 now and one thing I noticed is that the fuel burn is always a bit higher then published in the tables of Ken.

For example I am just performing a flight >14,000 lbs with 1500 rpm props and ~62% torque at FL280. ISA -1 °C and SAT -41°C.

From what I understand my torque should be around the 70% range but then I would exceed the ITT limit of 785 °C.

To the fuel burn: With the above settings I burn 360 lbs/hrs on each engine. That adds up over a longer flight. I constantly exceed my fuel calculation and the ones made by Simbrief to double check.

Hi,

Are you in SP1? Because I just did a quick test with similar values (torque a bit high) and all numbers where spot on in reference to the official tables.

Please see the images:


No matter that, numbers of FFLow, Speed and Torque may differ by a regular 3-5 % in different situations.


Tomas

Hi Tomas,

I am on SP1 yes. MY fuel burn was about 360. So that is what made me wonder.