1.1.3 Fuel burn to high?

Locked
matpietsch
Posts: 268
Joined: Sat Dec 21, 2019 10:02 pm
1.1.3 Fuel burn to high?

Post by matpietsch » Tue Apr 14, 2020 1:14 am

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.

Taguilo
Posts: 658
Joined: Sun May 11, 2014 11:49 am
Re: 1.1.3 Fuel burn to high?

Post by Taguilo » Tue Apr 14, 2020 2:06 am

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:

Sprite 7.jpg
Sprite 7.jpg (394.29 KiB) Viewed 732 times
Sprite 21.jpg
Sprite 21.jpg (245.8 KiB) Viewed 732 times

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


Tomas

matpietsch
Posts: 268
Joined: Sat Dec 21, 2019 10:02 pm
Re: 1.1.3 Fuel burn to high?

Post by matpietsch » Tue Apr 14, 2020 3:00 am

Hi Tomas,

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


Locked

Return to “K.A.350 Support Forum”