1.1.3 Fuel burn to high?
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- Posts: 268
- Joined: Sat Dec 21, 2019 10:02 pm
1.1.3 Fuel burn to high?
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.
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.
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- Posts: 658
- Joined: Sun May 11, 2014 11:49 am
Re: 1.1.3 Fuel burn to high?
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
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
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- Posts: 268
- Joined: Sat Dec 21, 2019 10:02 pm
Re: 1.1.3 Fuel burn to high?
Hi Tomas,
I am on SP1 yes. MY fuel burn was about 360. So that is what made me wonder.
I am on SP1 yes. MY fuel burn was about 360. So that is what made me wonder.