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Helicopter main rotor blade length and Torque gauge

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109
Country
newzealand
Hi all

I am modifying an air file with aired. The airfile I have is based on the stock 206. I am tweaking a freeware MD500e airfile. With aired I have changed the number of main blades from 2 to 5 and the tail rotor from 2 to 4 and edited the empty weight to the MD specs which is 1517lb.
The new airfile works and the added bonus is the rotor start up and shut down is more realistic than the standard one.
But when I went to change the Main rotor and tail rotor to the length of the MD500 blades length I noticed the torque gauge would not increase pass 70 even with full collective up

Is there a setting in the air file that needs to be adjusted as well for the torque settings

Regards

Rhys
 
Hi, which sim are you talking about? However helo's airfiles are not so accurate in term realistic outputs. Instead of using real values for all the entries, it's better to change some of them leaving the rest as it is. And try to understand if your model get close to the real one as you would expect. It's a compromise.
For instance, if you would create a left yaw torque (i.e. in clockwise spinning rotors) you have to increase the rotor drag parameter over 0.009 (default Bell 206) !! That is not expected according to the phisic, but it lets you understand that the helo airfile equations are not so accurate in term of modeling a helo.
 
Hi, I have Fsx Sp2 so I don't know about SE. I changed several parameters in my helicopters too. You could play with the power value in aircraft.cfg sections, but i've never seen improvments for this. A change in bleed number and lenght will modify the lift as well. You could leave the lenght as it is if this makes issues in your torque gauge reading, and increase step by step the "main rotor section lift coeff" that is 2.5 in default B206.
 
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