When to add anti icing to jet a1 f35 Fuel ?
Does anyone have a simple rule as to when anti icing has to be added to the fuel ?
Ie below x'c ?
I have read the flight manual which indicates oat <15'c if water concentration is > 30ppm.
Not needed if water <30ppm (-15'c <oat<0'c)
So having read the q8 fuel spec sheet that I received with the fuel It doesn't actually tell me the water ppm....
And what if you uplifted fuel at an airport/airfield How would you find out water ppm ?
Just wondering if there is rule of thumb on the side of caution ?