I have a Kestrel
that I use to get my DA. I then put the DA into Ballistic AE which also asks me for the Temp or Mach.
Here's my question. DA is calculated as:
Pressure Altitude + [120 x (OAT - ISA Temp)]
OAT is local temperature from a thermometer.
ISA Temp is always 15 °C at sea level.
From that formula, it looks like DA includes temperature already. Why is Ballistic AE asking for Temp. again?