The SDK documentation says NAV GLIDE SLOPE is the glide slope gradient. That
is exactly what I was looking for, but I don’t understand its value. Flying at
LEPR, landing on runway 17 (ILS 109.900), I saw the value is 6174 for a glide
path that is 2.7°. I was expecting something like 2.7 (in degrees) or 4.715%
but I read 6174. Did i do something wrong with the units? Thank you

Don’t know if this will help, but usually these numbers are 16 bit or 32 bit
number, so the units are gradient. 6174/65536*100 = 9.4207 and dividing this
by 2 (which I think is a bug - but don’t know) gives you 4.71% gradient.
ASOBO?? see simvar units angl16 and angl32

Hello @ericmarciano You probably want to use the NAV RAW GLIDE SLOPE
simvar that returns the angle in degrees instead. The NAV GLIDE SLOPE
simvar returns a number computed as sin(slope) * 65536 * 2. Nothing in the
FSX code is explaining why it’s computed that way and the old doc just says
it’s a gradient. @Nocturne FYI Regards, Sylvain

That’s perfect, thanks for the answer.

Can this info be added to the SDK, any other *2 variables?

That’s why I tagged Nocturne, our tech writer. We will make sure to mention
that in the documentation. I am not aware of any other variable like this but
if you have other simvars in mind that you want information on, feel free to