Anybody have a good site for finding appropriate angles of depression for commercial airplanes? PLEASE SITE!?

Question

NEED IT TONIGHT! PLEASE!

Answer 1

I hope this is in time.  You will find several sites here to reference, http://www.google.com.sg/search?hl=en&q=...

Some are pdf files so I can't down load them for you.  Bear in mind this is baic Trig and the formulas require more information such as height, distance and possibly azimuth, to find angle..  'Commercial aircraft' isn't an element.  It applies to any aircraft.

Answer 2

What is an angle of depression?  Where did you hear this phrase, and what is the context?  Is this a school assignment?  What more can you tell us?  Please help us to help you.  Thanks.