You need to be able to measure the vertical angle of X from your horizon, and for this you need a Sextant.
22.
It had a rotating telescope for measuring horizontal and vertical angles and able to take sights on prominent objects at a distance.
23.
The "'belt problem "'is a mathematics problem which requires finding the length of a crossed bitangent line, the vertical angle, and congruent angles.
24.
Due to the arrangement of the receiver antennas, the sensitive area had a number of side lobes that allowed reception at multiple vertical angles.
25.
Because slant ranges to level terrain vary in vertical angle, each elevation of such terrain appears as a curved surface, specifically a hyperbolic cosine one.
26.
As the aircraft approached the target the vertical angle would increase, and the bomb aimer would account for this by rotating the sight downward progressively.
27.
Once the surveyor has taken the three vertical angles to the tree's top, the slope distances and angles between the three viewing stations is taken.
28.
In 2008 the project is first supported by Dassault Syst�mes with the Colibri " because it would perform a vertical angled take-off like a hummingbird.
29.
The windshield is wrap-around and very deep and steeply inclined for the era, while the A-pillar has a much more vertical angle, providing excellent driver visibility.
30.
As we were going down at an almost vertical angle, I was slipping in and out of consciousness, and I asked him to talk to me.
