Lambert Conformal Conic projection .

An example of aeronautical maps conic projection can lead recommended by ICAO international air navigation map of the world .

Route maps, aerial maps of the World ICAO for latitudes from 0° to 80°, written in conformal ( conformal ) Conic Lambert , who developed the theory of conformal conic , both for the world and for the ellipsoid in 1772. Kind of projection and parallel sections are in the top left or top right corner of the map .

1. In these projections, parallels the normal grid represented by concentric circles, and the meridians of the radii of the circles. The angles between the meridians of longitude are proportional to the respective differences .

2. The main feature of these cards - these projections, the angles between the directions displayed without any distortion

3. Near the parallel section of the minimum distortion , and as the distance can be up to 1 ° when measuring angles and up to 4 % in the measurement range.

4. Map scale Lambert projection on secant cone varies , on the outer sides of the map section of the parallels it bigger, smaller than the cross section of the parallels .

5. The angle of convergence s = (l₁ — l₂)sinj_aver.

6. Rhumb line is a curve When navigating a route for loxodromic way of piloting our latitudes distance between TM should not exceed 200 km .

7. Orthodromy - a straight line and has the property of the shortest distance between two points.