TACTICS. 814 TACTICS. grees with the direction in which they are steer- ing as in Fig. 3. Evolution. The combination of movements by which a fleet is changed from one formation to another. Flank. The sea to the of ships when in a particular formation. In compound formations each part has its own line of bearing. Movement. One of the component 2". Position. I'?' Position Fig. 11. ' equADBOM, coluhn biobt.' right of the fleet is called the right flank; that to the left is called the left flank. For- mation. The particular arrangement of the fleet. Simple formations are column, line, |6 .7 Is FlO. 12. ' SQrADBON. COLUMN BiaST, TWELVE P01ST8.' echelon, etc. Compound formations are double column, line of division columns, etc. Front, The direction in which the fleet is steaming ex- cept when obliquing. The battle front is the
1 1 ( 1^ (
e s 4 3 i ' i ' 1 i Fig. U. 'FORM column, right VEPBEL FORWARD. OTHER VES- SELS RIGHT OBLIQUE.' parts of an evolution. A movement is simul- taneous when all ships execute it together, and successive when executed by each ship or group ( 1. Fig. 13. • TE8BELB, EIGHT ABOUT ' (EXECUTED FROM LINB). direction of the enemy. Guide. The ship desig- nated as the one upon which the formation is ar- ranged for alignment and distance. Interval. The distance between divisions or squadrons when in compound formation. Line. A forma- tion in which the line of bearing of the ships is at right angles to the direction in which they are steaming. Line of bearing. An imaginary line passsing through the centres or foremasts le '17 I't I I* f V Fig. 15. ' BQUADROH, COURTEB- MABCH.* of ships in turn. Oblique. A change of course of less than 90 degrees. The ordinary oblique is three or four points. Order. The arrangement
