Shooting qualifications rate from the lowest, sharpshooter, to marksman and expert, and essentially involve a short target course of about 70 meters, and a longer course of 250 to 300 meters, Army officials said.
12.
The crew consisted of six men : a driver, an aimer for azimuth, an aimer for elevation, a sight adjuster for target speed and range, a sight adjuster for target course and dive angle, and a loader.
13.
When angle on the bow was less than 90? the submarine would continue a submerged approach toward the target to launch torpedoes when angle on the bow increased to 90?indicating the minimum range torpedo launch opportunity for the submarine with the given target course and speed.
14.
During combat, the actual course of the target was not usually determined but instead the skippers determined a related quantity called " angle on the bow . " Angle on the bow is the angle formed by the target course and the line of sight to the submarine.
