Originally Posted by Larrywb57

The date is September 29th 1942. My submarine is the USS Plunger, SS-179, porpoise class submarine which is based out of Midway Island. My location is longitude 141° 46' E, latitude is 36°0' N. Weather is overcast clouds with light rain, heavy fog with wind speed of 15 meters per second from a direction of 16°. The crew is at battle stations with the radar reporting two contacts at a bearing of 63°, range is 12,000 yards. Sonar has confirmed bearing of 63° and contacts are merchant, moving slow, closing! Torpedoes are set with depth five feet, offset angle at 0, low speed, exploder at contact and doors are open. Now here is my problem. I can't set the range to the target using the Range Dial linked to the Attack Data Tool. I also can't use the stadimeter. So I setup for a 90° attack. Fired two torpedoes as the ship crossed the aiming point. My question is: how can the range be input to TDC like will sonar?