Navy intelligence was unimpressed with the attacks and the flimsy evidence produced. They graded each of the attacks “G—No Damage.” But, Chatterton could see as he read the reports, postwar assessors soon changed the grade from “G” to “B—Probably Sunk.” “Why would they have done that?” Lander asked. “I’ve seen this before,” Chatterton said. “The postwar assessors were scrambling to account for lost U-boats. One of those U-boats was U-869.
