[Rockin Robbins]

Originally Posted by Aktungbby

GADZOOKS! My mistake!I do recall reading, decades ago?, an account of WW II submarining involving use of the is-was but did not grasp it's backup to the TDC function.(Run Silent Run DEEP?) I completely overlooked the op's target length issue... http://www.subsim.com/radioroom/showthread.php?p=434901#post434901 http://www.gizmology.net/sliderules_mancomp.htm

Got enough doo-dads on that there periscope? I wanna hang my rabbit's foot on there.

Oh, yeah, you hit it right on the head. Ed Beach explained the use of the is-was in combat with the TDC in Dust on the Sea, the second book of his Run Silent Run Deep trilogy. What great books for learning how to run a boat! They go way beyond fiction to be required reading for World War II sub enthusiasts. They teach you to think like a sub commander.