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Glenn’s Computer Museum

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Figure 1
Figure 2

B-2 Torpedo Director (Douglas A-20)

This is a "torpedo director" used on the WW II Douglas A-20 bomber. According to the Douglas A-20 Havoc Pilot's Operating Instructions (which we have), a torpedo director "is an instrument operated by the pilot to help him approach a moving target in such a manner that the torpedo will intercept the target on its course." The computation mechanism of the B-2 is simple, but it does compute in a way. On the right is the first page from the 1945 patent for the B-2, which describes the operation of the B-2.