Well, if anyone cares, I've done a bit more digging to satisfy my own curiosity.
Based off some uboat.net information and a couple of documentaries the rough figures are:
685 Type VIIs were built and 187 Type IXs were built. The IXs sunk about 37% of the total tonnage sunk by U-Boats.
I can't say that the other 63% can be claimed entirely by the VIIs, but considering the low numbers of IIs, XXIIIs, Xs, & etc., the VIIs can probably be said to have sunk the most tonnage.
T
Last edited by Tupolev; 06-29-14 at 12:42 AM.
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