I've seen this both ways with almost equal frequency. The IL-2 manual spells it "Lotfe", as does the training track. Various forum posts and level bombing manuals spell it "Lofte". If you get in the He-111, sit in the bombardier's chair, and look down at it, it has a placard bearing "Lofte" on it. Google gets lots of hits either way.
It's driving me nuts!Which is correct?
BTW: I'm talking about the German bombsight in the He-111 and the Ju-88, in case you don't know.