Size comparsions:

78' Higgins - 29.25" Length in 1:32 Scale

Schnellboot - 43.125" Length in 1:32 Scale

At first on the paper it seemed to be in similar sizes but in the last post where top view of both Higgins and Schnellboot are side by side. Now thats a bigger difference than I was expecting...

*Note*
This build thread would be in 1:32 Scale but while I'm doing the template works, I wanted to have 1:20 Scale later in the future so thought I'll save myself time and do both templates in 1:32 and 1:20 now. On the paper it shows that I need to do 160 percent enlargement off 1:32 templates to get 1:20 scale which I'm doing off Cannon Copier that I picked up for myself couple years ago.

Higgins: 46.8" Length (1:20)
Schnellboot: 68.8" Length (1:20)

Shown is the difference of Higgins Template #1 in 1:32 and 1:20 Scale...