Well, I haven't looked at it in a while and, right now, I'm separated from it by the Atlantic Ocean. If memory serves correctly, the crack or cracks were not very long, ran more vertical than lengthwise, & were confined between a couple of the "ribs" of the vessel.  The guy dropped my boat on solid rock but, apparently, not flat rock.  The impact was fairly localized. 2 feet by 2 feet was enough to affix the patch solidly across a couple supportive ribs (where the hull was a bit thicker) & get the job done.

I'll take a closer look when I get back home to verify.  Sounds like your damage may have been more substantial than mine, though. Could be that both an inside & outside application are warranted.

Later,

Jimbo  8-)