[PMoz99]

The T models had a larger wingspan, but it's not always that easy to pick up unless you have something to compare it to.
The T-1 also has an arrestor hook for carrier ops, but this was deleted on the T-2, which is what Jakobi flew.
Apparently only 7 of the 70 T's built were T-1's, and some of these may have been updated to T-2 spec. Not sure how reliable this info is.
Peter