This topic comes up fairly often. Rightfully so, since the NSAWC Vipers make such attractive models.
It's a bit frustrating, as one person will put out false info, then that info gets repeated and repeated, and then repeated all over again as if it were correct.
First of all, there's no need to discuss the small horizontal stabs because the NSAWC jets don't have them. Never did, never will. Furthermore, Jens is right--the small stabs were shorter in overall chord. Chopping off the trailing edge doesn't make them correct. Close, but not correct. The lightweight gear of the early jets are different not only in diameter, but many of the overall details.
The NSAWC jets aren't exactly F-16As, really. They are Block 15 OCUs, which were built alongside C-models on the assembly line. As a result, they share many similarities (but not all) of a C model. They are a bit of a hybrid. If you're using refs for a Block 15 F-16A, you're already behind the power curve. You need refs for a Block 15 OCU if you want to be correct. Otherwise, you're model will also be a bit of a hybrid.
Of course, if you're not looking for complete accuracy and only want a cool-looking Viper with a great camo (and that's totally OK), then build your model however you'd like. Just have fun doing it.
Smitty, since you have The Early Viper Guide, you'll be set. All of the OCU stuff is covered in there. If you have any further questions, I can send you additional pics and/or point you to page numbers where you can find the info.
Edited by jmel, 25 September 2017 - 01:22 PM.