42+ F-16A/B Block 1 Background. Its camouflage is identical with the american fs36270, fs36118, fs36375. These initial aircraft were externally identical as the production improvements were mostly internal.

F-16A/B Block 5/10 Conversion set (for Hasegawa 1/48) from modellingplanet.com

There are several versions serving in 24 air forces; Block 15 was the first phase of the msip effort, and was also referred to as msip i. These initial aircraft were externally identical as the production improvements were mostly internal.

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Its camouflage is identical with the american fs36270, fs36118, fs36375. Various modification standards within the same block numbers are identified by an added letter e.g for example block 15a, 15b etc. Early blocks (block 1/5/10) featured relatively minor differences between each. Most were later upgraded to the block 10 configuration in the early 1980s.