Lucky13
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Photo by EOR
This F-16C, #85-1413 which is a block 25....
....and this....
Photo by EOR
....which is also an F-16C, #87-0313, but a block 32....
For what I understand, the block 25's had an Pratt & Whitney F100-PW-200 engine but were later upgraded with a Pratt & Whitney F100-PW-200E and the block 32's had the Pratt and Whitney F-100 engine....
Now, do these two engines have the same exhaust, was there any external differences between the two blocks?
Would this one work for both aggressors?