Originally Posted by
Hueypilot
The WC-130Hs started out as E-models and were modified into HC-130Hs before being further modified into WC-130Hs.
They are basically Super Es. They have many of the sub-systems of the E (GTC/ATM, etc), but have the -15 engines of the H.
OK, so it left Marietta as an E. Thanks for the clarification. All the sources I saw listed that serial number as an "H" and I took that at face value.