GP38H2 *
2100 YN4hy x-6041 . GP38H2 .
2101 YN4hy x-2622, xxL&N-4115 . GP38H2 .
2102 YN4hy x-6464, xx6368, xxxL&N-6602 . GP38H2 .
2103 YN4hy x-6403, xx-6164, xxxC&)-4265.. GP38H2 .
* hydrogen-powered units, under test.. Scheme YN4hy is blue, black, & green with yellow nose