It did just seem to peter out, and yet a heck of alot of R&D went into the two 747s converted to the role. The USFS never showed any real interest, in fact the two DC-10s out of VCV are only on a CWN basis (call when needed), not on an on-call contract of any kind. This is pricey and tough to support, and I don't know if the 747, which likely contracted out at a higher rate, just wasn't taken in by the USFS or any of the states for anything longer-term that Evergreen would've found to be financially viable. Which is sad because those planes were extremely capable, and the program had some real promise.