wrote:

There is or was a manufacturing/rebuilding facility of Hiller
helicopters in the Northern/Central part of California, but I don't
remember where that is/was. Perhaps that is the Porterville reference,
but I don't remember the town name being associated with that effort.


Hiller Aircraft Corporation
3200 Imjin Road, Marina, California 93933-5101
(831)384-4500
http://www.hilleraircraft.com/