Onan's a big name, their transfer boxes are pretty much the only ones used by the military at fixed sites. The military generators are built by different companies to specifications. At my next drill I'll try and get some more info.
Thanks. I'd take any info you can get. I glanced at the Onan website, and it looks very interesting.
PS: Do you know if these generators can accomodate external fuel tanks? To be a true survivalist/anti-establishmentarian, it seems like you'd need something on the order of a 500 or 1000 gallon external diesel tank. Plus, it would be nice, for fire and/or explosive reasons, to separate the tank off into its own explosive chamber [with, say, a wall that was heavily fortified in the direction of your living structure, but lightly fortified in the direction away from your living structure, so that any potential explosion would be directed away from you]. Furthermore, with an external fuel tank, if you did get a fire, it could [at least hopefully] be contained within the generator itself, and wouldn't [necessarily] cause the tank to also go ka-boom.