The newest way to describe the J-model is that it's a pretty cool video game. But the logistics can be a pain in the backside. The loadmaster always shows an hour prior to pilots. He's there to load a pallet full of quarters into pallet position #1. He then gives a bag of quarters (and their box lunches) to the pilots when they show at the aircraft. The pilots proceed to take turns putting a quarter in the little slot on the dash next to the fancy screens...and that makes the J-model work for 5 minutes. So, one pilot loads the computers that tell the aircraft what to fly (and the airplane computers do most of the flying), while the other pilot is responsible for keeping the quarters flowing into the machine to keep it airborne.
The Loadmaster's there to keep the pilots awake so they can feed the machine the two-bits at a regular pace. But, due to the technology from the timeframe that the J-model was developed (and the strict military aquisition regulations in place at the time), the contract on the J-model allows it to only accepts the old style quarters, not any of the new quarters with the various State's represented on the back. A modification has been submitted to Lockheed for approval (at an obnoxious price). Change 1 to come...
Kinda takes the fun out of the old Herk legacy of just being "five crewdogs on a continuous pub crawl". A "threesome of crewdogs" just isn't a pretty picture...in any airframe.
Just an old fart's observation, pontification, procrastination and joke infestation...