Since my name is on the door I can probably fill in a few of the blanks here. Ken's 1970 FL711 was originally built for Hamilton Standard in Colorado, an aerospace company. The truck has a ENDT673C with a deep under 15 speed and air ride. It is all aluminum, and pretty much all original including the wheels. It has 36,000 miles showing and that appears to be original. It is quite a nice piece.
I tell folks that I found this truck for Ken, but he wasn't looking for it. What he was looking for was a World War Two 4000 gallon F1A aviation fuel trailer used by the Army Air Corps. Ken has a 1943 Biederman 7-1/2 ton 6x6 F1 tractor he is restoring, and these tractors were only used to pull the F1 or F1A fuel trailers. They were actually designed to pull two trailers in tandem. These trailers just don't exist any more. I know of one in Europe that is very rusty, and there was another in Maryland that I think was scrapped. I saw the Corbitt ebay listing that BC Mack mentioned, and in the background there was an interesting looking yellow tank trailer. I clicked on "other auctions" and the same seller, a college in Montana, had the F model Mack for sale and it was hooked to a genuine F1A fuel trailer. I couldn't believe it ! I told Ken about it and he won the auction. He originally had little interest in the Mack and was going to sell it, but decided he wanted to look it over before he did so. Once he got it home he realized what an original and rare truck it was, and decided to keep it. It is now one of his favorites and he is having a lot of fun with it.
I work at the Kennedy Space Center with NASA, so the NASA sticker on the door last year was a joke between friends. But it is possible that the truck hauled parts for NASA as Hamilton Standard built parts for the Space Shuttle, and Apollo too, I think. I asked Ken a few months ago if the NASA sticker was still on the door, and he said he took it off. So at Macungie I was quite surprised to see "Lakaszcyck Truck Lines" on the door ! Ken calls it my truck, but I don't expect to see it in my garage any time soon. I got to drive it a little at Macungie and about busted my ass getting in and out of it. I think I need trucks with running boards !
The first photos below are the ebay photos. The orange truck below is the Biederman Ken is restoring. Last are a couple more of the F711. Be sure to read the fine print.