Section 21 Build Time: 668 hours

Section 21 - the most complicated section yet. I decided to take it on in two parts. I'd locate the first half of the parts, deburr, prime, prep and assemble those. It worked out pretty well except once you start processing parts you generally loose the numbers as you clean and scuff. By the time you handle them so often you pretty much know where they go. I do mark all left hand parts so I don't have to go back and figure that out. While preparing these for primer I made all the holes needed and all the dimpling. This meant that some of the ribs had special functions now and getting that all sorted out took some time.

Some of the bigger pieces of section 21's first half ready to assemble.

The rest of the first half of section 21 ready to assemble.

Sorting out the seat ribs. They were all pre-processed and have unique functions now so I have to be careful.

Baggage area went together in a couple hours after work. There were a couple of the 470 rivets that gave me grief on the baggage floors. I wasn't happy with them so I drilled them out and tried again but did not make any improvements. I'm thinking of using a 5/16 rivet in the two locations and adding a baggage tiedown at each point.

The back half. It's neat to look at this knowing this is one of the parts you will always see in the plane.

Some of the smaller palm sized parts becoming bigger airplane parts.

Working through the seats. I missed the auto pilot doubler while gathering parts so today I'll have to stop and deburr those parts and mix up a couple ounces of primer. There's still a lot to do on the seat pans so it shouldn't slow me down too much.

Here's an area that I'm deviating. They had these counter sunk pop rivets holding the nut plates and baggage floors to the ribs. They looked like they would barley hold the nut plate. I assume they did this because you can't squeeze these give their location. But they can be bucked so I drilled the pop rivets out and bucked in some 426's. Came out nice.

Looking ahead at the rest of section 21. Gathered up all the parts.  I may start deburring this weekend if time permits.