Baggage Compartment

Yesterday I was able to install the flap motor channel and flap motor brackets, and today I installed the baggage compartment side walls. Actually, I didn’t quite finish; there are some rivets I will need to buck tomorrow to wrap up. It is too late in the evening to start riveting.

The pop riveting is so fast, it’s really amazing how quickly and easily it all comes together. I wouldn’t attempt this without a pneumatic squeezer though, it would be painful to manually set these hundreds of rivets. I made extensive use of the “wedge tool”. I found it very useful to have a piece of tape on the little wedge so I could tape it into the correct orientation before setting the rivet.

Flap motor channel installed. 4 rivets at the bottom need to be bucked
Motor mounts riveted into position
Baggage side walls clecoed into place
Riveting the side panels into place
Where it stands at the end of the day. Clecos on the left indicate rivets that need bucking. Note the clecos on the right at the bottom of the flap motor channel, also need bucking

Baggage floor

Today I finished the baggage floor, and installed the splice. Then I installed nutplates on the flap motor bracket, which is now ready to install. Everything went well, except the final rivets between the floors and the side ribs. These holes were not well aligned, and I needed to ream them somewhat to get rivets into the holes.

Fuselage on rotisserie makes this work much easier
Floors finished, and splice installed
Nutplates installed

Baggage floor

Today I finished the pop rivets on the baggage floors. The remaining rivets, those between the floor and the rear bulkhead, need to be set with a rivet gun. It’s too late in the evening to be pounding rivets, so I moved onto the next step, and installed the seat back hinges.

Seat back hinges installed

Baggage floor riveting

More progress on the baggage floor riveting tonight. I worked mostly on the right side floor, getting it almost to the same point as the left side. This has been a relatively easy riveting job so far, although I’m saving the harder rivets until the end. Hopefully I can wrap up this step over the next couple of days.

Starting on the right hand baggage floor
Where I ended the evening. So far, the step covers have been the trickiest parts. I can’t get my hand squeezer in there for all the rivets, so resorted to a couple of pop rivets, and some use of the pneumatic squeezer.

Baggage floor riveting

Tonight I started riveting the baggage floor. I started on the left side of the fuselage, and set all of the pull rivets, except for those oblong the outside edge. For the edge, I think it will be easier to roll the fuselage onto the other side, so that gravity helps keep the squeezer correctly oriented.

It’s so easy doing pop rivets with the pneumatic squeezer, and I was able to cover a lot of ground in just an hour or so. It’s also quiet, and I was able to work on this late at night without keeping anyone awake.

The area where I started riveting. The blue tape is to remind me to not rivet those holes yet
Where I left the session. I think I got all the pop rivets on the left side, except those along the outside edge.
Pop riveting

Baggage floor install

Tonight I installed the baggage floors, final sized some nutplate holes, and then clecoed the floors to the substructure. before I started, I spent time carefully cleaning out the under-floor area. Using a damp cloth I wiped all the surfaces, then vacuumed everything with a brush-head fitting.

The next step is to rivet these floors down using a variety of rivets. I’ll be making good use of the pneumatic pulled-rivet squeezer, along with my hand squeezer, and rivet gun.

Baggage floors in position
Final sizing the nutplate center holes
Clecos in position. I had just enough #30 clecos to do both floors

Additional nutplates

I was doing some reading ahead and studying some other build logs today. I was trying to figure out if I should do anything extra before I permanently install the baggage floors.

I replaced a pop rivet that had been set poorly while joining the fuselage. There are only a couple of them, and one had gone in on an angle, so I removed and replaced.

Next I noticed that some builders installed additional adel clamps next to the fuel pump to hold the wiring bundles securely. The problem is, there are no nutplates installed, so people struggled with nuts and bolts. I saved that pain by installing some nutplates on the fuel pump mount. Interestingly, the holes for a nutplate are already there, and the Quickbuild kit even has dimpled rivet holes. So I installed some nutplates for future use. Access is super tight, but I was able to get my hand squeezer in there to set the rivets. I used K1000-08d nutplates

Two of the 4 nutplates, circled in red, installed

Nutplates

Tonight I just had a few minutes, and managed to complete a couple of steps installing nutplates on the baggage floors. This was very straightforward, nothing interesting to report.

Riveting the nutplates onto the forward edge of the baggage floors
The nutplates being riveted on

Priming the baggage area parts

Today I primed all of the baggage area parts. This included the floors and side panels, and flap motor bracket.

For some reason the paint job was not as good as I had hoped. I still need to figure out how to optimize the spray gun to get consistently good finishes. My guess is that I’ve not got the right ratio of paint to air, and that I’m blowing too little paint. The finish is rough, like a fine sand paper, which is possibly caused by paint particles that are already dry, sticking to the part. It’s not terrible, and it’s just primer, but I will soon be painting the cockpit, and I want it to look good.

Cleaning the parts with Ekoclean, before they are etched
Etched parts, ready to be primed
Etched parts ready to be primed

Dimpling and counter sinking

Today I dimpled and countersunk the parts needed for completing the baggage area. Most of the work was dimpling the floors, but some countersinking was needed in a couple of places.

Dimpling was easy enough, although I made a mistake and dimpled the 4 CS-4 rivet holes using my regular #30 dimple dies with 120 degree dimples. I then realized my mistake and redid them with my 100 degree dimples dies. Not great, but it will be ok. I correctly dimpled the corresponding rib holes, after I carefully measured to make sure I identified the correct holes.

Baggage floor after dimpling
Dimpling away on the DRDT