Finished Fabricating Center Cover, Worked on Controls

I bent the forward edge of the center cover top upward to match the slope of the forward seat pans.  This bending brake has come in handy for a lot of things in the build.

I drilled the top to the side z channels.  I intentionally drilled the top to the channels prior to drilling the channels to the floor so that I could ensure the top edges line up perfectly with the apex of the channels.

I had to sand/file away almost 3/8″ from the back edge to get this to fit down flat against the floor.

I laid out and drilled the holes on one side of the cover.  I drilled some screws in part way so that the z channel is up about 1/32″.

This keeps the cover level while I use a strap duplicator to match drill the other two holes.

After screwing the cover down tight against the floor, I drilled an additional #8 hole in the turned up end that will allow the cover to be screwed to the forward seat pan.

I then installed a nutplate on the underside of the seat pan.

The copilot’s stick is removable so that it can be taken out when not needed.  The stick is a tight friction fit in the base, but Van’s recommends installing a bolt through the pair to keep the stick from inadvertently pulling out.  Apparently, this is due to an accident that happened a number of years ago when the copilot’s stick pulled out while somebody was trying to land the plane from the right seat.  The problem with this approach is that it means removing the copilot’s stick requires tools and would be inconvenient at best.  A number of builders recommended using a quick release locking mechanism.  I ordered a few of these clips from McMaster-Carr.  Since the copilot’s grip wiring is going to be running past this clip, I slipped on a piece of heat shrink tubing since the edges are pretty sharp.

I drilled/reamed a 1/4″ hole through the stick and base, then installed the clip into the stick.

When the stick is inserted into the base, the clip locks the two together so that there is no way they can come apart inadvertently.  When I want to remove the stick, I just have to push in on the button and pop the stick out.  There will be a small 2 circuit Molex connector inside the stick for the copilot’s PTT switch that will need to be disconnected.

Finally, I reinstalled the control stick mount.  I need to fiddle with the washers a little bit to make this pivot smoothly.

Fabricated Pushrods

I fabricated a couple of the pushrods used in the control system.  The shorter one ties the two sticks together in roll.  The longer one transfers the pitch forces from the sticks to the elevator bellcrank.  I still have to fabricate the pushrod that connects the elevator bellcrank to the elevators.  I primed them (including the inside of the larger one) with the rattle can primer since the inside of the fuselage is not exactly a high moisture area.

Installed Center Tunnel Nutplates

I installed the nutplates along both sides of the center tunnel in the seating area.  This uses a mixture of one and two legged nutplates.

Next, I reinstalled the front and rear flap motor covers so that I could fit the remaining parts of the center console.

Next, I started fitting the z-channels that will support the center tunnel cover.  There will be one of these on each side with a piece of 0.040″ sheet connecting them.

Plane Is On Its Gear

Jenn helped me suspend the canopy from the rafters so that it’s out of the way and isn’t likely to get bumped.  I used two straps at each end and ran the ropes through some scrap boards so that the ropes wouldn’t try to squeeze the canopy sides inward.

I slipped the tailwheel into the mount and wheeled the plane out into the sun for the first time.

With the plane on the lawn, I spent quite a while cleaning out the garage.  I needed to change the layout so that I’ll have room to install the engine and still close the garage door.  I moved the benches along side the fuselage and cleared a spot along the back wall next to my tool box so that the tailwheel can tuck right up against the wall.  Here is everything back in place.