Month: October 2020

The problem with the strobe lights turned out to be two wires that were accidentally swapped by the avionics shop. The strobe lights were connected to the standby alternator and vice versa. John and I figured it out and got it fixed. One other lesson, that $40 tool is completely unnecessary, a standard paperclip works just as well.

I mounted the data plate – it looks good.

I nearly have the yaw trim in the tail sorted out – I had to replace the wires leading to the motor because they were too short. This wasn’t actually as difficult as anticipated and will be better in the long run.

I finally got the registration for N662F from the FAA.

The biggest things left are mostly on the canopy and basic cleaning.

Speaking of cleaning – my car is back in the garage for the first time in about three months. I moved the airplane out to the hangar about 3 weeks ago but had lots of miscellaneous tools and parts on the floor in the garage. It was rainy and cool today – a perfect day to work around the house. It took a couple hours, but I was able to get all that stuff out of the garage and Tessie is back inside.

The inspector comes to town on Sunday, November 1st. I still have a long list of stuff to do to get ready. Nearly every night for the next week and a half plus both Saturdays will be mostly at the airport getting ready.

The biggest issue I have been “fighting” is that the strobe lights didn’t work. After several hours of troubleshooting I was able to find the problem (a bad pin in one of the connectors). One $40 tool and a few minutes of work and I should be able to fix that problem.

Lots of little stuff left including minor wiring tasks, installing some inspection panels.

Oh and the paperwork with the FAA. Arghhh! they want so many forms, notarized and signed and witnessed. Hopefully, will get the registration in the mail any day now.

I am a bit behind on the blog posting.

On Saturday, October 10th we did the empty weight and balance measurements. We put the airplane on 3 car scales and recorded the weight on each wheel. A bunch of simple math later and we had the Weight and Balance and the Center or Gravity all calculated. The good news is it was exactly where we wanted it to be and right in line with other planes that were already flying.

Here are the calculations:

The allowable CG is 82 to 88” aft of datum

The max gross weight is 2050 (1900 for aerobatics)

My CG of the empty airplane is 81.25 which means fuel burn does not change the CG but baggage and people move it aft.

Even with minimum fuel, no baggage and a very light pilot I can’t get it forward of the allowed CG

fuel	301	81.97	24672.97
baggage	100	129.48	12948
people	390	99.83	38933.7
	357	40.2	14351.4
	448	97.5	43680
	454	97.5	44265
	2050	87.24442	178851.1

We finished all the pre-start engine tests including checking fuel pressure and volume, oil pressure and cleaning out the engine preservative in the fuel system.

My friend John was a trooper as we moved 25 gallons of aviation fuel back and forth between the two tanks several times. Without complaining he filled the 5 gallon bucket from one wing and moved it to the other and then back.

We wanted to run the engine that day, but it was a steady drizzle outside and we finally gave up and continued to work inside.

We did the first engine start on Sunday, October 11th. The engine started without issue and ran well for the 15 minute test run.

We have spent the last couple days working on the punch list. We have knocked out a couple big things of late.

We got the Garmin G3X system updated to the latest software: 8.7.2.

We got the flaps and ailerons connected and properly rigged. This was a pain in the butt because it requires putting several washers in the connections in places that are difficult to get to. It’s kind of cool to move the stick and see the control surfaces move appropriately.

We got more of the antenna work done. We now have all of the antennas installed and connected. I will likely shorten the cable to the nav antenna in the wing. I still need to put some silicone on the transponder antenna.

We got the seatbelt shoulder straps installed. We still need to install the seatbelts.

The plan is to do an engine start next weekend. This requires the brakes to be completed and the fuel piping from the wings to the fuselage to be installed. I hope to do these two tasks on Tuesday or Wednesday assuming the parts I need arrive.

Other things on the horizon: more cowl work, connect the rudder cables,

My friend, John was invaluable (again).

My punch list hovers at about 75 items. It seems that as I knock a few off the list, I encounter a few more that I need to take care of. The good news is the big ones (ex. install wings) are mostly gone and now I really have many small tasks (ex. install data plate) to go.

My father and I have torqued all the wing bolts, fixed a small issue with a baffle bracket, begun the install of the ELT and added RTV to the engine baffles.

We installed the axle shims to remove the toe-in on the main gear. They helped, but I decided to order two more shims ($28 each) to try to get it perfect.

Another issue I finally fixed was with one of the two bolts that hold the aft baffles to the top of the engine. When I originally installed the bracket and the baffles I couldn’t get one of the two AN3 bolts to go into the nut plate on the bracket. After lots of attempts (and a lot of cursing) I took the bracket off and discovered that I had the wrong size nut plate installed. Once I replaced the nut plate with the correct one, the bolt went in much easier.

I also started getting serious about all my paperwork for the FAA and the inspector. I didn’t realize that I needed a bill of sale for the airplane from Van’s (1 week delay) and that the registration has to be completed prior to the inspection. I think the paperwork set me back about two weeks.

The ELT was a litte bit of a bear to install. We installed it just forward of the vertical stabilizer in the tail. I could get three of the four screws for the bracket installed. I had to ask Marianne to install the last one (her hands are significantly smaller than mine). I still have to do the wiring to the ELT and install the antenna.