Ailerons

Ailerons 18 (2.0 hr)

This entry was posted in Ailerons Tools Wings Wings - Structure on by

Today was a collection of random tasks for the hangar. First, I finally got a new torpedo heater to replace the propane heater I was using. This is a Procom 175VT factory reconditioned unit for $259. It includes some whiz-bang features like automatically variable BTU output from 125k to 175k based upon the thermostat setting, and manual btu selection. Its also multiple fuel burning kerosene, diesel, heating fuel, or jet A. I’m running tax-free off road diesel in it. 

The hangar mascot was quite cold until I fired up the heater.

I temporarily installed the bell cranks.

I also bought some new parts organization bins to organize some parts I’ve left sitting around and in anticipation of the fuselage kit’s arrival in May.

I also installed the ailerons in order to match up all the hardware for easier installation later.

IMG_7529.JPG IMG_7528.JPG IMG_7527.JPG IMG_7530.JPG

Ailerons 17 (3.0 hrs)

This entry was posted in Ailerons Wings Wings - Structure on by

After completing the priming, I set about riveting the push rods. Unfortunately I made the bonehead mistake of not properly labeling everything. I had a pretty good idea which part went where, but I was till off a little bit. It took some trial and error to figure it out. And then a little sandpaper to get everything to fit.

I used one steel rivet and one aluminum rivet in each end. 

The large pushrods were quick and easy with the pneumatic pop rivet gun and pop rivets. 

Finally, I temporarily assembled each of the aileron bell cranks. I will wait awhile longer before final install. 

Ailerons 16 (6.0 hrs)

This entry was posted in Ailerons Wings Wings - Structure on by

Today I set about drilling the remainder of the aileron push rods. First I measured the circumference of the tube using a post-it note. I then divided that number by 6 to get the appropriate spacing and made marks for each rivet hole location. (IGNORE the math, as measured incorrectly on the first pass, and forgot to take a picture of the correct post-it note. The principle is the same though.)

Then I used another bit of post it note to hold the rod ends in place for the first drill before using a cleco. I decided to prime after drilling everything instead of before.

I set up a makeshift jig to ensure the rod was centered. I should have done this for the shorter rods too. 

I had to slightly adjust the position of the jig base so that there was room for the clecos.

Next I setup for priming by scuffing the surfaces with scotch bright and then cleaning with acetone. I used the rudder hinge pin to push the acetone cheese cloth through the pushrods. I then taped the ends and poured AKZO into each pipe and shook. I repeated this process a couple times and then primed the outsides with the HVLP gun.