UpNup's blog View Details
Archive for April, 2018
Posted by UpNup | Apr 28, 2018 @ 09:59 AM | 3,868 Views
A Long EZ has to have its designer at the controls, right?

Here’s my stab at putting Burt Rutan in the cockpit circa 1985ish. The ARF is from Nitroplanes about 2005.

Rutan liked Elvis and kept his chops. Mine are from a thick polyester yarn I use to hang my planes. Metal microphone arm came with the pilot figure....Continue Reading
Posted by UpNup | Apr 13, 2018 @ 02:21 PM | 2,925 Views
After hanging a new plane, I feel like a mother hen checking on her chicks. Will the 3M hooks hold? Each hook is rated at 3 lbs. apiece.

Each 3M hook has thick, soft yarn attached to it. This system costs about $5.00 per plane. Note that I put a pillow below my Ford Flivver and foam guards around the dummy engine cylinders.

The yellow plane is a PZ Sport Cub S2. It has been hanging that way for a year. It weighs two pounds. The Ford Flivver, without battery, weighs about 3 pounds.m

These planes hang in the corner of my garage waiting for the weather to break. They’re exposed to below freezing temps and heat in the 100s with no ill effects so far.
Posted by UpNup | Apr 07, 2018 @ 03:00 PM | 2,362 Views
The 10 X 8 propeller is battleship gray for the electric motor in the Ford Flivver 268 build. Rather than paint it, I used a brown Sharpie pen.

The tips were painted yellow using just a dab of Testors enamel yellow. Then, starting at the hub, I made long, unbroken stripes to the tip. I started in the backside in case I messed up, but didn’t need to worry.

When the Sharpie stripes dried (in minutes), I made horizontal swipes with the marker over the yellow painted tips. This gave the illusion of copper plates that the original Ford Flivver has on its prop tips.
Posted by UpNup | Apr 06, 2018 @ 03:21 PM | 3,110 Views
My Ford Flivver 268 1/5 scale build took about 160 hours stretched over 11 months, and took several hundred dollars. This was my first build from plans. The CG was right where it should be, which was tricky for an electric conversion. The final weight was 3 lbs., 9 oz., one ounce below the target weight. My UpNup blog follows steps to completion over the past year. Start at May 2017 when I first printed out the plans.

As for my plans for the maiden flight, I want to build up skills to fly it in a couple of months. Thanks for reading!
Posted by UpNup | Apr 06, 2018 @ 03:08 PM | 2,826 Views
The Ford Flivver 268 build included the need to reverse the rudder servo. Reversing is a hidden gem in the settings. And it’s so very simple.

My Spektrum DX6e does it this way:

1. Scroll to SYSTEM SERVO.
2. Tap Travel twice as if it were a hyperlink.
3. The screen changes and you’re at REVERSE.
4. Scroll Down to the rectangles this look like switches. Click on RUD. You’ve now changed it.
5. Rudder servo should now work the way you wanted it to be.
Posted by UpNup | Apr 04, 2018 @ 08:23 PM | 2,508 Views
The original Ford Flivver 268 hanging in the Ford Museum at Dearborn, Mich., has a rear hatch on the right side below the stabilizer. That doesn’t work on the RC model.

To access the tail servo, I chose to build a hatch in the bottom. I should of done one on the wings. When I put Monokote on the 1/16” balsa, it pulled up when the Monokote heated and shrank. However, I kept going and rigged it so that the wind would help keep the trap door shut. A brass piece that I made from an AC plug worked just right.

Almost finished with this build.
Posted by UpNup | Apr 04, 2018 @ 08:09 PM | 2,329 Views
The Ford Flivver plans call for operational braces between the rudder (fin) and elevator (stabilizer).

I looked at three options including Kevlar csbles, some flimsy metal wire, and then .025” gauge piano wire. The wire was required by Dereck Woodward, the plan designer.

The Catch was affixing the wires to the plane. When I built the frame, I chose to put 1/64” plywood rectangles in place and pre-drilling the screw holes. The tiny black screws were salvaged from a Toshiba Netbook that I destroyed when it died. I put Monokote over the ply bases.

Looking at various posts by builders I could solder or perhaps find something to affix the wires. The answer was something in the electrical department 16-24 .25” male disconnects. I removed the blue plastic covers and bent the aluminum to fit and had to enlarge the holes.

My linesman’s pliers crimped wires cut to size. I hit every crimp with red Locktite thread lock (glue). I put a drop of CA into the screw holes on the plane.
Posted by UpNup | Apr 02, 2018 @ 08:39 PM | 2,509 Views
The Ford Flivver 268 plans place the tail servos behind the firewall. Thanks to incredible technology, I put the elevator servo into the tail. I kept the pull-pull but moved it just behind the CG in the center.

Note that the cables cross and go thru the fuselage in pre-cut holes. The holes are rimmed by matching blue stirring straws I brought home from an American Airlines galley. Thanks to a recommendation I kept the rudder bracket and the servo arms about equal.

The tail servo was epoxied into place. I missed that the extension cable would drape down right into the elevator cables. So I pulled the cable up and into the hulled-out long silver headrest and above the cross beams. It worked like a breeze. If I were into this build it would have saved time to put the elevator rudder into place before flying in the king headrest.

The urge to finish this build is strong!
Posted by UpNup | Apr 01, 2018 @ 09:53 AM | 2,249 Views
Rigging is recommended in the Ford Flivver 268 plans. When gluing the fin and stabilizer with epoxy onto the fuselage I noticed how important the rigging needed to be.

Shims were glued to the stab to level it. I had to trim off the pegs on the fin so that it would fit into the fuse slot. The fin had to be set vertically and also in alignment with the fuse. This was certainly more art that science.

Gorilla Glue epoxy dries in five minutes but can be set in 30-minutes. I trimmed off any Monokote to expose wood so epoxy could go on balsa. I put epoxy on the stab, fin, and the bracket into the rudder and bracket into the elevators.

After all was set, the left side elevator lifts up 1/8” higher. The rigging will need to correct this.