Sukhoi Su-26 (oz6662)
About this Plan
Sukhoi Su-26. Radio control sport-scale model.
Quote: "The SUKHOI 26 is not a scale aircraft but a look-a-like. It was designed to be light, good looking and be a good sport flyer. There aren’t many scratch builders around any more so I made the building easy and used standard construction through out the aircraft.
I have a problem with ARF because after you 'ding' them you can’t repair them. Most of the time you throw them away and you loose all your investment. If you ding a scratch airplane, you can repair it. It costs about 20% less than an ARF to build from scratch and you have a feeling of accomplishment when you are finished. The only cost is your time.
My Sukhoi had a mid-air. The wing was cut into 3 pieces with 6 inch missing on one wing panel. Because it is a plan built aircraft I was able to have it flying again in 3 days. I had all the patterns of the parts.
Before we start, a funny story. On about the third flight of my new Sukhoi, I had just taken off when the rudder servo went to full right. I corrected with left aileron and low power. I tried to put it down on the runway (250 feet wide at Floyd Bennet Field, a retired navy air station). I was beyond and over a heavy overgrown area. There is a taxiway just beyond the overgrown area so I tried to put it near the taxiway but I was now below the top of the high bushes. Okay I’m down, but how close to the taxiway? I drove over to the taxiway to about where I thought it might be. I stop in the middle of the taxiway and look around. I couldn’t see it. Time to get out of the car and look around but first, pull the car to the side of the taxiway. It was then I heard a sound of crushing plywood.
The Sukhoi had crashed on the edge of the taxiway and the wing was on the taxiway. It was in perfect condition, that was until I drove over it! Not only did I roll over it but I had run over it diagonal from tip to tip. I carried the remains back to pit area and had a good laugh.
Construction of the Wing: I will start with the wing. Make all ribs from 3/32 sheet. I make photo copies of the ribs and I use a 'glue stick' to glue the rib pattern to the sheet 3/32 balsa. Remove the paper right after you cut the rib, before the glue has a chance to set. I buy the glue sticks at stationary stores. Lay down 3/8 sq spars as shown. Glue ribs in place. Put top 3/8 sq spar in place and glue. I used titebond II for the entire wing.
Place tapered jig under the rear of all ribs. Glue 1/4 sq trailing edge to rear of ribs. Make the trailing edge sheeting from 3/32 sheet cut to 25 in long and 1-1/2 in wide. Save the left over 11 in piece for center section sheeting. Glue in place. Glue 3/8 sq leading edge to ribs.
Make 4 tapered leading edge sheeting from 3/32 x 3 inch sheets cut to 26 in long (save the leftover sheeting), dampen the top of the sheeting and glue in place. Cut and glue 1/16 vertical webbing between each rib. This will form a D-tube when finished. Finish the top by adding 1/4 x 3/32 cap ribs. Sheet the center section and let dry. Flip over and add the 1/16 ply rib doubler to rib 2 and 3. Glue in the hard wood landing gear block. Cut, fit and glue the 3 filler block where the hold-down screws come through the wing..."
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