Sukhoi Su-26 (oz6334)


Sukhoi Su-26 (oz6334) by Sepp Uiberlacher from RCMplans 1990 - plan thumbnail

About this Plan

Sukhoi Su-26. Radio control scale model. Scale is 1/4.

Quote: "Sport Scale model of the Russian's outstanding new acrobatic aircraft (built at 1/4 scale). Sukhoi 26 by Sepp Uiberlacher.

When the Sukhoi 26 first appeared at the 1984 World Aerobatic Championship it created a lot of interest, from both spectators and competitors alike. Sitting there among all the other acrobatic machines, this new Russian aeroplane seemed to look out of place. With its short wingspan and low drag canopy, the aeroplane looked more like a racer of the 30's than a contemporary aerobatic design. As was the case with all earlier Russian aerobatic designs of the past, power came from a well-proven, powerful radial engine, said to produce 350 hp. One startling fact about the Sukhoi was its design origin; the company was only known for its jet fighter design.

A closer look at the aeroplane revealed the use of composite materials on the fuselage; the wings and tailplane being ply covered foam. Nobody was very impressed with the quality of construction or craftsmanship. In this regard the Sukhoi looked worse than anything the Russians entered before (keep in mind that craftsmanship was never one of their strong points). It must be pointed out, however, that the two Sukhois' entered were really prototypes; today's aeroplanes are much better. Of course, all of this is of no consequence if the machine outperforms the competition.

Although the Sukhoi was better than the older Yak-55 it became clear after the first round of flying that the new aeroplane was no world beater. The problem was its weight - the aeroplane stalling readily when pulled too tightly. It was also sadly lacking in vertical performance. There was not much praise from anyone. Some observers went as far as to say that the whole Sukhoi program was not worth the effort of further development. Only the Russians never doubted their design and went home to refine the aeroplane.

When the new Sukhoi 26M appeared at the 1986 championships in England it immediately became apparent that here was the aeroplane to beat. Its performance was now simply breathtaking and spectacular; the pilot the only limiting factor. Vertical performance was the problem before, now the aeroplane would climb like nothing ever seen in acrobatic competition. To achieve all this, the engine was given some special attention and there were rumors of 500 plus horsepower. Of course the Russians would not release any technical data - one could only speculate. Also the heavy ply wing skinning was replaced with much lighter composite material, therefore reducing the overall weight by about 250 lbs. There were small changes in the aeroplane's appearance - the rudder shape and the addition of wing fillets quite apparent. Also, the canopy was a little shorter and now less streamlined.

Since then, the aeroplane has changed very little and, to everyone's suprise, the Sukhoi is offered for sale to the West (for a hefty pricetag, to be sure). As it stands now it will take time and a lot of money to develop an aeroplane to better the performance of the Sukhoi, but, after all, this is what competition is all about.

The Model. Most modelers build a model simply because they like the way the prototype looks; this was the main reason behind my Sukhoi design. On top of that I was sure to have a lot of flight performance. This is something to consider when flying in a contest or simply for fun. There are other advantages - the cowl is large and therefore, it is easy to hide the engine and exhaust systems. Also, its distinctive Russian flavor should not go unnoticed by the judges in a contest, besides there are lots of color schemes available. My model is based on the Repla-Tech 3-view drawings of the Sukhoi 26.

The model is Stand-Off Scale, however the outlines are exact to Scale. The only changes are in the wing airfoil, although the percentages were kept as per the prototype. Where there was a conflict between the 3-view and the photos, the photographic evidence was given preference.

The model is not difficult to build or to fly, but, of course, it is not intended for the beginner into R/C. The items most modelers find hard to make, such as the fiberglass cowl, canopy and the specially made landing gear, are available through me, as well as the aileron hinge nylon bushings and torque rods if the demand exists. Most of the other hardware are standard commercially available articles, so you should not have any problems there. I used a Super Tigre 2500 engine, but of course different powerplants could be used. Anyway, enough for now let's go on with the construction of the Sukhoi..."

Supplementary file notes

Article pages, thanks to hlsat, JHatton.


Did we get something wrong with these details about this plan (especially the datafile)? That happens sometimes. You can help us fix it.
Add a correction

Sukhoi Su-26 (oz6334) by Sepp Uiberlacher from RCMplans 1990 - model pic


  • Sukhoi_Su-26 | help
    see Wikipedia | search Outerzone

    ScaleType: This (oz6334) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.

    If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.

    ScaleType is formed from the last part of the Wikipedia page address, which here is
    Wikipedia page addresses may well change over time.
    For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
    Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.

Sukhoi Su-26 (oz6334) by Sepp Uiberlacher from RCMplans 1990 - pic 003.jpg
Sukhoi Su-26 (oz6334) by Sepp Uiberlacher from RCMplans 1990 - pic 004.jpg
Sukhoi Su-26 (oz6334) by Sepp Uiberlacher from RCMplans 1990 - pic 005.jpg
Sukhoi Su-26 (oz6334) by Sepp Uiberlacher from RCMplans 1990 - pic 006.jpg

Do you have a photo you'd like to submit for this page? Then email

User comments

Hello, I am looking for the Canopy and engine Cowl, does anyone have email address for Mr Sepp Uiberlacher or is fibreglass specialties make these? Thank you
Didi Laksana - 15/07/2019
Add a comment



Download File(s):


* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.


This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.


Terms of Use

© Outerzone, 2011-2019.

All content is free to download for personal use.

For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.

Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.