Ulan RS-40 (oz14873)


Ulan RS-40 (oz14873) by Rudi Schillig 1986 - plan thumbnail

About this Plan

Ulan RS-40. Radio control sport twin model. Powered glider style design. Wingspan 334 cm.

Quote (google-translated from the German): "Ulan RS-40. Glider/motor-glider for universal use. By Rudi Schillig.

The model according to this construction plan is designed for a very wide range of uses: as a glider for slope soaring or high launch or as a motor glider with one or two engines that can be easily assembled or dismantled. A landing gear is also provided and can be released in the air and dropped by parachute. In the prototype of the model, the throttle cocks of the two engines, the towing clutch and the release device are all actuated by a servo, i.e. when the engine is throttled, it is released. Of course, it is up to each model maker to what extent he equips his model with all these special functions.

In the pure glider version, the model does not make any special demands on the structural capabilities and possibilities, for the 2-motor version as a motor glider with its quite complicated mechanics (coupled linkage of the motor throttles, the release of the landing gear and the spoilers), however, you need to bring some experience with you.

Building instructions - fuselage construction: All fuselage frames parts 1 -17 can be sawn out according to the plan. The longitudinal chords 19 are to be marked with the spacing of the frames. The longitudinal line of the hull on both sides (visible on the frames in the plan) should also not be forgotten. A ruler is used to align the fuselage. The fuselage is to be built on a straight building board, so that the fuselage straps parts 19 - 20+ 21 can be aligned with the frames and easily glued on. Parts 6 + 7 must be pre-drilled to accommodate the brackets (28). (The version with two support tubes can also be used according to plan).

For the head frame, parts 11 + 17, a shim is to be placed under each. The hull is still held on both sides of these frames with screw-on support brackets until it is dry. Now we can use the pre-made
Glue in the end block, part 18, and align it again with the ruler. Care must be taken that no delay is incorporated. The fuselage remains on the building board, parts 30+38 with the guide tube 36 are to be glued on.

After drying, the ribs, part 25, can be aligned and glued to the support tubes. The axle, part 37, with the soldered linkage lever, part 39, is pushed in and soldered to the lever 33. The linkage part (29) is to be screwed on, the screw head glued on and both parts connected with a rod made of 1.5 mm steel wire. Then we can glue the servo board 40 in place.

The tip of the fuselage, part 1a, can be glued on with the integrated tow release. The cabin connecting frame, part 1c, is glued on, the battery board is glued in, the fuselage reinforcement, part 24a, is manufactured, adjusted and glued on. The expansion lever (72) is to be made according to the plan, the parts (4a - 4c - 73 + 74) can be prefabricated.

Before gluing in the floor board (43), first glue the undercarriage holding part (75) to the auxiliary bulkhead (4a). (Attach at an angle to the hull). The fuselage can then be removed from the building board and the frame 4c, the parts 81 and the guide tube 73 with the release shaft (74) glued in place. The shaft must have some play in the locking hole in part 75. The release lever 72 is now attached with the screwed part 77 and glued to frame 3 and to the fuselage reinforcement.

The servo board (71) and the part (71a) are glued in, the servo is fastened and the Bowden cables are routed to the tow coupling. The linkage is to be designed in such a way that with throttled engines the towing clutch and the landing gear release shaft are in the 'open' position..."

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Ulan RS-40 (oz14873) by Rudi Schillig 1986 - model pic

  • (oz14873)
    Ulan RS-40
    by Rudi Schillig
    from FMT
    August 1986 
    131in span
    IC Glider R/C Multi
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 27/09/2023
    Filesize: 505KB
    Format: • PDFbitmap
    Credit*: Pilgrim
    Downloads: 523

Ulan RS-40 (oz14873) by Rudi Schillig 1986 - pic 003.jpg
Ulan RS-40 (oz14873) by Rudi Schillig 1986 - pic 004.jpg
Ulan RS-40 (oz14873) by Rudi Schillig 1986 - pic 005.jpg

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