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T&J Monocoupe 90A Assembly Instructions Manual

R/c model designs by jim young
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T&J Models
R/C Model Designs By Jim Young
9356 Wendover Ct.
Brighton, MI 48116
www.tnjmodels.rchomepage.com
Monocoupe 90A
Speed and Comfort for the Common Man
In the late 19020's , Don A. Luscombe's Monocoupe introduced affordable and
convenient performance to the light airplane market. Previously, this market was
dominated by large, expensive, open-cockpit biplanes. The Monocoupe was compact and
offered a closed cabin for comfort and convenience. The reverse curve of the fuselage
became one of the signature characteristics of this family of sporty planes. Much lighter
and cleaner than other aircraft of the time, the Monocoupes were also popular for racing.
The longer and wider Model 90 was introduced in 1930, the A version having a 90hp
Lambert R-266 radial engine.
Our Monocoupe is designed for a 30mm outrunner and 3S 3300mAhr flight pack.
Extensive use of laser cutting and self aligning structure provides a straight and light
airframe with operational flaps.
Copyright © 2015 Jim Young and T&J Models

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Summary of Contents for T&J Monocoupe 90A

  • Page 1 R/C Model Designs By Jim Young 9356 Wendover Ct. Brighton, MI 48116 www.tnjmodels.rchomepage.com Monocoupe 90A Speed and Comfort for the Common Man In the late 19020’s , Don A. Luscombe’s Monocoupe introduced affordable and convenient performance to the light airplane market. Previously, this market was dominated by large, expensive, open-cockpit biplanes.

  • Page 2: Additional Materials

    Monocoupe 90A Laminate two sets of main and rear spar Construction joiners from 1/16” plywood. Mark the All of short kits require some level of location of R3 on the joiners. modeling and flying experience. We do not recommend them as a first model to build or fly.
  • Page 3 Monocoupe 90A Locate the spar assemblies over the Flip the structures over and cap the other plans. The bottom main spar will be side with 1/32” balsa. The rudder and slightly off the board, so just pin it to elevator L.E. dowels can be substituted hold it in position.
  • Page 4 Monocoupe 90A Repeat for the other wing. The flaps are hinged on the bottom with the covering material, and the ailerons are hinged along the top. Fuselage Prepare the top and bottom stringers as shown on the plans. A separate drawing of the right side is included so you can build both sides at once.
  • Page 5 Monocoupe 90A Unpin the structures from the board. Fit the top and bottom F5, F6, F7, F8 pieces Fit F3 and F4 onto the cabin floor. Fit to mate the two sides. Align the rear the F9 assembly and F10 in place on the section of the fuselage over the plans fuselage floor.
  • Page 6 Monocoupe 90A Assemble the forward spar box making Sheet the forward portion of the fuselage sure it is wide enough to fit both main with 1/16” balsa. Glue 1/4” balsa L.E. wing spars. Assemble the rear spar box to the fronts of the R2. Sheet the center...
  • Page 7 Monocoupe 90A Laminate 8 pairs of C4 from 1/8” balsa. Glue SC to front of F1 and sand to Assemble the cowl structure. Plank the shape. cowl with 1/16” or 3/32” balsa. Glue the cowl rings on the front and sand smooth.
  • Page 8 Monocoupe 90A Final Assembly The wing struts are laser cut from 1/16” plywood and are faced on both sides with 1/32” balsa. Bend 1/16” music wire as shown on the plans. Notch the bottom spars between the R9’s to clear the Z-bend.
  • Page 9 Flying Any iron on covering is suitable. The The Monocoupe 90A is not a hard plane Prototype is covered with 21 Century to fly but it is not a trainer being a tail Painted Fabric.
  • Page 10 Monocoupe 90A With the flaps at half or full, flybys are very slow. Just make sure to throttle back up before fully retracting the flaps. Landings can be performed with or without flaps. I like to keep a little power on all the way to touch down since it seems to help the roll out.
  • Page 11 Monocoupe 90A Disclaimer Jim Young and T&J Models accept no responsibility for crash damage and/or loss of kits, engines, accessories, etc. incurred during operation or building of a Jim Young and T&J Model’s radio-controlled model. In most cases it is very difficult or impossible to determine whether crash damage was actually due to radio equipment failure or to operator error.