Full Size Robin Construction Plan via E-Mail
Robin CAD plan delivered in three formats – Word, PDF and TurboCAD
Robin plans are now available!
Purchase a set of full size CAD plans to build your own Robin!
I will e-mail the plans to you in three versions: Microsoft Word, PDF and the original TurobCAD file. Plans will be sent to the e-mail address you use for PayPal, or any other e-mail address you provide. Just let me know at firstname.lastname@example.org
PayPal - Robin construction plan for $5.00
Plans sent via e-mail
The full size Robin CAD plan will be sent to you as an e-mail attachment in three formats: Microsoft Word, PDF, and the original TurboCAD file. The Word and PDF plan files print out on eleven sheets of 8.5" x 11" paper on your home printer, and are easily taped together to produce the full size plan.
Robin plan reviews
The plans look great! I never expected to get a decent set of plans for that price.
Please note that you will have to have the TurboCAD program on your computer to access the Robin's TurboCAD file. Most computer users have Word installed, and anyone can print the PDF file. Download a free one page sample of the Robin's nose section here.
Following are some notes to assist you with your build of the Robin four channel model airplane. The Robin is easy to build and can be finished in a weekend. The Robin's construction is primarily of 1/8” square balsa with some 1/8” sheet balsa and light plywood in selected areas. The electric motor is mounted in the nose. The Robin is designed for a hand launch and has no landing gear.
You can buy the components individually or just purchase a new or used 4-Site and harvest the electronics from the foam plane. At my local flying club a friend had an older 4-Site he was no longer flying that I used for the Robin's motor and electronics.
Keep the Robin light
Keep the weight of your Robin to a minimum. The model is designed light and you do not need heavy balsa for strength. Choose the lightest weight balsa for tail surfaces, as the tendency is for the Robin to come out tail heavy if you are not careful.
Ensure you balance the model at the center of gravity with the battery installed in the nose section. I recommend that you glue a four inch length of 0.030” carbon rod to the center portion of the wing leading and trailing edges for added strength in this important area.
I employed zero offset for the thrust lines and the model flies well. Use a lightweight iron on covering and be careful as you shrink the covering to not warp the Robin’s frame. The balsa structure is strong enough to handle the shrinkage but be careful as you apply the heat. After the wing is covered slide it into the slot in the fuselage and glue in place. Use this same process for the horizontal stabilizer. Note that the fin is built as part of the fuselage.
Once the wing is installed attach the ailerons with clear hinge tape. Mount the elevator to the stabilizer with the same method and then attach the rudder. Be sure to bevel the forward surface of the ailerons, rudder and elevator for full range of throw before you cover them.
Electronics are easy to install
The electronics are easy to install, and should be kept as far forward as able to help with the center of gravity location. I used double sided foam tape to attach the ESC and two aileron servos to the Robin.
The motor is glued onto the 1/16” ply tabs. Carve out portions of the nose balsa area to accommodate the plastic motor mount. I used craft store paint on the mount’s bare wood areas to blend in with the Robin’s film covering.
The Robin is an agile and responsive flyer. You can fly your version inside in a larger setting as well as outside as a park flyer under calm wind conditions. I do recommend a small amount of exponential control be used to smooth your flying when the transmitter control sticks are near center.
Author: Gordon McKay