Canopy Airbrake for Sailplane -- TTTSYD
Description
First, a big thanks to all the folks on the TWF thread of RC Groups for their contributions to my knowledge of flying and building "twisty-wing" RC slope gliders! Especially Winchdoc, whose aluminum machined version popularized this mechanism (and it still available for the discerning flyer today). So the Canopy Airbrake, TTTSYD (That Thing That Slows You Down), is a mechanism to remotely raise the hatch cover of the plane to promote more drag on this otherwise slippery plane to manage the speed of the plane for landing...else it's pretty hard to slow it down! Hinge mechanism in the nose fitted to linkage and a servo in the servo tray. The photos are of a model set up to show just the Canopy Airbrake in action. This, being mostly of plastic, my goal was to make the "breakable" bits removable, so the only parts glued-in are a mount in the nose and a mount on the hatch cover. Everything else is held with dowels and magnets. Parts needed: 6 - 5/16" x 1/8" neodymium magnets 2 - 1/2" or so pieces of 5mm carbon fiber tube (or wooden dowels of a similar size would do) 1 - 3mm x 25mm screw (for the hinge) Assorted servo fittings and control rod materials Aside from the mechanical parts for the model, there's an alignment tool to align and hold the nose bracket in place, in line with the center of the fuselage, while gluing. Once the assembly is installed, put the canopy bracket on the magnets, some glue on the bracket, a piece of foam under the TTTSYD rod, align the canopy cover with the fuselage, and tape it down while the glue dries. Note, as of 9/6/21 I have not tested this in the air. I have tested it with a leaf blower at 55 and 75 mph. Grab a beer and enjoy this 23 second video! https://youtu.be/BlPLJOyeUO0
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