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ER Sparrow Mk II Plans — 30-inch RC trainer
True 1:1 printable cutting templates (tiled Letter and full-size 36×48) and the 8-page build guide for the ER Sparrow Mk II, a 30-inch foam-board trainer.
$8
This is the whole list. Everything else on the site — the tools, the guides, the free plans, the setup database — stays free, and these are what pay for it.
True 1:1 printable cutting templates (tiled Letter and full-size 36×48) and the 8-page build guide for the ER Sparrow Mk II, a 30-inch foam-board trainer.
Every foam part of the ER Sparrow Mk II laser-cut from white Adams Readi-Board, fold lines scored, with a 3D-printed motor mount, bamboo skewers for the spar and pushrods, and the plans and build guide as a download. Electronics, glue and tape not included.
A 13-page instructor guide and 8 pages of student worksheets for a six-session design-build-fly project. One instructor, one group, unlimited students.
4 packs, from $19.99. 30 heat-shrink servo lead labels: AIL, ELE, RUD, THRO, FLAP, GEAR, AUX1, AUX2, BEC, LIGHTS.
Fifty lightweight polymer locks that slide over a joined pair of servo-style connectors to help keep them from pulling apart. Black.
Twelve red/green caps for XT60-style battery connectors. Green end out means the pack is ready; red end out means it has been flown. Visual organization only — they do not measure or charge anything.
2 packs, from $29.99. 2 complete linkage sets for large scratch-built RC aircraft, developed from the control hardware on Eric's 20-foot RC airplane. Includes 2 laser-cut plywood control horn assemblies, 2 servo mounting plates, 2 threaded pushrods, 4 swivel linkage ends, and the hardware required to connect the pushrods to the control horns and servo arms. Servo, servo arm, adhesive, and airframe mounting hardware are not included.
The Standard 30-Pack of heat-shrink servo lead labels and a 50-pack of connector safety locks, together.
App-controlled lighting for RC airplanes on 12V WS2815 strips. Not held in stock — each unit is built when a run is scheduled, so this one starts with a conversation rather than a cart.
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