Category: .


The Wonder is best described as a very fast, go-where-you-point-it, turn-it-quick-or-it’ll-be-gone kind of plane designed for hot-thumbed R/C pilots. With an .09 or a .10 size engine, the Wonder is actually a very nimble, aerobatic, smooth flying sport plane, but with a snarlin’ .15 or .19 up front it’s a hand- launched hot rod! Landings are no sweat thanks to the thick symmetrical airfoil and the light wing loading.
Wonder HOW it flies?Wonder IF it flies?
Your first adrenalin-pumping, action packed, speed blurred Wonder flight will answer those questions in a big hurry!


Click here to see a video of the Wonder in action (3.9 MB)


Build any one of these four versions from the same premium quality SIG kit!
C`mon, shake things up and take a walk on the wild side of sport flying.
Fly a Wonder!
Wingspan 37.5 in 953 mm
Wing Area 338 sq in 21.8 dm²
Flying Weight: 26 – 38 oz 737 – 1075 g
Wing Loading 11.1 – 16.2 oz/sq ft 34 – 49 g/dm²
Radio Required
(not included)
2-Channel (aileron, and elevator)
3-Channel (aileron, elevator, and throttle)
Engine Required

Set Up Specifications













2-Stroke .09-.19 (1.5 – 3.1 cc) (not included)


Elevator   1/4 inch 6 mm Up and Down
Aileron   5/8 inch 16 mm Up
  5/8 inch 16 mm Down
Center of Gravity 2  3/8 inch 60 mm Back of leading edge at root
Dihedral 0 inch 0 mm
Incidence +0 degree wing, 0 degree stabilizer
Engine Offset 4 degree down, 0 degree right
English Metric Number Required
Fuel Tank 4 ounce 118 cc 1
Spinner 1  3/4 inch 44 mm 1
Covering 2 rolls depending on trim scheme

  • SIG Easy Hinges
  • Hardware Pack
  • Full Size Plan
  • Photo-Illustrated Assembly Manual
  • Simple Balsa/Plywood Construction
  • Hardwood Landing Skid
  • Engine Mounts
The Wonder is not recommended for beginners or the faint of heart. It’s FAST!
Wonder Kit Instruction Manual
Click title to open in a new window.
Complete Pdf (2.3 Mb) Download


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