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.
yy1SIGRC66b 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!

Product Features

  • SIG Easy Hinges
  • Fully-Symmetrical Airfoil
  • Complete Hardware Pack
  • Full Size Plans
  • Decals For All Four Versions
  • Photo-Illustrated Instruction Book
  • Simple Balsa & Plywood Construction
  • Quick Building Balsa Fuselage
  • Built-Up Balsa Wings
  • Hardwood Landing Skid
  • Engine Mounts

Tech Notes

Build any one of these four versions from the same premium quality SIG kit!  
yy1SIGRC66c yy1SIGRC66a


Wingspan 37 1/2 in 952 mm
Wing Area 338 in² 25 dm²
Weight: 26 - 38 oz 737 - 1077 g
Wing Loading 11.1 - 16.2 oz/ft² 423 - 4943 g/m²
Radio Req. 2-Channel (ail, ele) 4-Channel (ail, ele, thr)
Engine Req. .09-.19 in³ (.58-1.23 cm³) 2-Stroke