The Black Belt of Slope Soaring
The Japanese Ninja is a master of all the oriental fighting forms. We've given the name "Ninja" to this slope soaring glider because of its all around ability to excel on the slopes.

The Ninja was designed to be the ideal model for your first try at aerobatic slope soaring. It has the aerodynamic shape you need to penetrate the strong winds present on the slope. The Ninja wing uses the Eppler 374 airfoil because of its fast speed, gentle stall characteristics, and excellent aerobatic performance. Loops, rolls, spins, and inverted flight are routine and easy with the Ninja.

Easy To Build Kit

Modelers who value their flying time want to spend less time in the workshop and more time on the slope. The Ninja has a foam core wing, a die-cut lite-ply fuselage, and sheet balsa tail surfaces to help you get it in the air quick.

Wingspan 58 in 1473 mm
Wing Area 500 sq in 32.3 dm²
Length 39 in 991 mm
Flying Weight 30 - 34 oz 850 - 964 g
Wing Loading 8.6 - 9.8 oz/sq ft 26 - 30 g/dm²

Radio Required
(not included)


Set Up Specifications













2-channel (ail, elev, rud) or
3-channel (ail, elev, rud)


Elevator     3/8 inch 10 mm Up and Down    
Rudder     1/2 inch  13 mm Right and Left  
Center of Gravity 4  1/4 inch 108 mm Back at root  
Dihedral   1      inch 25 mm Pre Panel    
Incidence   +1/2 degree wing, 0 degree stabilizer      
Engine Offset 0 degree down, 0 degree right      
    English Metric Number Required  
Covering   3 rolls depending on trim scheme  

  • Precision-Cut Foam Wing Cores
  • 1/16" Balsa Wing Sheeting
  • Die-Cut Lite-Ply Fuselage
  • Shaped Balsa Nose Block
  • Sheet Balsa Tail Surfaces
  • Bolt-On Wing Attachment
    • Quick Release Hatch For Easy Access To Radio
    • Accepts Standard Size Radio Gear
    • Nylon Tubing Pushrods
    • SIG Easy Hinges
    • Complete Hardware Pack
    • Photo-Illustrated Assembly Manual
    Ninja Kit Instruction Manuals
    Click title to open in a new window.
    Complete Pdf (2.4 Mb) Download

    Collections: KITS, SIG KITS

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