Are you a novice R/C pilot looking to move up from a high-wing trainer?
Are you an intermediate pilot looking for a fully aerobatic sport model?
Or are you an advanced pilot looking for a kit that builds fast and is just plain fun?

Look no further!

The Mid-Star 40 is your answer!

The Mid-Star 40 is a great way to launch into the wild world of aerobatics. When you're ready to return to earth, the Mid-Star 40 will settle down for slow, gentle landings every time. Novices and experts alike will appreciate the removable fuel tank hatch the stylish canopy that comes off with one screw, and the simple overall design. The structure is sturdy enough for the toughest weekend flying. If you're looking for sport flying at its best, you'll find it in the Mid-Star 40.

Wingspan 64.5 in 1638 mm
Wing Area 630 sq in 41.7 dm²
Length 47.5 in 1207 mm
Flying Weight 5 lb 2268 g
Wing Loading 18.3 oz/sq ft 55.7 g/dm²
Radio Required 4-Channel (not included)

Engine Required
(not included)

Set Up Specifications




















2-Stroke .30 - .40 cu. in. (4.9 - 6.5 cc)
4-Stroke .40 - .50 cu. in. (6.5 - 8.2 cc)


Elevator     1/2 inch 13 mm Up and Down    
Rudder   1      inch  25 mm Right and Left  
Ailerons     3/8 inch 10 mm Up      
      5/16 inch 8 mm Down    
Center of Gravity 0      inch 0 mm At Main Spar  
Dihedral   1      inch 25 mm Pre Wing Panel  
Incidence   +1/2 degree wing, 0 degree stabilizer      
Engine Offset 0 degree down, 0 degree right      
    English Metric Number Required  
Pilot   2      inch 51 mm 1    
Main Wheels 2.75 inch 70 mm 2    
Nose Wheel   2.25   57 mm 1    
Fuel Tank   8 ounce 237 cc 1    
Spinner   2      inch 51 mm 1    
Covering   3 rolls depending on trim scheme  

  • Laser-Cut LitePly Fuselage
  • Simple Balsa Wing Design
  • Pre-Cut Tail Surfaces
  • Builds Fast
  • Sig Easy Hinges
  • High Performance
  • Mid Wing Stability
  • Full-Size Plans
  • Photo-Illustrated Assembly Manual
  • 2 Big Decal Sheets

  • Mid-Star 40 Kit Instruction Manuals
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    Complete Pdf (2.5Mb) Dowload

    Collections: KITS, SIG KITS

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