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SIG Four-Star 20 EP
SIG Four-Star 20EP
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SIG Four-Star 20 EP

Item Id: SIGRC106
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Retail Price: $129.46
Your Savings: $42.47
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Building on the 20-year reputation of the original Four-Star line of great SIG sport airplanes, we bring you this highly-requested version designed for electric power. Like it’s older siblings it retains the easy and relaxed flying characteristics of the Four-Stars. Open the throttle and increase the control throws and it will do about any wild maneuver your thumbs can dream up. Add to this the portability of a smaller size and the quietness and convenience of electric power and you have another winner for sport flying. While designed for electric power, it is configured to easily convert to glow engine power in the .15 to .25-engine range so you have the best of both worlds.



• Laser cut parts

• Full size plans

• Light weight balsa construction except for key parts

• Fast building wing

• Tab locked fuselage

• Photo illustrated instruction manual

• Durable aluminum landing gear

• Molded canopy

• Molded cowl

• SIG Easy Hinges

• Large decal sheet

• Pushrods

• Hardware pack


Wing Span: 48 in. (1219 mm)

Wing Area: 430 in² (27.7 dm²)

Length: 38 in. (965 mm)

Flying Weight with

250-watt motor and

3s1p 2200 mAh lipo: 2-1/2 lbs. (1130 g)

Wing Loading: 13.4 oz./sq. ft. (40.8 g/dm²)

Radio Required: 4-Channel with 4 mini servos

Prop: 9x6 APC ThinElectric

Power Required: 250 to 350 watt electric motors 

                           or .15 to .25 glow engines

Video 2