SIG 4-Star 20 .15-.25 GP/EP Kit 48"

Tower Stock# SIGA0106  •  Manufacturer Stock# SIGRC106
Notes from our tech department:
This is the Radio Controlled, Electric or Glow Powered,
Four-Star 20 Kit from Sig.
For intermediate flyers who have mastered trainers.


Construction: Laser cut balsa and ply, tab locked fuselage
Wing: One-piece with spruce spars
Aileron Control: Dual servo
Canopy: Clear molded plastic
Cowl: Molded plastic
Landing Gear: One-piece prebent aluminum, steerable tailwheel
Engine Mount: Two-piece glass filled


All wood required to build kit, cowl, landing gear, hardware, full-
size plans, canopy, decals and instruction manual


Radio: 4-channel
Servos: Four mini (2-aileron, 1-rudder, 1-elevator) 1 throttle servo
if using glow engine
Y-Harness: For aileron servos
Glow Power-
Engine: 2-Stroke .15 - .25 cu in (2.4 - 4.1 cc)
Engine Mount: Sig brand engine mount recommended
Fuel Tank: 4oz
Fuel: 5 - 15 aircraft blend nitromethane model fuel
Electric Power-
Brushless Motor: 200 - 300 watt outrunner with radial type mount
Electronic Speed Control: To match selected motor
LiPo Battery: 3S1P, at least 2200mAh
Battery Charger: To match selected battery

Propeller: Depending on selected motor or engine
Main Wheels: Two 2.5 (63mm)
Tail Wheel: 34 (20mm)
Spinner: 2 - 2-14 (51 - 57mm)
Covering: One and one half rolls of lightweight iron-on
Building and Field Equipment
Battery: 3s LiPO battery with connectors to match chosen ESC.


Wingspan: 48 (1219mm)
Wing Area: 430 sq in (27.7 sq dm)
Wing Loading: 13.4ozsq ft (40.8 gsq dm)
Length: 38 (965mm)
Flying Weight: 2.5lbs (1130g) w250-watt motor & 3S1p 2200mAh LiPo
Airfoil: Semi-symmetrical
Configuration: Low wing
Wing Incidence: +12
Control Throws
Elevator (up & down): 12 (12.7mm)
Ailerons (up & down): 516 (8mm)
Rudder (left & right): 78 (22mm)
Center of Gravity: 2-38 - 2-34 (60 - 70mm) from leading edge of
wing measured at the fuselage side

jxs 012115
JMM 8200 23NOV15



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