SIG Somethin' Extra GP Kit .40-.46,51.5"

Tower Stock# LXEZHU  •  Manufacturer Stock# SIGRC76
Notes from our tech department:
This is the Glow Powered, Radio Controlled
Somethin Extra Airplane Kit by Sig.
Capable of extreme aerobatics, ideal as a Club Contest airplane.


Construction: Laser cut balsa and ply
Wing: Two-piece with aluminum wing joiner
Aileron Control: Dual servo
Engine Mount: Two-piece glass filled composite
Landing Gear: Pre-formed and pre-drilled 090 hardened aluminum,
tailwheel wire
Wheel Pants: Two-piece plastic
Canopy: Clear molded plastic


All required Balsa and Plywood
Landing Gear
Sig Easy Hinges
Clear Plastic Canopy
Engine Mount
CAD Drawn Plans
Instruction Manual
Hardware Pack


Radio: 4-Channel with 5 standard size high torque servos
Y-Harness: For aileron servos
6 (152mm) Extensions: Two for aileron servos
Engine: .40 - .46 cu in (6.5 - 7.5 cc) 2-stroke OR
.56 - .65 cu in (9.1 - 10.6cc) 4-stroke
Fuel Tank: 8oz (240cc)
Spinner: 2-14 (57mm) diameter
Main Wheels: Two 2-34
Tailwheel: 1
Covering: Two rolls
Prop, glow starter, fuel, building and field equipment


Wingspan: 51.5 (1308mm)
Wing Area: 614 sq in (39.6 sq dm)
Length: 48.25 (1225mm)
Flying Weight: 4.25 - 4.75 lbs. (1928 - 2155 g)
Wing Loading: 15.9 - 17.8 oz.sq ft (48.7 - 54.4 gsq dm)
Configuration: Mid wing
Airfoil: Fully symmetrical
Center of Gravity (CG): 3.5 (89mm) aft of leading edge of wing
measured at the fuselage
Control Throws: Low Rate High Rate
Elevator, (up & down): 1-14 (32mm) 2 (51mm)
Ailerons, (up & down): 1 (25.4mm) 2 (51mm)
Rudder, (left & right): 1-78 (48mm) 2-14 (57mm)

jxs 030315



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