WAS $525.00
NOW $472.49
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Amazingly aerobatic, with superior handling.


Looking for aerobats that are as easy to fly as they are easy to assemble? Look no further than 51.5" (1308mm) span Somethin' Xtra GP/EP ARFs from SIG Aircraft! Available in Red and Green, both choices offer the choice of glow or electric power, a two-piece wing with aluminum joiner tube, a removable magnetic top hatch, a painted fiberglass cowl, dual aileron servo set-up and more.

  • Designed for glow or electric power.
  • Factory-build and covered airframe.
  • 2-piece wing with aluminum joiner tube.
  • Magnetic, removable hatch for easy access to the battery/radio compartment.
  • Painted fiberglass cowling and wheel pants.
  • Dual aileron servo set-up.
  • Aluminum landing gear.
  • Plywood bolt-down battery tray.
  • Complete pushrod and hardware package.
  • Illustrated assembly manual.
This is the Radio Controlled, Glow or Electric Powered Sig Almost Ready to Fly Somethin' xtra low Wing Airplane in Red
The Somethin' Extra is designed for all out aerobatic performance while maintaining comfortable handlng characteristics.

Construction: Balsa and ply
Wing: Two-piece with super strong aluminum wing joiner tube
Aileron Control: Dual servo
Cowl: Factory painted fiberglass
Wheel Pants: Factory painted fiberglass
Covering: High quality premium polyester self adhesive
Landing Gear: One-piece prebent aluminum, 2.5" (63mm) main wheels
1" (25.4mm) diameter rubber tailwheel
Spinner: White plastic 2.25" (57mm) diameter
Motor Mount: Pre-assembled plywood
Engine Mount: Two-piece composite
Fuel Tank: 12oz (360cc) approximate
Hatch: Wooden, attaches magnetically to the fuselage for easy access
to the battery/radio compartment

Pushrod and hardware package
Pre-build and covered wood fuselage, wing and tail sections
Fuel tank
Instruction Manual
Aluminum Landing Gear and Fiberglass Cowling and Wheel Pants
Painted pilot
Electric Power-
Brushless Motor: 700-1000 watt 650-800 kV
ESC: Compatible with selected motor
LiPo Battery: 4-6S 3000-4000mAh
Battery Charger: Compatible with selected batery

Glow Power-
Engine: .40-.46 cu in two-stroke, or .53-.65 cu in four-stroke
Fuel, glow starter, propeller, building & field equipment
Radio: 4 channel with 5 standard servos (Glow) or 4 servos for electric
Y Harness: For aileron servos
Extensions: Two 6" for aileron servos
Wing Span: 51.5" (1308mm)
Wing Area: 725 sq in (46.7 sq dm)
Length: 48.25" (1226mm)
Flying Weight: 5-5.5 lbs (2268 - 2495)
Wing Loading: 16.0 - 17.6 oz/sq ft (48 - 53 g/sq dm)
Center of Gravity (CG): 3-5/8 - 4-5/8" (92 - 111mm) back for the
leading edge of the wing at the fuselage side
Control Throws Low Rate High Rate
Elevator (up & down): 1" (25.4mm) 1-1/2" (38mm)
Ailerons (up & down): 7/8" (22mm) 1-3/8" (34mm)
Rudder (right & left): 1-5/8" (41mm) 2" (51mm)

If a replacement fuel tank is needed, the DuBro 12oz Square Tank
(DUBRO212) may be used. Some trimming and modifications may be required.


Barcode # 0614380516763
Brand SIG
Shipping Weight 4.0000kg
Shipping Width 1.040m
Shipping Height 0.200m
Shipping Length 0.420m
Shipping Cubic 0.087360000m3

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