Somethin' Extra Model Airplane
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Somethin' Extra Model Airplane

Introduced at the 1998 National Model and Hobby Show, the new SIG SOMETHIN' EXTRAŽ was a major hit with retailers and consumers alike! The SOMETHIN' EXTRAŽ has it all; good looks, incredible performance, SIG quality balsa and ply construction and every part in the kit is laser-cut! This SIG kit can literally be built as fast as the modeler can apply CA glue and set it with accelerator.

Somethin' Extra Model Airplane

The SOMETHIN' EXTRAŽ employs a unique removable wing feature, based on an ultra-light and ultra strong tube system. This allows for super-easy building, transport and storage.
The flying capabilities of this model are virtually unlimited due to its thick airfoil section and very light wing loading. Of course, everything required to build the kit is included, right down to the great looking landing gear and wheel pants.

Wingspan 51.5 in 1308 mm
Wing Area 614 sq in 39.6 dm˛
Length 48.25 in 1225 mm
Flying Weight 4.25 - 4.75 lbs 1928 - 2155 g
Wing Loading 15.9 - 17.8 oz./sq ft 48.7 - 54.4 g/dm˛
Radio Required 4-Channel with 5 Servos (not included)
Engine Required
(not included)
2-Stroke .40 - .46 cu. in. (6.5 - 7.5 cc)
4-Stroke .56 - .65 cu. in. (9.2 - 10.7 cc)

  • 100% Laser-Cut Parts for Absolute Accuracy and Fast Building
  • Famous Sig Quality Balsa and Ply
  • Complete Hardware Packages Included
  • High Quality .090 Hardened Aluminum Pre-Formed and Pre-Drilled Landing Gear
  • Fantastic Performance Using Either .40 - .46 2-Stroke or .56 - .65 4-Stroke Engines
  • Complete Photo-Illustrated Assembly Manual for Fast, Easy Assembly
  • Crystal Clear Canopy
  • Precision Molded Wheel Pants
  • Full-Size CAD-Generated Plans - Rolled
  • Design Incorporates Removable Wing Panels for Easy Storage and Transport
  • The Perfect Club Contest Airplane
Somethin' Extra Kit Instruction Manuals
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Wing Construction
Fuselage Construction
Complete Pdf (1.9Mb) Download

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