Introduced at the 1998 National Model and Hobby Show, the new SIG SOMETHIN’ EXTRA® was a major hit with retailers and consumers alike! The SOMETHIN’ EXTRA® 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.
The SOMETHIN’ EXTRA® 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 dm²
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/dm²
Radio Required
4-Channel with 5 Servos (not included)
Engine Required
(not included)Set Up Specifications
Accessories
2-Stroke .40 – .46 cu. in. (6.5 – 7.5 cc)
4-Stroke .56 – .65 cu. in. (9.2 – 10.7 cc)
Elevator
Low Rate
1 1/4
inch
32
mm
Up and Down
High Rate
2
inch
51
mm
Up and Down
Rudder
Low Rate
1 7/8
inch
48
mm
Right and Left
High Rate
2
inch
51
mm
Right and Left
Ailerons
Low Rate
1
inch
25
mm
Up and Down
High Rate
2 1/4
inch
57
mm
Up and Down
Center of Gravity
3 1/2
inch
89
mm
From leading edge at root
Dihedral
0
degrees
0
degrees
Per panel
Incidence
+ 0 degree wing, 0 degree stabilizer
Engine Offset
0 degree down, 0 degree right
English
Metric
Number Required
Pilot
2
inch
51
mm
1
Main Wheels
2 3/4
inch
70
mm
2
Tail Wheels
1
inch
25
mm
1
Fuel Tank
8
ounce
237
cc
1
Spinner
2.25
inch
57
mm
1
Covering
3 rolls depending on trim scheme
KIT FEATURES
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
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