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SIG - SIGA0075 SIGSIGRC76 SIGRC76 614380510761 0614380510761
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SIG Somethin' Extra Kit .40-.46,51.5"
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SIG Somethin' Extra Kit .40-.46,51.5"
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Instruction Manuals: Manual 1 (1969 KB)
Tower Catalog Page: 40

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Tech Notes
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: 2-1/4" (57mm) diameter
Main Wheels: Two 2-3/4"
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 g/sq 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): 1-1/4" (32mm) 2" (51mm)
Ailerons, (up & down): 1" (25.4mm) 2" (51mm)
Rudder, (left & right): 1-7/8" (48mm) 2-1/4" (57mm)

jxs 03/03/15

– If you need more information, use these SIG resources –
Phone: 641-623-5154   Postal Address:
PO BOX 520

Click here for Units of Measure Conversion Calculators

Accessories Needed
This is the Glow Powered Sig Somethin' Extra Aerobatic Airplane Kit. FEATURES: Balsa & ply construction, decals, REQUIRES: 4-ch radio, 4 standard size servos, AA cells .40-.46 2-stroke OR .56-.65 4-stroke engine, fuel, covering, fuel tank, wheels, spinner

Accessories for the SIG Somethin' Extra Kit .40-.46,51.5"

Primary Accessories Radio & Engine Equipment Building & Field Equipment Optional Accessories
  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
 LXAZD1 Dubro Mini Lite Wheels 1" (2)
Qty Discount Available
2.99   In Stock
 LXD717 Dubro S8 Square Fuel Tank 8 oz
Qty Discount Available
4.99   In Stock
 LXNK66 Futaba FBC19B4 Dual AC Wall Charger
Qty Discount Available
19.99   In Stock
 LXK135 Great Planes Easy Fueler Valve Glow
Qty Discount Available
13.99   In Stock
 LXK149 Great Planes UltraLite Wheels 2-3/4" (2)
Qty Discount Available
5.99   In Stock
 LXNRJ9 Hobbico HydriMax NiMH 4C 4.8V 2000mAh Square AA Rx U
Qty Discount Available
17.99   In Stock
 LXL430 Hobbico Latex Foam Rubber 1/4"
Qty Discount Available
3.99   In Stock
 LXHY24 Top Flite 10x6 Power Point Propeller
Qty Discount Available
2.49   In Stock
 LXJUJ6 Tower Hobbies AA Slim Glow Starter
Qty Discount Available
9.49   In Stock
 LXRXC4 Tower Hobbies TOWER Power 10% Airplane Fuel Quart
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7.59   In Stock
Subtotal for this Group of Accessories: 89.50  
Click to Order all items listed in this Group of Accessories    Buy This group of Accessories

Primary Accessories Radio & Engine Equipment Building & Field Equipment Optional Accessories

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