Four-Star 120 Model Airplane
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Four-Star 120 Model Airplane

The Legend Gets Bigger . . .

Thousands of modelers just like you have already built and flown the SIG FOUR-STAR 40, making it one of the most popular R/C models on the market. Now we've taken all of the unique design features of the FOUR-STAR 40 and reproduced them on a grander scale.
Four-Star 120 Model Airplane
The FOUR-STAR 120 has a near perfect blend of simple construction, classic looks, and outstanding flight performance.

Easy to build lite-plywood fuselage construction, fast building wing, pre-shaped balsa leading edges.
With a wing loading like a trainer, the FOUR-STAR 120 is easy to fly yet will perform all the free-style aerobatics your thumbs can keep up with.

The impressive size of the FOUR-STAR 120 (IMAA legal) makes for smooth aerobatics and ultra-slow landings.

Quality hardware pack includes landing gear, canopy, engine mount, pushrods, hinges, decal sheet, etc.
Four-Star 120 Model Airplane
Optional Molded Plastic Wheel Pants. Order No. SIGSH744

Wingspan 81 in 2057 mm
Wing Area 1205 sq in 77.7 dmē
Length 65 in 1651 mm
Flying Weight 10.5 - 12 lb 4760 - 5440 g
Wing Loading 20 oz/sq ft 61 - 70 g/dmē
Radio Required 4-Channel with 5 servos (not included)
Engine Required
(not included)
2-Stroke .90 - 1.20 cu. in. (15 - 20 cc)
4-Stroke 1.20 - 1.60 cu. in. (20 - 26 cc)

KIT FEATURES
  • Simple Lite-Ply Fuselage Construction
  • Fast-Building Wing with Spruce Spars
  • Shaped Blasa Leading Edge - No Carving!
  • Complete Hardware Package and Pushrods
  • Rugged Formed Aluminum Main Landing Gear
  • Formed Tailwheel Wire and Nylon Bracket
  • Machine-Cut Sheet Balsa Control Surfaces
  • Outstanding Slow Speed Characteristics
  • Universal-Design Engine Mounts
  • Laser Cut Parts
  • Sig Easy Hinges
  • IMAA Legal
  • CAD Drawn Plans for Precise Fit
  • Photo-Illustrated Assembly Manual
  • Performs Smooth Aerobatic Maneuvers
  • Three Big Decal Sheets
Four-Star 120 Kit Instruction Manuals
Click each title to open in a new window.
Wing Construction
Fuselage Construction
Covering & Finishing
Complete Pdf (2.7 Mb) Download


For more information and option to buy link to:
www.sigmfg.com