Great Planes Extra 300S 60 GP Kit .61-.90, 64"

Tower Stock# LXJ580  •  Manufacturer Stock# GPMA0236
  • front/side (see larger view)
  • rear/side (see larger view)
WARNING: Drilling, sawing, sanding, or machining wood products generates wood dust and other substances known to the State of California to cause cancer.
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Notes from our tech department:
This is the Great Planes Extra 300S Aerobatic .60 size Sport-Scale Kit.
The Lightness of the Airframe, Allows it to Virtually Leap Into the Air.
Tracks Like It's Wire-Guide Whether Flying Straight and Level or With the
Crisp Precision of Square Loops Snapping With Start and Stop Command.


Simple D-tube wing construction and a Lock and tab fuselage
Twin aileron servos, giving more control authority and simplifying
Twin metal elevator pushrods for precision adjustment and rigidity.
Option for twin elevator servos, simplifies radio set up, tightens
linkages, and ensures enough servo power for the larger of the
recommended engines.
Balsa sheeted turtle deck requires little sanding to get true shape
Large fuselage for easy radio installation, with enough room for a
smoke system that would make an air show performer proud.
Heavy Duty 2-piece ABS cowl and detailed instrument panel
CAD generated plans and photo-illustrated instructions
Duraluminum landing gear with strong, torsional mounting rails


All wood to build the kit, pushrods, hardware package, ABS cowling,
Butyrate canopy, photo illustrated instructions, CAD generated
rolled plans, pre-formed Duraluminum main landing gear and ABS
wheel pants.


Engine: .61-.90 (2-stroke) or .91-1.20 (4-stroke)
Radio: 4+ channel (twin ail & twin elev can use channels 5 & 6)
Servos: 5-6 (6th servo is optional 2nd elevator servo)
Two 12" servo extension wires (two for ailerons)
Two Y-harnesses (one for ailerons and one for elevators)
Two-rolls of main color covering and one-roll of trim color covering
and matching paint.
Misc. Items: fuel tubing, 12-14oz tank, propeller, " foam rubber,
1/16" wing seating tape, 2" spinner, two 2" wheels,
3/16" wheel collars, easy fueler, 1/5 scale pilot, building and
field equipment.


Wingspan: 64"
Wing Area: 744 sq in THROWS: hi low
Weight: 7 - 7.5lb Ele 1" u/d " up/dwn
Wing loading: 21.7-23.25oz/sq ft Rud 2" l/r 1" l/r
Fuselage length: 54.25" Ail 5/8" up/dwn " up/dwn
Fin area: 80.38 sq in
Stabilizer area: 153.25" CG 4-1/8" fr LE @ root of wing
Stabilizer span: 24.57" +/- 3/8"


The fuselage plans are 75% Size instead of full size. The wing plans
are full size.
JAL 8/3/98
The replacement nylon adjustable engine mount is GPMG1091.
Decal sheet EXT6D01 sold only through GP Manufacturing includes:
Two 4" x 1" Red & Blue stars with "motion" stripes
Two 4" x 7/8" Red, Black & White Great Planes logos
Two 2" x 2-3/8" GP Aerobatic Team logos
Two 1-3/8" x 7/8" Red, White & Blue American flags
Two 1-1/8 x 11/16" Red, White & Blue American flags
Two 5" x 11/16" White Extra 300S logos
One 5-5/8" x 1" Black, Blue, Red & White instrument panel

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