This is the radio controlled, glow or gas powered, Almost-Ready-to Fly,
Great Planes 1.60 25% Yak 54 1.60/43cc Sport 3D Airplane.
Fully 3-D and IMAC Capable, IMAA Legal
For Intermediate to Advanced Modeler/Fliers.
FEATURES: Construction: Balsa and plywood
Wings: two-piece, built-up, wood with aluminum joiner tube
Covering: Factory applied Top Flite MonoKote, color scheme is White -
TOPQ0204, Metallic Blue - TOPQ0402, and Metallic Red - TOPQ0405
Radio Compartment: Plywood construction
Cowling: Factory painted, fiberglass construction
Canopy: Clear canopy with factory painted Silver trim
Wheel Spats: Factory painted in Metallic Red
Landing Gear: Pre-formed aluminum .16" (4mm) thick, White in color
Wheels: Two 4" (101mm) diameter foam main wheels
Tailwheel: Coiled spring wire with 1" (25mm) rubber tailwheel
control: Ganged dual servo, pull-pull for glow engines or tail
mounted dual servo control for gas engine (for balancing purposes)
Control: Dual servo (one servo in each wing half)
control: tail mounted dual servo control
Spinner: 4" (101mm) diameter aluminum, 2 bladed spinner
Engine Mount: Great Planes 1.20-1.80 nylon adjustable - GPMG1101
Fuel Tank: 24oz (710cc) (6x2.5x3")
Hardware: 4-40 size pushrods, heavy-duty control horns, hinge point
hinges, pull-pull system for the , & miscellaneous screws
Building Time: Ready to fly in only 20-25 hours.
Warranty: Great Planes Model Manufacturing Company guarantees this
kit free from defects in both materials and workmanship at date
of purchase.
INCLUDES: Pre-built and covered wings, and tail assemblies, pushrods,
decals pre-bent main landing gear, tailwheel wire, 4" main wheels,
1" tailwheel, adjustable engine mount, 24oz fuel tank, 4" spinner,
aluminum wing tube, hardware package and photo-illustrated manual.
For a complete list of contents see page 7 of the online manual
REQUIRES: Engine: 1.6-1.8 cu in (25-30 cc) 2 stroke - OSMG0661
OR 1.8-2.1 cu in (30-36 cc) 4 stroke
OR 1.9-2.6 cu in (32-43 cc) gasoline
Muffler: Pitts-Style (Engine mounts on its side) - BISG4116
Radio: 6-channel radio with electronic mixing recommended for
ultimate 3D flight performance
Servos: 7-standard size (2-, 2-, 2-, 1-throttle)
with at least 98 oz-in of torque (44 oz-in is fine for the )
Servo Extension 6": 2 required for forward mounted
Servo Extension 12": 1 required for servo - HCAM2711
Servo Extension 24": 2 required for - HCAM2721
Servo Extension 36": 2 required for - HCAM2726
Servo Extension 36": 2 required for tail mounted (gas)
: qty. 2 required 1 for & 1 if using a radio
that does not support channel mixing - HCAM2751
reverse type: 1 required for the servo if using a
radio that does not support channel mixing - FUTM4150
Misc. Items:
fuel filter, propeller, building and field equipment.
SPECS: Wingspan: 81" (2057mm)
Length: 68" (1727mm)
Weight: 12.5-15.25 lbs. (5670-6917g)
Wing Area: 1138 sq. in. (73.51 sq dm)
: 25-30 oz/sq. ft. (76.2-91.5 g/sq dm)
Airfoil: fully symmetrical, mid wing placement
: 5-1/8" (130mm) Back from the wing's
Wing Incidence: 0°
Stab Incidence: 0°
Engine Thrust: 2° right, 0° down
Control Throws- 3D Rate High Rate Low Rate
: 2½" (64mm) 1¼" (32mm) 7/8" (22mm)
: 4" (102mm) 2½" (64mm) 1" (25mm)
: 2¼" (57mm) 1" (25mm) 7/8" (22mm)
COMMENTS: In the accessory completion guide for this model we have gone with
a 6-ch radio and glow engine installation. If you are using a
radio with channel mixing or are installing a gas engine
please read the YAK manual online for information on accessories
required for your installation.
The pilot shown on the box is not currently available.
Wing joiner tube is GPMA2880.
If a replacement fuel tank is needed, order the Sullivan 24oz
tank (SULQ1444), or the DuBro 24oz tank (DUBQ0224).
Some minor trimming and modifications may be required.
kpm02/21/2006
ir/jxs
updt jxs 11/16/09
Click here for Units of Measure Conversion Calculators
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