Great Planes Ultimate Biplane ARF 1.6-1.8,65"

Tower Stock# LXKJB5  •  Manufacturer Stock# GPMA1307
Great Planes Ultimate Biplane ARF 1.6-1.8,65
Notes from our tech department:
This is the radio controlled, glow powered, Almost Ready to Fly
Great Planes Ultimate Biplane 1.60 Scale Airplane.
For Intermediate to Advanced Modeler/Fliers.
IMMA Legal.


Construction: Balsa and plywood
Covering: Factory applied Top Flite MonoKote, color scheme is White
with Sapphire Blue, Missile Red and Metallic Gold stripes on the
fuselage and wings.
Radio Compartment: Easily accessible plywood reinforced
Fuel Tank: 24oz (710cc) rectangular
Cowling: Red, White and Blue painted fiberglass
Fairings: Red fiberglass
Interplane Struts: White covering, wood construction, threaded rod
with knurled adjustment knob allow for easy installation or
Wheel Pants: Red, White and Blue painted fiberglass
Main Wheels: 3" (88mm) foam
Tailwheel: 1" (25.4mm) foam
Canopy: Clear
Landing Gear: Fiberglass main gear with steel steerable
tailwheel assembly
Aileron Control: Two servos required per wing with minimum torque of
50 oz-in or 75 oz-in for extreme or 3D aerobatics
Engine Mount: Two-piece nylon, adjustable
Spinner: 4" (100mm) polished aluminum
Decal Set: Peel and stick type with all external markings and cockpit
Linkage Setup: Short and direct between servos and control surfaces
with external mounts to simplify set-up and adjustments
Building Time: Ready to fly in as few as 20 hours
Scale details: Functional flying wires
Hardware: Full set of Great Planes heavy duty hardware included
Warranty: Great Planes Model Manufacturing Company guarantees this
kit free from defects in both materials and workmanship at date
date of purchase.


Pre-built fuselage, wing and tail sections, pushrods, fiberglass
main landing gear, tail wire, flying wires, fuel tank, spinner,
wood servo tray and wing joiners, hardware package,
photo-illustrated instruction manual, decal sheet, wheel pants,
interplane struts, canopy and spinner.


Engine: 1.6 - 1.8 cu in (26 - 29cc) 2-stroke glow engine OR
1.8 - 2.1 cu in (26 - 34cc) 4-stroke glow engine OR
1.9 - 2.6 cu in (32 - 43cc) gasoline engine (vertical mount)
Muffler: Pitts style for glow engines
Radio: 4-channel minimum, 7-channel or greater computer radio
with mixing capabilites (preferred)
Receiver Battery Pack: 1000mAh (minimum)
Servos: 7-8 For IMAC flying use:
Ailerons: 4 servos at 98 oz-in torque
Elevator: 2 servos at 98 oz-in torque
Rudder: 1 servo at 100 oz-in torque
or 2 @ 50 oz-in torque
Throttle: 1 servo at 30 oz-in torque

For Extreme 3D Flying use:
Ailerons: 4 servos at 98 oz-in torque
Elevator: 2 servos at 98 oz-in torque
Rudder: 1 servo at 130 oz-in torque
or 2 at 70 oz-in torque
Throttle: 1 servo at 30 oz-in torque

Servo Extension 24": 2 or 4 (rudder, elevator)
Servo Extension 12": 4 (ailerons)
Y-Harness: 2-for aileron servos
Misc. Items:
fuel tubing, fuel filter, propeller, building and field equipment.


Wingspan: 65" (1650mm)
Wing Area: 1446 sq in (93m2)
Weight: 12.5-13.5lb (5440-6120g)
Wing Loading: 10-22 oz/sq ft (58-67 g/dm2)
Length: 72" (1830mm)
Airfoil: Symmetrical
Center of Gravity: 6-3/8" (161mm) Back from the leading edge of the
center section of the top wing
Control Throws- Low Rate High Rate
Ailerons: Up & Down " (19mm) 1" (25mm)
Elevator: Up & Down 7/8" (22mm) 1" (38mm)
Rudder: Right & Left 2" (51mm) 3" (76mm)
3D Ailerons: Up & Down 1-3/8" (35mm)
3D Elevator: Up & Down 2" (70mm)
3D Rudder: Right & Left 5" (127mm)


This kit is covered in the following Top Flite MonoKote colors:
White TOPQ0204 Missile Red TOPQ0201
Metallic Gold TOPQ0404 Sapphire Blue TOPQ0226

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.

jxs 6-16-05
ajw 10/07/05
updt jxs 11/16/09

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