This is a Radio Controlled, Glow Powered, Balsa and Plywood
Great Planes RV-4 .40 Sport Scale Aerobatic Airplane Kit.
for intermediate to advanced modeler/fliers.
Recommended for modelers who have had trainer airplane experience and
also have mastered flying low wing planes.
FEATURES: Easy interlocking balsa and plywood construction, with built-in
thrust angles and a wing that assembles flat on die-cut tabs.
Wings are one-piece, all wood
Spacious radio compartment allow easy radio gear installation and
quick fuel tank access.
White ABS plastic cowling and wheel pants.
Crystal-clear butyrate canopy.
Cockpit features a triangle roll-over bar and tandem instrument
Fixed, pre-formed aluminum main landing gear.
Dual aileron servos for precision and authority.
The wing can be built with or without flaps. The kit slows well for
easy landings either way.
Generous package of Great Planes hardware includes rod-in-tube
pushrods for smooth control surface operation.
Reinforced nylon Adjustable Engine Mount fits any 2- or 4-stroke
engine within the recommended range.
Warranty: Great Planes Model Manufacturing Company guarantees this
kit free from defects in both materials and workmanship at
the date of purchase.
Wingspan: 54.65" (1388mm)
Wing Area: 631.6 sq in (40.8 sq dm)
Weight: 5.75 - 6.25 lb (2.6-2.8 kg)
Wing Loading: 20.9 - 22.8 oz/sq ft (64.1 - 69.7 g/sq dm)
Length: 49.6" (1260mm)
Airfoil: semi-symmetrical, Low-Wing, Selig 8036
Center of gravity: 3¾" (95mm) back from the wing's leading edge
at the fuselage sides.
Control Throws- Low Rate High Rate
Ailerons: Up & Down ½" (13mm) ¾" (19mm)
Elevator: Up & Down ¼" (7mm) 5/8" (16mm)
Rudder: Right & Left 7/8" (22mm) 1-1/16" (27mm)
Flaps: Down ½" (13mm) 1" (25mm)
Engine down thrust: 2°
Wing: positive 2°
All wood to construct the airplane, pushrods, prebent aluminum
main landing gear, 3/32" tailwheel wire, nylon adjustable engine
mount, hardware package, ABS plastic cowling and wheel pants, clear
canopy, decals, photo-illustrated instructions, full-size rolled
Engine: .40-.52 (6.5-8.5cc) (2-stroke)
OR .48-.70 (8.0-11.5cc)(4-stroke)
Muffler: Pitts-Style is recommended so that the muffler will be
concealed inside of the cowling.
Radio: 4-5 channel
(5-channel with 7 servos for optional flaps)
Servos: 5-7 40 oz-in torque minimum
(2-ailerons, 1-elevator, 1-rudder, 1-throttle)
(2-for optional flaps)
Servo extension 6": 4 (for flaps and receiver)
Servo extension 12": 2 (for ailerons)
Y-harness: (1-for aileron servos) (1-for optional flap servos)
Misc. Items: (2) 2½" main wheels, (1) 1" tailwheel, 2¼" spinner
10 oz fuel tank, glow plug, ¼" foam rubber padding, 3' medium
fuel tubing, fuel filter, propeller, building and field equipment.