This is the Great Planes Yak 55M 50-55cc Sport/3D ARF Airplane. This airplane is recommended for experienced pilots and is IMMA and IMAC Legal.
Features:
Made of balsa and plywood
Top Flite MonoKote covering
Two-piece wing with aluminum wing tube
Clear canopy with painted frame lines
Radio compartment is made of plywood and easily accessed under canopy
Painted fiberglass cowl with plastic dummy radial engine detail
Painted fiberglass wheel spats
Dual servo aileron control (high torque servos required)
Main landing gear, prebent aluminum 0.20"(5mm) thick
Tail, carbon fiber tailwheel assembly
Main wheels, 4" (102mm) foam, tailwheel, 1" (25.4mm) rubber
Approximately 16oz (480cc) fuel tank
Warranty (through the manufacturer): Great Planes warrants this kit to be free from defects in both material and workmanship at the date of purchase. This warranty does not cover any component parts damaged by use or modification.
Five years after the infamous Yak-55 took the Soviet team to number one at the 1984 World Aerobatic Championship, the Yak-55M was unleashed, with a faster roll rate and shorter wing that challenged its rival Sukhoi SU-31. Those performance qualities carry over perfectly into Great Planes’s ARF version...hose versatility shows that Great Planes knows exactly what you want in a 50cc aerobatic/3D model.
Includes:
ARF Yak 55M Sport/3D Airplane with landing gear, wheels, decals, wing joiner tube, hardware and instruction manual
Requires:
Radio: At least 6-channel, 9 channel or more recommended
Servos: Ailerons, Two w/at least 150 oz/in torque
Elevator, Two w/at least 150 oz/in torque
Rudder, One w/at least 250 oz/in torque
Throttle & Choke, One with at least 30 oz/in torque
Servo Extensions: One 6" (152mm)
Four 12" (305mm)
Two 36" (914mm)
Receiver Battery: 4.8V, at least 3000mAh
Engine: Two-stroke gasoline, 50 - 55 cu in (3.0 - 3.4 cc) w/muffler, stock & pit's type mufflers will require cutting cowl for proper clearance, tunnel is designed into fuselage for a canister or tuned pipe exhaust system
Ignition Battery: At least 1000mAh
Building and Field Equipment
spec :
Wingspan: 88" (22.35mm)
Wing Area: 1473 sq in (95sq dm)
Wing Loading: 28-31 oz/sq ft (85-95 g/sq dm)
Length: 82.5" (2095mm)
Weight: 18 - 19.5lb (8160 - 8840g)
Configuration: Mid-wing
Airfoil: Fully symmetrical
Center of Gravity (CG): 6.5" (165mm) back from leading edge of wing at fuselage sides
Control Throws
Low Rate
Elevator: 3/4" (19mm) 7 degrees
Rudder: 4" (102mm) 20 degrees
Ailerons: 3/4" (19mm) 8 degrees
High Rate
Elevator: 1-1/4" (32mm) 12 degrees
Rudder: 6" (152mm) 42 degrees
Ailerons: 1-3/4" (44mm) 19 degrees
3D
Elevator: 4" (102mm) 42 degrees
Rudder: 8" (203mm) 63 degrees
Ailerons: 2-1/2" (64mm) 27 degrees