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R/C Helicopter Kits R/C Helicopter Parts - Accessories R/C Helicopters - Electric
R/C Helicopters are a fun activity that can be enjoyed by the whole family! Radio-controlled helicopters (also RC helicopters) are model aircraft which are distinct from RC airplanes because of the differences in construction, aerodynamics, and flight training. At Hobby-On, we carry the widest selection of R/C Helicopters available anywhere.
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Replacement Servo Mechanics: 120SR 3x6x2.5 Bearing (2) One-Way bearing Hub with One-Way Bearing: B450
Replacement Servo Mechanics: 120SR
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List Price: $9.99
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3x6x2.5 Bearing (2)
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List Price: $5.99
Our Price: $4.19
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One-Way bearing Hub with One-Way Bearing: B450
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List Price: $7.99
Our Price: $5.59
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BLH1066B BLH1115 BLH1603
Flybar Control Links (2): B450 3D 4x8x3 Bearing (4) Flybar Weights (2): B450 3D, B400
Flybar Control Links (2): B450 3D
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List Price: $4.99
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4x8x3 Bearing (4)
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List Price: $8.99
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Flybar Weights (2): B450 3D, B400
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List Price: $5.99
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BLH1604 BLH1605 BLH1606
1.4x4x2 Bearing (4) Dampeners 80 (4): B450 Pinion Gear, 11T 0.5M: B450, B400, 200SRX
1.4x4x2 Bearing (4)
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Dampeners 80 (4): B450
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Pinion Gear, 11T 0.5M: B450, B400, 200SRX
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List Price: $3.99
Our Price: $3.49
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BLH1607 BLH1608 BLH1611
3x7x3 Bearing (2) Main Rotor Blade Grip/Holder set: B450 3D 3x8x3.5 Thrust Bearing (2)
3x7x3 Bearing (2)
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List Price: $4.99
Our Price: $4.19
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Main Rotor Blade Grip/Holder set: B450 3D
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List Price: $6.99
Our Price: $4.89
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3x8x3.5 Thrust Bearing (2)
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List Price: $6.99
Our Price: $4.89
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BLH1613 BLH1617 BLH1620
Head Block/Rotor Housing Set: B450 3D Flybar Paddles (2): B450 3D, B400 Washout Base: B450 3D, B400
Head Block/Rotor Housing Set: B450 3D
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List Price: $32.99
Our Price: $23.09
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Flybar Paddles (2): B450 3D, B400
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List Price: $4.99
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Washout Base: B450 3D, B400
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BLH1622 BLH1628 BLH1630
Washout Control Arm Link Set: B450 Aluminum and Composite Swashplate: B450, B400 Anti-Rotation Bracket/Guide: B450, B400
Washout Control Arm Link Set: B450
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List Price: $5.99
Our Price: $4.19
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Aluminum and Composite Swashplate: B450, B400
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List Price: $16.99
Our Price: $11.89
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Anti-Rotation Bracket/Guide: B450, B400
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List Price: $4.99
Our Price: $4.19
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BLH1632 BLH1633 BLH1634
Control/Linkage Ball, Short (10): B450, B400 Ball Link Set (20): B450, B400 Elevator Control Lever Set: B450, B400
Control/Linkage Ball, Short (10): B450, B400
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Ball Link Set (20): B450, B400
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Elevator Control Lever Set: B450, B400
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BLH1636 BLH1637 BLH1640
5x8x2.5 Bearing (2) 5x10x4 Bearing (2) Aluminum Motor Mount Set: B450, B400
5x8x2.5 Bearing (2)
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List Price: $5.99
Our Price: $4.19
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5x10x4 Bearing (2)
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List Price: $5.99
Our Price: $4.19
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Aluminum Motor Mount Set: B450, B400
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List Price: $8.99
Our Price: $6.29
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BLH1641 BLH1642 BLH1643
Hook and Loop Battery Strap: B450, B400 Landing Gear Set: B450 Landing Gear Set, Black: B450
Hook and Loop Battery Strap: B450, B400
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List Price: $3.99
Our Price: $3.35
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Landing Gear Set: B450
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List Price: $4.99
Our Price: $3.49
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Landing Gear Set, Black: B450
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List Price: $4.99
Our Price: $3.49
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BLH1644 BLH1645 BLH1645B
Main Shaft (2): B450 3D One-Way Bearing Shaft and Shim Set: B450, B400 Main Gear (2): B450, 300X
Main Shaft (2): B450 3D
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One-Way Bearing Shaft and Shim Set: B450, B400
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List Price: $4.99
Our Price: $4.19
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Main Gear (2): B450, 300X
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List Price: $9.99
Our Price: $6.99
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BLH1647 BLH1649 BLH1651
   
 
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The various helicopter controls are affected by means of small servo motors, commonly known as servos. A piezoelectric gyroscope is typically used on the tail rotor (yaw) control to counter wind- and torque-reaction-induced tail movement. This "gyro" does not itself apply a mechanical force, but electronically adjusts the control signal to the tail rotor servo. The engines typically used to be methanol-powered two-stroke motors, but electric brush less motors combined with a high-performance lithium polymer battery are now more common and provide improved efficiency, performance and lifespan compared to brushed motors, while decreasing prices bring them within reach of hobbyists. Gasoline and jet turbine engines are also used.
Different R/C Helicopters vary in size and weight.See the model you are interested in for exact size.
Electric:

200 - 250 size = 200mm blades
300 size = 220 - 255mm blades
400 - 450 size = 315 - 350mm blades
500 size = 400 - 440mm blades
550 size = 500- 550mm blades
600 size = 600 - 620mm blades
700 size = 690 - 720mm blades

Nitro:
.30 = 550mm blades
.50 = 600 - 620mm blades
.60 = 690mm blades
.90 = 710 - 720mm blades

Gasser:
Standard = 710 - 720mm blades
Extended Boom = 810mm blades