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  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
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  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition

F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition

SKU: F3A-1
Contra-Rotating Propellers eliminate the gyroscopic effects that exist when flying with a single propeller. Gyroscopic effects cause an airplane to yaw whenever the elevator is applied. The more elevator that is applied, the greater this yawing effect. Co
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  • Ships From:
    China
  • Optional:
    Contra-Rotating
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  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
  • Description
F3A Contra Rotating Propeller Drive System for use in F3A Pattern Competition
1. The motor shaft and the middle one are made of titanium alloy. 
The lightweight is better for F3A flight.

2. The plastic gear is strong enough which hardened on the surface.

3. we have tested it with this motor, it saves electricity

4. And the gear material we use oily plastic, which is wear-resistant and quiet

 

Motor Prop  Performance Gear Ratio
1:4
Original Falcon F21X20R21X20 Banery (mah> P19 2800-3500
F19 3500-4000
Speed Horizontal 85-90
Vertical 75
Current Draw (A) Static 75
Max Horizontal 63
Vertical 68
align 700MX Falcon F21X20R21X20 Banery (mah> P19 2800-3500
F19 3500-4000
Speed Horizontal 85-90
Vertical 75
Current Draw (A) Static 75
Max Horizontal 63
Vertical 68
 
Selecting the Right Gear Ratio
All available gear ratios are listed in the following table:
Props Gearset Downline Braking Horizontal Speed Vertical Pulling Power
22x18 Rear, 22x18 Front 1:4 +++ + +++
22x20 Rear, 22x20 Front ++ ++ ++
22x22 Rear 22x22 Front + +++ ++
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