This professionally matched four-servo competition power system is developed for the MadBull, PittsBull, LiL Fokker, Rextra 260, Jungmeister, and similar lightweight EPP aircraft. It provides fast throttle response, precise control, and transmitter-controlled reverse thrust for advanced 4D flight. Choose between the lightweight PP4-A servo package and the high-speed PP4-B servo package, then bundle and save with a proven system that costs less than purchasing the components individually.
3D/4D Competition System Overview
Two Servo Package Options
Servo Options
PP4-A or PP4-B
Flight Modes
3D / Reversible 4D
Choose Your Servo Package
Select PP4-A
Lightweight PP4-A Servo Package
Choose PP4-A for four matching lightweight digital servos that minimize installed weight while providing precise four-servo control.
Select PP4-B
High-Speed PP4-B Servo Package
Choose PP4-B for four matching high-speed digital servos with CNC-machined aluminum cases, metal gears, and rapid control response.
Purchase Selection: Choose either PP4-A or PP4-B from the product’s Type menu before adding the system to your cart. The package includes only the selected four-servo set, not both servo options.
Traditional 3D and Reversible 4D Performance
Use the system as a responsive forward-only 3D setup or configure transmitter-controlled reverse thrust for advanced 4D maneuvers. Both servo choices include the same matched 1950KV motor, reversible ESC, and 3D and 4D propellers.
Included With Either Servo Option
1 ×
High-RPM reversible brushless outrunner
1 ×
6V / 3A switching BEC
1 ×
5 mm hub for reversible 4D flight
Additional Items Required
Airframe
Compatible four-servo EPP aircraft
Flight Battery
2S or 3S 600 mAh LiPo
Airframe, battery, receiver, transmitter, charger, and adhesives are not included.
Aircraft Compatibility: Recommended for the MadBull, PittsBull, LiL Fokker, Rextra 260, Jungmeister, and similar four-servo EPP aircraft. The system may also be used in the Extra NG, although these servos are smaller than those included in its standard matched power system.
No Low-Voltage Cutoff: The V17R does not provide low-voltage cutoff protection. Use a flight timer and monitor battery voltage to prevent excessive LiPo discharge.
Important Initial Setup: The transmitter’s throttle range must be calibrated before the ESC will arm and operate correctly.