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Glossary
RC and FPV Gear terms, explained
Short, plain definitions of the words you'll see on product pages and spec sheets. Each one links to a guide when there's more to know.
B
- Balance charging
- Charging that keeps every LiPo cell at the same voltage. Read the guide →
C
- C rating
- A battery's claimed continuous discharge capability. Read the guide →
E
- EdgeTX
- Open-source firmware for RC transmitters. Read the guide →
- ESC
- Electronic speed controller, which controls motor speed from the receiver signal. Read the guide →
- ExpressLRS
- An open-source, low-latency radio control protocol. Read the guide →
K
- kV
- A brushless motor's unloaded rpm per volt. Read the guide →
L
- LiPo
- Lithium polymer battery, the standard RC power source. Read the guide →
P
- Portal axle
- An axle with gear hubs that raise clearance and reduce torque twist. Read the guide →
R
- Remote ID
- Broadcast identification required for drones that must be registered with the FAA. Read the guide →
- RTR
- Ready to run: assembled with electronics installed. Read the guide →
S
- Scale
- The size of a model compared with the real vehicle, such as 1/10. Read the guide →
- Sensored
- A brushless motor with a position sensor for smooth low-speed control. Read the guide →
V
- VTX
- Video transmitter on an FPV drone. Read the guide →