BNF Planes: What Bind-N-Fly Means and How to Choose One
BNF stands for Bind-N-Fly: the plane comes with motor, ESC, servos and a receiver already installed, but without a transmitter. You “bind” it to a compatible radio you already own and fly. BNF Basic versions also leave out the battery and charger. BNF makes sense once you have a good radio: each new plane costs less than an RTF version, and you fly everything with the same transmitter. The key is protocol compatibility, since a BNF plane’s receiver only works with radios that use the same protocol.
By Kyle HilsonUpdated: October 20263 min read
BNF vs other terms
| Term | Includes | You add |
|---|---|---|
| RTF (Ready to Fly) | Everything, including transmitter | Usually nothing |
| BNF (Bind-N-Fly) | Plane, electronics, receiver | Compatible transmitter (and battery/charger for “Basic”) |
| PNP / PNF | Plane, motor, ESC, servos | Receiver, transmitter, battery |
| ARF | Mostly built airframe | All electronics and power |
Protocol compatibility
A BNF receiver uses a specific radio protocol. Many BNF planes from Horizon Hobby brands use Spektrum DSM2/DSMX; other makers use their own or open protocols. Your transmitter must speak the same protocol, either natively or via a multi-protocol module. Check this before buying. How protocols and binding work is explained in understanding RC transmitters.
Binding a BNF plane
- Create a new model memory on your transmitter (often from the maker’s template).
- Put the plane’s receiver in bind mode (often by powering it with a bind button pressed, or automatically).
- Start bind on the transmitter with throttle down.
- When bound, set failsafe if needed and check control directions.
- For planes with stabilisation (e.g. AS3X/SAFE), set the mode switches as the manual describes.
Why choose BNF
Once you own a good computer radio, BNF saves money and clutter: no extra cheap transmitters, and every plane is flown with the same familiar sticks and switches. Model memories store each plane’s settings. Many pilots start with an RTF trainer, then buy a better radio and switch to BNF for all later planes. Beginner RTF options are listed in best RC planes for beginners.
Choosing a BNF plane
- Receiver protocol matches your radio.
- Battery type and size you can buy or already own.
- Your skill level: trainer, sport, warbird or jet.
- Stabilisation and flight modes if you want them.
- Spare parts available.
Common mistakes
Buying a BNF plane that doesn’t match your radio’s protocol is the most common mistake, followed by forgetting that “BNF Basic” means no battery or charger. Another is flying without checking control directions after binding: a reversed channel can crash a new plane on take-off. Always do a full control check before every first flight.
Choosing a radio for BNF
If you plan to buy several BNF planes, pick a radio carefully. A computer radio with many model memories, flight-mode switches and telemetry will serve for years. Make sure it supports the protocol used by the planes you like, natively or through a multi-protocol module. Radios with good simulator support also let you practise new planes before flying them. A good radio is one of the best long-term investments in the hobby because it outlives many planes.
First flight after binding
Check that each control moves the right way, set dual rates and expo, confirm the stabilisation modes work, and range-check before the first flight. Take off in calm conditions and trim the plane before trying anything ambitious.
FAQ
What does BNF mean?
Bind-N-Fly: everything except the transmitter.
Can any transmitter bind to a BNF plane?
Only one that uses the same protocol.
What’s BNF Basic?
BNF without battery and charger.
BNF or PNP?
BNF includes a receiver; PNP doesn’t.
More on this topic: the complete RC Airplanes guide covers the basics behind this article.
About 20 years in RC. Mostly boats in the NAVIGA Mini Eco Expert class, with many self-made parts; also a King Motor Baja 5B, a home-built electric plane, home-built nitro planes he has flown, and an RC helicopter. More about SwellRC
