📡 Servo
The motor-and-gear unit that turns a channel's signal into physical movement — steering the front wheels, working a plane's control surface, moving a boat's rudder.
What it actually does
The servo is the small geared motor that turns your steering. It takes the position signal from the receiver and holds the wheels exactly where you asked, against everything the surface is trying to do to them — which is why it is one of the components most worth upgrading.
In practice
Servos are compared on torque, usually in kg-cm, and speed, in seconds per 60 degrees. Torque is the ability to hold the wheels where you put them under load; speed is how fast it gets there. Metal gears survive impacts that strip plastic ones, and a waterproof case matters if you run in wet or snow.
Worth knowing
Never force the steering by hand with the servo powered and connected — that is a quick way to strip a gear. Check servo horn screws periodically; a loose horn feels exactly like a failing servo.
Related terms
What a free account actually does
RC Crash Crew remembers your RC so you don't have to. Every run, every battery cycle, every breakage and every fix — kept with the rig it happened to, for as long as you own it. No cost, no advert, no catch.
🏎️ Your garage — the part that works on day one
Build each rig properly: what motor, what ESC, what gearing, what tires. Then keep its whole history in one place.
- Run log — where, how long, how it went
- Battery health — cycles, puffing, when to retire it
- Component hours — what is worn out before it fails
- Setup sheets you can copy between rigs
- Radios and model memory
- Photos, kept with the rig
🔧 When it breaks — and it will
The bit people actually search for at 9pm with a broken car on the bench.
- Crash Bay — log the damage, see what other people broke
- Repair Desk — what you did, and whether it held
- Tune — symptom in, fix out, by chassis type
- RC AI that can see your own rigs and answer about them
📍 Where to run, and what is near you
Tracks, bash spots and hobby shops, on a map, across 28 countries.
- 505 run spots
- 370 hobby shops
- Race nights and events
- Add the ones we are missing — most towns are still blank
📚 Learn it properly, free, no sign-up needed
523 things explained — and none of it is a two-line stub.
- 25 full guides, averaging 1,450 words each
- 447 glossary terms
- A wiki any trusted member can correct
- 195 models and 142 parts on file
Straight with you: the site is new and the crew is small. The tools, the guides, the map and the 505 run spots are all here and working today — the people are what is still missing. If you want a garage that remembers everything, it works from your first run. If you want a busy forum, come back later, or be one of the reasons it gets busy.