1S Tiny Whoop
The build the site's own first-30-days plan recommends buying, not building: "a first BNF whoop and your first real packs — indoors, low, with zero ambition." This page is a buyer's/checker's guide first, with a DIY note for anyone who wants to assemble one anyway for the learning experience.
What makes a whoop different
The other two builds on this site — the 5″ freestyle and the 7″ long-range — bolt together separate parts: a frame, a flight controller, an ESC, a receiver. A whoop collapses almost all of that electronics stack into a single small AIO ("all-in-one") board — flight controller, 4-in-1 ESC, and usually the VTX and receiver too, all on one board sized to fit inside a frame small enough to fly around a living room. That integration is the whole point: less weight, less wiring, a fully ducted frame (props enclosed in guards) that survives hitting walls, furniture and fingers.
Part list (what's inside, even if you never touch a soldering iron)
| Part | Choice (example) | Notes |
|---|---|---|
| Frame | 65–75 mm brushless whoop frame, ducted | Ducts are the reason a whoop survives indoor crashes — see Frame |
| AIO board (FC + ESC + VTX) | Sub-5 g board rated for 1S | Replaces the separate FC and ESC of bigger builds — see Flight Controller and ESC |
| Motors | 4× 0802, ~20,000 KV, 1S | High KV on a single cell is the whoop-specific KV/prop pairing — see Brushless Motors |
| Props | 31 mm tri-blade | Sized to the frame's ducts — see Propellers |
| Battery | 1S LiHV, 300–450 mAh | Same sag/internal-resistance physics as bigger packs, just one cell — see Battery |
| Receiver | Often built into the AIO board | A separate nano ELRS RX exists for boards without one — see Radio Receiver |
| Camera | Analog (cheapest, lowest latency) or a digital nano air unit | See FPV Camera |
Target feel
Using the thrust-to-weight table from Module 2: a tiny whoop sits at TWR ≈ 3–5 — floaty and forgiving, nothing like a freestyle 5″'s 8–12. That's deliberate: a twitchy, high-TWR machine in a small room is a bad first flight. Typical flight time is a few minutes per tiny 1S pack, which is why whoop pilots carry a stack of small batteries rather than one big one — swap and go, rather than wait for a charge.
Buying vs. building
BNF (recommended, and what the first-30-days plan tells you to do): most pilots buy a whoop fully assembled. Check these even on a pre-built unit before your first flight:
- Props are tight on their shafts and undamaged — a cracked prop this small is still a cracked prop.
- Duct guards are intact on all four corners.
- Bind it to your own radio and confirm stick response before arming indoors.
- Configure failsafe as a motor cut, not a return-to-home — there's no GPS, and "flying home" indoors just means flying into something. See GPS Module for why RTL logic doesn't apply here the way it does on the long-range build.
DIY (optional, for the experience): solder the four motors to the AIO board's pads, double-check rotation directions with the props off, and do the same current-limited first power-up the bigger builds use, just at 1S scale. Binding and failsafe configuration are identical to the BNF checklist above.
Ducts reduce injury risk, they don't eliminate it. Keep fingers clear of the front of the frame while armed, and treat "it's just a whoop" as exactly the kind of thinking that leads to a nicked finger — see the six rules on the homepage; they apply here too.