# Drones

A collection of FPV drone builds ranging from tiny 85mm whoops to 5 inch
freestyle rigs. All flying on ExpressLRS 2.4GHz with a RadioMaster Boxer.

## Radio

- **Transmitter:** RadioMaster Boxer / ELRS 2.4GHz

## 85 mm — `85mm-hdzero/`

- **Name:**
- **Frame:**
- **Prop size:** 85 mm / tri-blade
- **FC:** Happymodel
- **ESC:**
- **Receiver:**
- **ELRS firmware:** 4.0.0
- **VTX:** HDZero
- **Motor:**
- **Weight:**

## 3 inch — `3inch-walksnail/`

- **Name:** Lion
- **Frame:** JMT 115mm (Happymodel Crux3 compatible)
- **Prop size:** 3 inch / bi-blade / Gemfan Hurricane 3018 (3x1.8)
- **FC:** Flywoo F405S AIO (STM32F405 / ICM42688P) — BF: FLYWOOF405S_AIO, INAV: FLYWOOF405HD
- **ESC:** Flywoo 4-in-1 12A BLHeli_S (Z_H_30_REV16.7) / 1-2S
- **Receiver:** ELRS Mini 2.4GHz (SX1280) Nano
- **ELRS firmware:** 4.0.0
- **VTX:** Walksnail Lite 1S
- **Motor:** HGLRC Specter 1202.5 / 11000KV / 1-2S
- **Weight:** ~74g (with battery)

## 3.5 inch — `3.5inch-hdzero/`

- **Name:** SAM
- **Frame:** Volador VX3.5 O3 Freestyle
- **Prop size:** 3.5 inch
- **FC:** Taker G4 45A 8Bit AIO (STM32G473 / ICM42688P) — BF: TAKERG4AIO
- **ESC:** Taker G4 4-in-1 45A (QF32MT / F4A AIO) / 2-6S
- **Receiver:** Happymodel EP1/EP2 2.4GHz (ISM2G4)
- **ELRS firmware:** 4.0.0
- **VTX:** HDZero Race
- **Motor:** FlyFishRC Flash 1804 / 3500KV / 4S
- **Weight:**

## 5 inch — `5inch-walksnail-moonlight/`

- **Name:**
- **Frame:**
- **Prop size:** 5 inch
- **FC:**
- **ESC:**
- **Receiver:**
- **ELRS firmware:** 4.0.0
- **VTX:** Walksnail Moonlight 4K
- **Motor:**
- **Weight:**

## 5 inch — `5inch-hdzero/`

- **Name:**
- **Frame:**
- **Prop size:** 5 inch
- **FC:** Flywoo Goku F722 Pro V2 (STM32F722 / ICM42688) — BF: FLYWOO F722PRO, INAV: FLYWOO F722PRO
- **ESC:** Flywoo Goku G55M 4-in-1 55A AM32 (AT32DEVF421) / 3-6S
- **Receiver:**
- **ELRS firmware:** 4.0.0
- **VTX:** HDZero
- **Motor:**
- **Weight:**