Overview
The DarwinFPV HULK III Mini Waterproof FPV Drone RTF is a ready-to-fly (RTF) FPV drone designed for amphibious flying, including takeoff/landing on water, with an IP67 waterproof rating. Two RTF versions are offered: HULK III Mini Waterproof Analog RTF and HULK III Mini Waterproof O4 Pro RTF.
Key Features
- IP67 waterproof rating for amphibious use.
- O4 Pro FPV transmission system (O4 Pro version) with 1/1.3" image sensor and 4K/120fps recording support; electronic image stabilization.
- FPV transmission image quality: 1080p/100fps (O4 Pro).
- Maximum VTX distance: 13 kilometers (O4 Pro feature card); RTF specification table also lists up to 15KM (no-interference environment).
- Maximum transmission bitrate: 60Mbps (O4 Pro feature card).
- Power system: Seawater series seawater-proof motors + 6S high-voltage battery; max thrust 4.4KG; level-7 wind resistance; top speed 120 km/h.
- 4-layer armor protection: waterproof electrical components, CNC aluminum alloy protective shell, carbon fiber + roll cage design, and injection-molded protective ring.
- GPS safety/Rescue mode: standard GPS; automatic rescue on RC link loss; manual rescue available on video loss (GPS rescue disabled by default; check manuals before use).
- Flexible battery mounting: two installation methods (top & bottom) to adapt to water flight vs regular flight configurations.
- TX8 ELRS radio: built-in ELRS 2.4G 100mW RF module; control range over 2KM; supports popular simulators.
- Goggles options by version: Analog version includes EV800DM 5.8G 3-inch goggles (dual antennas, 10ms low latency); HD version includes DJI N3 goggles.
Specifications
RTF Specifications (from product table)
| Item | HULK III Mini Waterproof Analog RTF | HULK III Mini Waterproof O4 Pro RTF |
|---|---|---|
| Drone | HULK III Mini Waterproof Analog | HULK III Mini Waterproof O4 Pro |
| Video | NON | 4K/120fps |
| Camera | "Cement" Ultra Durable Waterproof Camera | Waterproof O4 Air Unit Pro |
| VTX | Cement 5.8G 1000mW Waterproof VTX | Waterproof O4 Air Unit Pro |
| Farthest Flight Distance (No Interference environment) | 3KM | 15KM |
| Max Horizontal Flight Speed | 120km/h | |
| FC | F4 Cement Waterproof FC | |
| ESC | Cement Waterproof 60A ESC | |
| Receiver | DarwinFPV Cement Waterproof ELRS 2.4G | |
| GPS | DarwinFPV-M1018 GPS | |
| Motor | Seawater 2006.5 Seawater-proof Motor | |
| Propeller | GEMFAN D90S-3 | |
| Frame Type | Ture-X | |
| Wheelbase | 151.5mm | |
| Arm Thickness | 3.5mm | |
| Battery Life | 6-10 mins |
TX8 ELRS Transmitter (from product table)
| Frequency Range | 2.4GHz ISM |
| Transmit Module | ExpressLRS (ELRS SX1280) |
| Distance | ≥2KM |
| Joystick | High precision low temperature drift potentiometer joystick |
| Channel | 8 channels (4 joysticks + 4 switches) |
| Antenna Interface | SMA |
| Operate Voltage | 3.5-4.2V DC |
| Charging | USB TYPE-C - 5V/1.2A |
| Battery Life | 6h |
| Battery | 18650-2600mAh |
| Transmitter Firmware Upgrade Method | Support USB online upgrade |
| TX Module Firmware Upgrade Method | Support WIFI wireless upgrade |
| ELRS Firmware Version | Generic ESP8285 Full-duplex 2.4GHz Rx as TX 3.5.3_UART |
FPV Goggles (from product table)
| Item | Mini 3 Inches 5.8GHz 40CH FPV Goggles | (HD version column) |
|---|---|---|
| Screen size | 3 Inch | 3.5Inch |
| Screen resolution | 480x320 | 1920 x 1080 |
| Aspect Ratio | 16:9 | 16:9 or 4:3 |
| View Angle | 6 o'clock | 54° |
| Operating hours | 2.5 hours | 2.7 Hours |
| Video format | NTSC/PAL (Adjustable) | MOV |
iSDT 608PD SMART CHARGER (from product table)
| Input voltage | DC 5-30 V, USB-C 5-28V |
| Max input current | DC 10A, USB-C 5A |
| Max charge power | 240W/10A |
| Charging current | 0.5-10.0A |
| Output voltage range | DC 3.0-30V |
| Max discharge current | USB-C 100W/5A |
| Balancing current / Cell Max | 0.8A/Cell Max |
| Battery type | LiFe, LiPo, LiHv (4.35--4.50V) 1-6S |
| Operating temperature | 0°C - 40°C |
| Charger size | 72.5x60x26.6mm |
| Charger weight | 85g (soil 10%) |
DarwinFPV 6S 1300mAh Waterproof LiPo Battery (from product table)
| Battery Type | LiPo |
| Capacity | 1300mAh |
| Voltage | 22.2V |
| Assemble | 6S1P |
| Net Weight | 221.1g |
| Discharge Rate | 110C |
| Charge Rate | 1C to 5C |
| Charge Connector | XT60 |
What's Included
HULK III Mini Analog RTF
- HULK III Mini Analog + 2.4G
- 3 Inch FPV Geggles
- ISDT 608PD Battery Balance Charger
- TX8 ELRS Transmitter
- 2x 6S 1300mAh 22.2V 110C
- Instruction Card
- 120*120mm Logo Sticker
HULK III Mini O4 Pro RTF
- HULK III Mini O4 Pro + 2.4G
- DJI N3 Goggles
- ISDT 608PD Battery Balance Charger
- TX8 ELRS Transmitter
- 2x 6S 1300mAh 22.2V 110C
- Instruction Card
- 120*120mm Logo Sticker
Applications
- Amphibious FPV flying and water takeoff/landing
- FPV practice and simulator training with ELRS TX8
- High-frame-rate FPV recording (O4 Pro version: 4K/120fps)
For product selection help (Analog vs O4 Pro) or after-sales support, contact https://rcdrone.top/ or support@rcdrone.top.
Details

The HULK III Mini HD RTF kit includes FPV goggles, a controller, two 6-cell batteries, and a compact charger for a ready-to-fly setup.

The DarwinFPV HULK III Mini analog RTF set includes the quadcopter, FPV goggles, a gamepad-style transmitter, two LiPo batteries, and a compact charger for quick setup.

DarwinFPV HULK III Mini is presented as an amphibious FPV drone with IP67 waterproof rating and 4K/120fps recording support.

An IP67 waterproof rating supports use around water, including water-based takeoffs and landings and underwater shooting.

The HULK III Mini setup lists 1080p/100fps and 4K/120fps capture, along with up to 13 km VTX distance and 60 Mbps bitrate.


DarwinFPV’s 4-layer armor setup combines waterproof electronics, a CNC aluminum protective shell, a carbon-fiber roll cage, and an injection-molded protective ring for added all-round durability.

The DarwinFPV multi-purpose drone concept supports switching between different drone configurations using a camera-style unit.

DarwinFPV GPS rescue mode can help the drone return automatically if the video signal is lost, with a manual switch option via the remote.

DarwinFPV supports two battery installation methods—top or bottom mounting—to suit different flight and mounting setups.

The ELRS TX8 remote controller has a built-in ELRS 2.4G 100mW RF module and supports a variety of popular flight simulators.

Choose between the EV800DM 5.8G 3-inch analog goggles or the DJI N3 HD goggles to match your flying setup and viewing preference.

The HULK II Mini Waterproof 04 Pro RTF setup combines 4K/120fps video, a 2.4GHz ELRS receiver, and 6S battery support.

The HULK III Mini Analog RTF packing list includes the quadcopter, 3-inch FPV goggles, TX8 ELRS transmitter, iSDT 608PD balance charger, two 6S 1300mAh batteries, an instruction card, and a logo sticker.

Details

The HULK III Mini HD Version RTF bundle includes FPV goggles, a controller, a compact ducted drone, and two 6S batteries for a ready-to-fly setup.

The HULK III Mini analog RTF set includes the quad, FPV goggles, a radio controller, two LiPo batteries, and a compact charger for quick setup.

The DarwinFPV HULK III Mini features an IP67 waterproof rating with 4K/120fps recording, 4-layer protection, and a powerful battery.

The IP67 waterproof rating supports use around water and short underwater shooting for action sports.

The DarwinFPV FPV setup lists 1080p/100fps and 4K/120fps recording support, up to 13 km VTX distance, and a 60 Mbps maximum transmission bitrate.

This DarwinFPV drone is described with a 6S high-voltage battery setup, max thrust of 4.4 kg, level-7 wind resistance, and a top speed of 120 km/h.

DarwinFPV’s 4-layer armor design combines waterproof electrical components with a CNC aluminum shell, carbon fiber roll cage, and protective ring.

DarwinFPV’s O4 Pro FPV VTX is presented as a multi-purpose setup that can be switched between different drone configurations.

DarwinFPV Safety Escort adds a GPS rescue mode that can help the drone return automatically if the remote signal is lost.

DarwinFPV’s ducted cinewhoop design supports both top- and bottom-mounted battery setups to adapt to different flight needs.

The ELRS TX8 remote controller has a built-in 2.4G 100mW RF module and states a control range of over 2 km, with support for popular flight simulators.

Choose between the analog EV800DM 5.8G 3-inch dual-antenna goggles and an HD option compatible with DJI N3 goggles for clear flight vision.

RTF specifications compare the Hulk II Mini Waterproof Analog and 04 Pro versions, including battery, weight, and video options.

The HULK III Mini Analog RTF packing list includes the drone, 3-inch FPV goggles, TX8 ELRS transmitter, ISDT 608PD balance charger, 6S 1300mAh batteries, and instruction card.

The HULK III Mini 04 Pro RTF package includes the quadcopter, DJI N3 goggles, TX8 ELRS transmitter, ISDT 608PD balance charger, two 6S 1300mAh batteries, an instruction card, and a logo sticker.
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