Splashdrone 4+

Price range: £2,498.00 through £7,171.00

Fully waterproof fishing and rescue drone
IP67-rated floating airframe design
Ideal for marine and wet-weather flying
Supports bait dropping and payload delivery
Built for reliable coastal operations

Camera

Extra Battery

Dual Payload Release

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Category: Waterproof Drones

SplashDrone 4+ — The Ultimate Waterproof Drone Platform

The SplashDrone 4+ is a 5th-generation, heavy-duty autonomous drone system engineered explicitly for harsh maritime missions, search & rescue, and marine research. With an IP67 waterproof rating, anti-corrosion architecture, and 10 switchable tactical payload options, it delivers reliable remote operations over open ocean waters where standard aircraft cannot survive.

SplashDrone 4+ Autonomous Maritime Drone

IP67 Waterproof & Anti-Corrosion
28-Minute Flight Time
2KG Payload Capacity
7-Level Wind Resistance
Thermal & 30x Zoom Options
45 Second Setup
Powerflip™ Self-Righting
Auto Calibrate

Core Features for Enterprise & Marine Use

SeaShield™ Marine Protection

IP67 military-grade waterproof housing with fully isolated, anti-corrosion coated internal circuits and high-torque motors.

PowerFlip™ Automatic Self-Righting

If the aircraft is rolled upside down by large breaking sea swells, it can be triggered remotely to flip itself upright for an immediate water takeoff.

Level 7 Wind Resistance Threshold

An advanced aerodynamic framework handles sustained offshore gale winds up to 61.9 km/h with completely stable positioning.

Optimized Flight & Power Endurance

Enjoy 28 minutes of unladen flight time, or integrate the tactical 50m tethered line configuration to feed constant 24/7 ground station power.

Operational Deployment Scenarios

Water Launch, Recovery & Safety

Take off and land directly on rolling ocean waves or moving boat decks. Built-in air pressure regulation valves manage structural equilibrium during heavy submersions.

Smart Flight & Autonomous Mapping

Deploy in just 45 seconds to map custom search sectors, log automated waypoint flight profiles, and stream high-definition real-time geographic data overlays.

Switchable Payload Modules & Options

Megaphone System

Broadcast commands, issue safety alerts, and deliver voice reassurance to stranded individuals directly from the air.

Water Sampling Collector

Remotely extract surface water samples from pinpoint coordinates, mitigating field risks for environment teams.

Dual Payload Release Hook

Safely transport up to 2KG total cargo capacity with dual mechanical hooks allowing independent precision drops.

Thermal & Visible Dual Light

Dual-sensor architecture combining a sharp 640×512 thermal core for advanced nighttime tracking and signature mapping.

Precision Targeting Optical Unit

Provides a powerful 30x hybrid optical zoom sensor coupled with an integrated 1200m laser range finder module.

Underwater Gimbal Extension

Features a rugged 40cm structural drop extension pole designed to submerge camera arrays for clear underwater scanning.

Sonar Depth Detection Sensor

Integrates a continuous 40m subsurface tracking transducer array to aid maritime search, mapping, and recovery.

Tethered Power Supply Kit

Continuous 24-hour runtime over a 50M umbilical cord. Supports simultaneously mounting top and bottom payloads.

R03 Remote Controller: Built for Severe Ground Operations

Android-Powered Touchscreen

Crisp 5.5-inch responsive touchscreen interface
Fully integrated native Android core processing
Specialized wet-hand tracking matrix algorithms
High-output internal speaker and operational microphone

High-Contrast Display Panel

Ultra-bright 700-Nit backlit outdoor instrumentation screen
Complete layout legibility under glaring direct sunlight

SwellPro R03 IP67 Floating Smart Remote Station

Advanced Bluetooth 5.2 Link

Bespoke direct interface loops for communications headsets
Immersive noise isolation for deep mission concentrations
Synchronized voice relay linked directly to airborne Megaphone payloads

Rugged Marine Architecture

IP67 complete atmospheric and fluid particulate sealing
Inherent buoyancy safety design — floats if dropped overboard

Technical Specifications

Click to view Comprehensive Technical Datasheet

🛩️ Aircraft Platform Metrics
Waterproof Rating	IP67 Floating Design Core
Gross Frame Weight	2430g (with flight battery and propellers attached)
Axis Wheelbase Diameter	450 mm layout
Physical Sizing Dimensions	372.2 × 372.2 × 230.6 mm
Max Ascent Rate Velocity	3 m/s
Max Descent Rate Velocity	2 m/s
Max Horizontal Velocity	18 m/s (Sport), 10 m/s (Normal), 3 m/s (Cine Mode)
Max Allowed Tilt Angle	30° Envelope
Max Altitude Limit	120 m from original take-off location point
Max Sustained Wind Limit	61.9 km/h \| 17 m/s \| 33.4 knots (Level 7 Sea Gales)
Max Flight Duration Limit	Up to 28 mins (zero payload under zero crosswinds)
Hovering Precision Window	Vertical: ±0.5 m \| Horizontal: ±0.5 m
Max Line of Sight Distance	7.0 km tracking radius
Max Payload Structural Load	2000 g maximum gross lift capacity
Max Take-off Mass Limit	4180 g gross threshold
Brushless Propulsion Motors	#3510 – 740Kv configuration treated with special anti-corrosion layer
ESC Motor Governors	20A Drive Array
Propeller System Layout	#1242 Carbon Fibre structural quick release locking configurations
Radio Frequency Spectrums	5180–5875 MHz; 5745–5825 MHz (Regionally restricted by authority guidelines)
EIRP Signal Transmitter Power	5.1 GHz: <23 dBm (CE) 5.8 GHz: <33 dBm (FCC); <30 dBm (SRRC); <14 dBm (CE)
Working Temperatures	-10°C to 60°C operational limit
GNSS Satellite Constellations	GPS + Galileo + BeiDou tracking frameworks
UART SDK Protocol Links	TTL serial protocol connection converted to TCP, 115200 default baud rate

🎮 Ground Station Controller (R03) Metrics
Waterproof Sealing Rating	IP67 Standard with Buoyant Shell Architecture
Radio Link Frequencies	5180–5875 MHz; 5745–5825 MHz
EIRP Radiation Metrics	5.1 GHz: <23 dBm (CE) 5.8 GHz: <33 dBm (FCC); <30 dBm (SRRC); <14 dBm (CE)
Live Feed Transmission	720P @ 30fps high speed datalink streams
Internal Controller Battery	2S 3000mAh structural safe battery cell pack
Continuous Working Life	150 mins operational threshold
Operational Core Voltages	7.4V
HDMI Port Architecture	Full 1080P digital high definition external screen connection
Type-C Command Port	Firmware diagnostics, flight telemetry capture, and rapid charging
Integrated Panel Screen	5.5 inch display panel, crisp 1920×1080 resolution, 700-Nits brightness
Operating Base System	Custom Built Android OS Framework
Working Environments	-10°C to 40°C range
Total Charging Cycle Time	150 mins standard duration
Power Delivery Feed Input	5V / 3A Type-C charging source

🔋 Intelligent Flight Battery Pack (IB4+) Specs
Nominal System Voltages	25.2V
Total Energy Densities	4500mAh
Battery Chemistry Form	Intelligent 6S Solid-State Lithium Format
Total Watt Hours Capacity	99.9Wh (Completely Air Travel Compliant)
Physical Shell Dimensions	154.8 × 80 × 49.5 mm
Net Weight Metrics	820g
Working Core Envelopes	Discharging: -10°C to 60°C \| Charging: 0°C to 45°C
Safe Storage Ambient Limits	0°C to 25°C
Charge Timeline Metrics	120 mins duration
Max Allowed Charge Rates	8A flow rates

⚡ Utility Ground Charger Metrics
Alternating Current Input	220V, 50/60Hz grid connections
Direct Current Output	25.2V @ 5.9A profiles
Total Rated Load Wattages	150W high efficiency conversions

📱 App Ecosystem Specifications
Mobile App Core Interface	SDFly3 System link environment
Live Screen Feed Performance	720P @ 30fps high definition digital streams

Why Buy from Drone Sales UK?

Authorised UK SwellPro Enterprise & Marine Operations Distributor
Comprehensive UK hardware configuration & marine aviation regulatory support
Fast, fully insured UK distribution and dispatch
Full after-sales engineering service, payload adaptation training & localized technical assistance
Price match guarantee for registered commercial and enterprise clients

Is the SplashDrone 4+ completely waterproof?›

Yes. Both the SplashDrone 4+ aircraft and its standard remote controller are rated IP67 waterproof. This means they can be fully submerged in water up to 1 metre deep for up to 30 minutes without leaking. The drone is also designed with built-in buoyancy so it floats naturally on the water surface.

What should I do after flying the drone in saltwater?›

Crucial Maintenance: Always thoroughly rinse the entire drone, motors, and camera gimbal with fresh, clean water immediately after every saltwater flight. Do this before the salt mist dries. Spin the motors by hand while rinsing to flush out any trapped salt crystals or sand grains.

What happens if a wave flips the drone upside down in the water?›

The SplashDrone 4+ features an automated PowerFlip (Self-Righting) function. If the aircraft gets inverted by rough surf or a wave while floating, you can execute a specific joystick command on your remote controller to instantly flip the drone back upright, allowing you to take off directly from the water again.

How much bait or cargo can the payload release carry?›

The drone has a maximum safe payload capacity of 2.0 kg (4.4 lbs). This makes it highly effective for carrying heavy multi-hook fishing rigs, large baits, or dropping emergency safety equipment like inflatable life vests during marine search and rescue ops.

What is the real-world flight time when carrying a payload?›

While the standard 6S intelligent battery provides up to 28–30 minutes of flight time completely empty with no wind, carrying heavy payloads significantly increases motor power draw. When casting heavy baits or towing lines, expect a real-world flight window of roughly 15 to 20 minutes.

What happens to the video transmission range when the drone is on the water?›

The transmission range is up to 7 km (4.3 miles) when flying at normal altitudes. However, when the drone is floating directly on the water surface, the signal transmission drops to around 500 metres due to water surface interference. If you are flying just 0.5 metres above the water, your range will sit at around 2.8 km.

Does the SplashDrone 4+ require compass calibration before every flight?›

No. Thanks to upgraded internal sensors, the 4+ model features a 45-second quick-start setup that safely eliminates the need for tedious, repetitive pre-flight compass calibrations in the field—unless you have travelled a significant geographic distance from your last flight location.

Can I use a camera gimbal and a payload release at the same time?›

SwellPro offers specialised combination modules (such as the PL1-S or PL2-S line) that build a mechanical payload release directly onto a low-light or 4K camera housing. This allows you to scout for fish or targets visually while maintaining the ability to drop payloads on demand.

SwellPro SplashDrone 4+ Aircraft · Smart Touchscreen Controller (5.5-inch) · IB4+ Intelligent 6S Battery (99.9 Wh) · #1242 Carbon Fiber Quick-Release Propellers · Marine-Grade ABS Fuselage · SeaShield™ Anti-Corrosion Coating · PowerFlip™ Self-Righting Tech · 2 kg Payload Drop Mechanism · 150W Balance Charger

SwellPro SplashDrone 4+ (SD4+) — Technical Specifications

The ultimate evolution of the world’s premier all-weather, floating flight platform. The SplashDrone 4+ introducing a lightning-fast 45-second calibration-free setup, an upgraded 7 km digital transmission link, and a built-in 5.5-inch Android smart touchscreen controller, providing unparalleled tactical maritime and industrial performance.

IP67 Marine-Grade Waterproofing
PowerFlip Self-Righting System
2.0 kg Heavy-Lift Payload Capacity
45-Second Quick-Start (No Calibration)
7.0 km Long-Range Digital Link
Integrated 5.5″ Smart Controller

Aircraft & Hull Performance

Ingress Protection: IP67 dust and waterproof rated; built with SeaShield™ anti-corrosion materials for full saltwater survivability.
Physical Footprint: 372.2 × 372.2 × 230.6 mm dimensions with a 450 mm diagonal axis wheelbase.
Weight Metrics: 2,430 g empty weight (including battery and propellers) | 4,180 g Maximum Takeoff Weight (MTOW).
Propulsion Setup: Custom #3510 specialized coated 740Kv water-resistant motors coupled with 20A ESCs and #1242 carbon fiber quick-release propellers.
Velocity Parameters: Max flight speed of 18 m/s (Sport), 10 m/s (Normal), and 3 m/s (Cine Mode). Max ascent speed is 3 m/s; max descent speed is 2 m/s.
Environmental Limits: Operating thermal threshold of -10 °C to 60 °C; structural wind resistance up to 61.9 km/h (17 m/s / Level 7 / Sea State 5).
Avionics & GNSS: Tri-band satellite pairing (GPS + Galileo + BeiDou) with a 45-second rapid start requiring no pre-flight compass calibration.

Power & Intelligent Management System

IB4+ Intelligent Battery: High-voltage 6S lithium configuration operating at 25.2 V with a 4,500 mAh capacity (99.9 Wh). Net battery weight is 820 g.
Flight Endurance: Up to 28 minutes maximum airtime (measured at sea level, zero wind, with zero auxiliary payload).
Smart Charging Array: 150W balance charger (25.2V @ 5.9A output) with an approximate 120-minute depletion-to-full charge cycle.
Tethered Power Option: Seamless integration with SwellPro’s 50-meter land/boat tether kit for indefinite 24/7 continuous industrial monitoring.

All-Weather Smart Touchscreen Controller

Integrated Display: Built-in 5.5-inch Android-driven full HD touchscreen (1920×1080 resolution) pumping out a bright 700 nits of outdoor visibility. Supports wet-hand touch inputs.
Transmission Range: Next-generation high-stability digital link pushing 720p/30fps live video up to 7.0 km (FCC range) or 4.0–5.0 km (CE/SRRC).
Physical Ruggedness: Fully weatherized IP67 enclosure operating safely within -10 °C to 40 °C ambient thermal limits.
Connectivity & Interfaces: Native 1080p HDMI hardware video output port; Bluetooth 5.2 for wireless monitoring headsets; Type-C port for telemetry datalogs, charging, and upgrades.
Internal Power: 2S 3,000 mAh rechargeable battery pushing up to 150 minutes of active operation on a single 2.5-hour charge.

Modular Payload Ecosystem & Software Interface

Heavy-Lift Utility: Up to 2,000 g (2.4 lbs) of external payload capacity. Supports precision mechanical line dropping, dual-stage bait releases, and cargo distribution.
Stabilized Camera Support: Native mechanical matching with SwellPro’s waterproof 3-axis 4K gimbal (48MP, f/2.2, 1/2″ CMOS) supporting high-bitrate 4K/60fps capture, as well as optional Low-Light (GC2-S), Zoom, and dual-sensor Thermal/Visual arrays.
Specialized Marine Tooling: Plug-and-play interfaces for external marine megaphones, specialized automated water-sampling collectors, and real-time underwater sonar scanners.
Software Control: Managed completely via the SDFly3 mobile software interface supporting advanced grid-mapping, multi-waypoint routes, dynamic orbit paths, “Return to Boat” logic, and automated tracking.

* Maximum flight time numbers reflect baseline testing under completely sterile, unladen environments. Real-world battery life will diminish based on maritime wind loading, attached payload drag, and specific camera gimbal selections (averages 20-25 mins with typical 3-axis camera sets). PowerFlip self-righting algorithms are designed specifically for water capsizes and should only be initiated once the drone has safely reached a floating zero-propeller status.