34" U-34, Miss Illinois, Hydro

The Pro Boat® Miss Illinois U-34 34" Brushless Hydro Boat RTR combines the looks and performance of the world's fastest Unlimited boats. This brushless-motor RTR boat is ready to go right out of the box and glide across the water at full power.

Pro Boat® Miss Illinois U-34 34" Brushless Hydro RC Boat

Experience the adrenaline rush of H1 Unlimited hydroplane racing with the Pro Boat® Miss Illinois U-34 34" Brushless Hydro Boat RTR. The world’s fastest race boats deliver up to 3,000 PS with their turbines, reaching speeds of nearly 320 km/h. Inspired by these high-performance boats, this precision-built model perfectly captures the aggressive stance, the characteristic “rooster tail” (water plume), and the raw speed of its full-size counterpart. Powered by the high-performance, water-cooled Spektrum Marine 4685 4-pole brushless motor and Spektrum™ 8S 160A Smart ESC, the U-34 Hydro launches from a standstill at full throttle and races across the water’s surface at over 110 km/h. This RTR model offers a ready-to-run platform with high-quality electronics, CNC-machined aluminum hardware, and enough power to turn heads on any lake. Genuine hydroplane platforms like this are usually custom-built and extremely expensive—but with this Ready-to-Run package, you can hit the water right away and enjoy the action!
At the heart of the U-34’s control system is the on-the-fly adjustable canard system, which is fully integrated into the included, specially programmed DX3 Smart remote control. With real-time aerodynamic adjustment, you can adapt it to changing water and wind conditions while on the move. A dedicated emergency button for maximum downforce ensures that the boat’s nose is immediately pushed downward at high speeds to prevent capsizing. Combined with a fully adjustable rear wing, an aluminum turn fin, and an adjustable CNC-machined aluminum propeller shaft mount, the U-34 offers a platform that will delight both speed enthusiasts and tuning enthusiasts alike.
Durability and ease of use are standard features here. The SSL (Strap, Slide, Lock) battery compartment system allows for effortless battery changes, while the fold-away aluminum rudder protects against damage from underwater obstacles. Stainless steel hardware ensures durable, rust-free performance, run after run. The clean interior features neatly routed cooling lines, a waterproof receiver box, and a grease catcher that prevents grease from being flung off the flex shaft—for easy maintenance and a clean interior appearance.
Whether you’re looking for a modern hydroplane model for your shelf, want to push the performance limits as a hobbyist, or want to experience the thrilling speed of a hydroplane as a beginner —the U-34 Hydro delivers speed, thrills, and realistic scale that’s every bit as impressive as its full-size 1:1 counterpart—all right out of the box!

Pro Boat U-34 Hydro Boat: 70+ MPH on 8S Brushless Power Video

Pro Boat® Miss Illinois U-34 34" Brushless Hydro RC Boat Features

• Powerful 8S Brushless Motor
• Adjustable canards on the fly with an emergency button for maximum downforce
• Convenient, quick, and easy battery compartment system that snaps into place with one hand


Dominant 8S Brushless Power
Experience the raw power of the Spektrum 8S 160A ESC and the oversized SPMXMM1000 brushless motor. This high-performance system delivers impressive acceleration from a standstill and breathtaking top speeds that can rival those of a real 1:1 model. Whether you’re tearing down long straights or accelerating powerfully out of a turn—this 34-inch powerhouse delivers performance that redefines modern RC hydroplanes.


On-the-Fly Adjustable Canard
Take control of your boat’s flight with the integrated, adjustable front canard—a high-performance wing system that allows for real-time fine-tuning. This advanced setup allows for precise trim adjustments while on the water via the specially programmed remote control, including a dedicated “Extra Lift” button to instantly break through surface tension. Constructed with a solid steel spar and a sturdy aluminum angle lever, the system responds directly and without flex, ensuring maximum precision at high speeds.


Pro Boat SSL Battery System
Pro Boat’s innovative Strap, Slide, Lock (SSL) battery system puts an end to the tedious task of securing batteries in tight hulls. The batteries are simply strapped onto specially shaped mounts, which can then be slid into place and securely locked. This lets you swap out the battery in just a few seconds, so you’re back on the water faster. This system ensures that the center of gravity remains constant on every ride, providing you with predictable and reliable handling at all times.


Integrated Rollover Prevention
High-speed hydroplanes are a constant battle between lift and drag, but the U-34 features a specially programmed emergency override for maximum safety. With the push of a single button, the canards are adjusted to their most aggressive downward angle to generate maximum downforce and keep the hull securely on the water. This safety feature prevents costly rollovers and blow-overs in turbulent conditions and gives you the confidence to push the performance limits to the max.


Precision-Injection-Molded Hull
True top performance requires sharp lines and a perfectly flat planing surface—that’s why the U-34 features a high-precision injection-molded hull. This design offers the durability and dimensional accuracy of a custom-built race boat right out of the box, with no manual sanding or finishing required. The result is a rock-solid platform that stays on course and effortlessly withstands the enormous torque of an 8S system.


Real-Time Smart Telemetry Features
Stay fully informed throughout your run thanks to Spektrum Smart technology, which transmits key battery data directly to the included DX3 transmitter. For those who want even more detailed insights: By pairing the U-34 with a programmable Spektrum transmitter, you’ll gain access to advanced data such as current consumption, motor RPM, battery and ESC temperatures, and precise voltage readings. This real-time feedback allows you to monitor the condition of your electronics and precisely control your vehicle’s runtime.


CNC-Machined and Stainless Steel Components
The U-34 is designed for durability and precise tuning and features a complete set of CNC-machined aluminum and stainless steel components. These robust components allow you to optimally adjust the propulsion system and the angles of the tail fin to changing water conditions. From the aluminum two-blade propeller and the adjustable propeller mount to the fold-down aluminum rudder and the pre-assembled, adjustable turn fin—every detail of the propulsion components has been engineered so you can spend more time on the water and less time in the workshop.


Ready-to-Run
Everything comes fully pre-assembled, so you can hit the water just minutes after unpacking. This saves time and effort during assembly and ensures reliable performance right from the start.


Adjustable Tail Fin
Optimize aerodynamic balance with the fully adjustable tail fin. Increase downforce for more stability, or reduce drag to lift the tail and maximize speed.


Adjustable Turnfin
Fine-tune your handling with the pre-sharpened aluminum turn fin. By adjusting the depth and angle, you can counteract the propeller torque that naturally pulls the boat to the right—for a more neutral feel when driving straight. For dedicated oval racing, the optional Hooked Turn Fin can be installed to maximize lateral force and prevent the sponson from hopping during fast right-hand turns.


Waterproof Receiver Box
A sealed enclosure protects the receiver from water ingress, preventing signal loss, corrosion, or electrical damage during operation. The box is securely fastened to the chassis with stainless steel screws and features an integrated rubber gasket for a watertight cable exit. This bolted design ensures a reliable seal and keeps your sensitive electronics completely dry inside the chassis, even during rollovers or if water enters the chassis.


Dual Independent Water Cooling System
Separate cooling lines for the motor and the ESC prevent overheating and maintain optimal temperatures even during extended high-speed runs. The integrated, dual-path water inlets are built directly into the rudder, ensuring a clean design and minimizing drag caused by external inlets. This well-thought-out design ensures maximum water flow for cooling without compromising the boat’s top speed or handling.


Cooling Line Routing
Integrated channels ensure that the cooling lines are routed neatly and securely, resulting in a tidy and efficient internal layout. They prevent kinks or loose hoses that could interfere with moving parts, thereby ensuring a consistent water flow and reliable cooling performance. The optimized routing also makes it easier to inspect connections and perform maintenance between trips.


Grease Trap for Stuffing Box
The grease trap on the stuffing box prevents excess grease from the flexible shaft from spreading throughout the hull’s interior. By capturing the inevitable spray caused by high-speed rotation, this trap keeps electronics and cooling lines free of oily deposits. A cleaner bilge also makes it much easier to wipe down the boat after a day on the lake and perform routine maintenance.


Custom Hand-Painted Finish
The hand-painted details give the boat a realistic and high-quality look—making it appear like a genuine Scale Performance machine rather than a simple injection-molded shell.

Specifications

• Top Speed: 70+
• Beam: 19.2" (488 mm)
• Hull Height: 7.4 inches (189 mm)
• Product Weight: 8.14 lbs. (3.7 kg)
• Receiver: Included
• Propeller Size: 4817
• Decal Colors: Blue / Yellow
• ESC: Included
• Hull Material: Injection-Molded Composite
• Remote Control: Included
• Assembly Level: Ready-To-Run
• Product Length: 34" (864 mm)
• Battery: Sold separately
• Estimated Assembly Time: No assembly required
• Vehicle Size: Standard
• Charger: Sold separately
• Motor Size: 4685 4-Pole
• Hull Type: Hydroplane
• Motor Type: Brushless
• Drive System: Flex Shaft

Content

• 1x Miss Illinois U-34 34" Brushless Hydro Boat RTR (fully assembled)
• 1x Spektrum DX3 Smart 3-Channel DSMR Remote Control
• 1x Wooden stand for the boat

Required for assembly

• 2x 4S 100C LiPo batteries with IC5 connectors
• 1x Compatible LiPo charger