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Image for UL-1 Superior FE Hydro RTR Yellow from HorizonHobby
UL-1 Superior FE Hydro RTR Yellow
  • Overview
  • Specs
  • Reviews
  • Parts & Accessories
  • Manuals & Support


The UL-1 is the racing RTR with all the extras — and no equals! The hull and hardware are GrimRacer designs. The radio is a cutting-edge TTX300 2.4GHz system. The 2030KV brushless marine motor and 60A ESC are water-cooled, waterproof and AquaCraft originals. And the UL-1 is not only legal for NAMBA and IMPBA competition, it’s perfect for LiPo battery power!

Key Features

  • Hull: Lightweight painted fiberglass with molded-in center tub section that houses the motor, batteries and radio equipment, breakaway fins detach under stress to prevent damage to the hull, attach with two-sided tape and float for easy retrieval
  • Motor: AquaCraft 6-pole 36-56-2030kV brushless marine motor created exclusively for the UL-1 and high-speed hauling, 4mm motor plugs boost efficiency
  • Radio: Tactic TTX-300 2.4GHz SLT system, 3-ch pistol grip transmitter with steering and throttle, and steering trim adjustment, Tactic TSX20 standard servo for rudder control, Tactic TR325 3-channel receiver
  • Electronic Speed Control: Water cooled, waterproof, 60A for LiPo usage, a "Stutter Bump" warning at 12V and an auto cut-off at 11.6V insure low voltage protection, ESC is also NiCd and NiMH compatible
  • Strut: Black anodized CNC-machined aluminum, adjustable to change prop depth and angle to match water conditions
  • Turn Fin: 0.08" (2mm) thick aluminum with tapered leading edge to reduce drag, adjustable for top performance
  • Cowl: ABS plastic with magnetic locking system
  • Propeller: 3-blade 40mm FRP
Needed to Complete
  • AA Batteries: Four for transmitter
  • LiPo Batteries: Two 3200mAh 7.4V LiPo batteries AQUB9825
  • Battery Charger: LiPo Compatible
  • Cell Balancer
What's in the box?
  • (1) AquaCraft UL-1 Hydroplane, brushless marine motor and ESC, 2.4GHz 3-ch SLT radio system, decal sheet, instruction manual and plywood stand


    UL-1 Superior;

  • Hull Length: 27" (685mm)
  • Overall Length: 29-1/4" (744mm)
  • Beam (Width): 14-1/4" (361mm)
  • Overall Height: 6-3/4" (170mm)
  • Weight (Less Batteries): 4lbs, 1oz (1.84kg)
  • Weight RTR (with two 3200 LiPos): 4.9lbs (2.21kg)
  • Brushless Motor;

  • Diameter: 1.4" (36mm) kV Rating: 2030RPM/V
  • Length: 2.2" (56mm) Input Voltage: 7-18.5V
  • Shaft Length: 0.59" (15mm) Max Constant Current: 50A
  • Shaft Diameter: 0.20" (5mm) Max Surge Current: 80A/five seconds
  • Overall Length: 2.8" (71mm) No Load Current: 5.0A
  • Weight: 7.5oz (212g) including connectors
  • ESC;

  • Length: 3.25" (83mm) Battery Connectors: 2 male Ultra Deans plugs
  • Width: 1.5' (38mm) Motor Connectors: 4mm bullet (three)
  • Height: 0.67" (17mm) Input Voltage: 12-14 NiMH
  • Weight: 3.8oz (109g) 4 cells LiPo
  • Wire Gauge: 14AWG 8-20V input w/o BEC
  • Output Current: 60A continuous maximum BEC: 5.2V/2A
  • 72A surge maximum Stutter Bump Voltage: 12V
  • Max Output Power: 720 watts Low Voltage Cutoff: 11.6V
  • On-Resistance: 0.003 ohms Thermal Cutoff: 110°C
  • Operating Frequency: 8kHz Timing Angle: 10°
Boat Type: Hydroplane
Completion Level: Ready-To-Run

Parts Listing

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What is an electric boat?

I boat that runs off of batteries and not gas.

What are popular brands of electric boats?

Pro Boat and Dumas

Some boats in this category look just like models. Can they be driven in the water?

Yes, they all can be driven in the water.

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