This is the electric powered, radio controlled, ready to run AquaCraft UL-1 Superior Brushless FE Competition Hydroplane. For ages 14 and older. 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-240 2.4GHz system, 2-ch pistol grip transmitter with steering and throttle, and steering trim adjustment, Tactic TSX200 standard servo for rudder control, Tactic TR324 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 Warranty: Ninety day limited INCLUDES: AquaCraft UL-1 Hydroplane, brushless marine motor and ESC, 2.4GHz radio system, decal sheet, instruction manual and plywood stand REQUIRES: AA Batteries: Four for transmitter LiPo Batteries: Two ElectriFly LiPo 3200mAh 7.4V Battery Charger: LiPo Compatible, GPMM3152 Cell Balancer: GPMM3160 Radio Box Tape: AQUB9514 Grease: AQUB9500 SPECS: 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° COMMENTS: Available in the following colors: Yellow, AQUB20YY Orange, AQUB20NN Red, AQUB20RR White, AQUB20WW Optional GrimRacer Propellers for this boat include; 40 x 52 3-blade metal, AQUB9720 L38 x 55 Lifter, AQUB9755 L40 x 57 3 blade metal, AQUB9760 Good choices for optional batteries include; ElectriFly 5300mAh 7.4V 25C LiPo jxs 11/14/08 ir/jxs