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700 Size 1/9 Scale GOOSKY E7 UH-1Y 2.4G 6CH RC Helicopter Model with CNC Metal Main Body, Belt-Driven Tail and Mechanical Bearing System（RTF Version）
Features:
.The 1:9 scale realistic 700-class fuselage measures 468 × 352 mm, with a dry weight of 6.2 kg and a maximum takeoff weight of 8 kg. The main rotor measures 1,562 mm and supports interchangeable 580–650 mm rotor blades. Beginners can choose the RTF version for immediate flight, while experienced pilots and engineering test personnel can choose the ARF/BNF versions for custom modifications. Whether flying outdoors in strong winds, practicing aerobatics, or operating in aerial photography areas, the large rotor provides excellent wind resistance, while the smooth flight characteristics deliver stable, precise handling without excessive drifting.
.The main shaft measures 15 mm in diameter, while the tail shaft measures 6 mm. The main gear ratio is 1:10.545, the tail gear ratio is 1:5, and the tail transmission uses a 7 mm wide belt-drive system. Daily practice pilots and commercial operators who perform long-term operations can enjoy reduced gear and belt replacement frequency. With lower wear during frequent outdoor test flights, the straightforward disassembly and maintenance design helps significantly reduce service time and replacement component costs.
.Compatible with 450–530KV motors, including multiple 4525–5024 motor options, the helicopter comes equipped with a 12S 180–300A ESC and a battery compartment measuring up to 320 × 50 × 60 mm. Pilots with different preferences, from aggressive aerobatics and smooth aerial photography to heavy-load operations, can freely customize the power system. Use a smaller battery for lightweight short-distance recreational flights, or install a higher-capacity lithium battery for extended outdoor operations. The ARF version allows complete customization, while the RTF version comes factory-tuned to suit different flying styles.
.The tail rotor measures 284 mm in diameter and supports 105–110 mm tail blades. The complete tail transmission system is factory-matched and calibrated for optimized performance. Whether you're a beginner with limited rudder control experience or a professional pilot performing precision mapping and aerial photography, the system helps maintain accurate heading control during crosswind, low-altitude, and low-speed operations. It reduces the need for constant rudder corrections, provides greater control tolerance, and makes the overall flight experience more effortless.
.The helicopter features large-diameter load-bearing shafts and ample reserved mounting positions throughout the airframe, while supporting multiple main and tail rotor specifications. Model modification enthusiasts can replace the realistic fuselage with custom components or add 3D-printed pilot figure accessories through DIY projects at home. For outdoor operations, aerial photography and surveying equipment can also be installed. One versatile platform can therefore support both recreational and commercial applications.
.Three versions are available: ARF (Almost Ready to Fly) kit, BN (Bind-N-Fly) semi-assembled version, and RTF (Ready to Fly) version. The complete aircraft is factory-assembled with the transmission system run-in and tested. Experienced users with strong hands-on skills can choose the ARF version and customize their own electronics. Pilots who want to get in the air quickly can choose the RTF version. For cross-border distributors, the standardized packaging dimensions also make the product space-efficient for ocean shipping and warehouse storage, helping reduce inventory and stocking costs.
.The 12S high-voltage power system is paired with an ESC rated for up to 300A, while the large battery compartment accommodates high-capacity battery cells. Outdoor aerial photography teams and pilots performing extended aerobatic flights can benefit from consistent power output during continuous operation. Even when carrying custom pilot figures or additional external equipment for heavy-load flights, the helicopter maintains stable power delivery without requiring frequent mid-flight battery changes.
Specifications:
.Material: Metal + High-strength Composite Material
.Scale: 1:9
.Overall Height: 468mm
.Overall Width: 352mm
.Main Gear: 116T
.Motor Pinion: 11T
.Front Belt Pulley: 100T
.Tail Belt Pulley: 20T
.Helicopter Weight (without battery)≈6.2kg
.Takeoff Weight: Approx.8kg
.Recommended ESC: 12s 180A-300A
.Maximum Battery Compartment Dimensions: 3205060mm
.Recommended Motor Sizes: 4525/4530/4535/4726/4730/4925/5024
.Recommended Motor KV: 450-530KV
.Main Shaft Diameter: 15mm
.Feathering Shaft Diameter: 10mm
.Main Rotor Diameter: 1562mm
.Tail Rotor Diameter: 284mm
.Tail Shaft Diameter: 6mm
.Drive Belt Width: 7mm
.Main Gear Ratio: 1: 10.545
.Tail Drive Ratio: 1: 5
.Main Rotor Blade Length: 580-650mm
.Tail Rotor Blade Length: 105-110mm
. .Product Weight: 8300g
.Package Weight: 17300g
.Product Dimensions: 188.8x35.2x46.8cm
.Package Dimensions: 155x38x46cm
.Packing: Box
.Ages:16+
