Key Features

• Designed for 70E–80E class RC airplanes (approx. 60–64” wingspan)
• Ideal for:
  • 3D aerobatic aircraft up to ~3.3 kg
  • Sport/aerobatic models up to ~7 kg
• High-performance outrunner motor design (24-slot / 28-pole configuration)
• Racing Edition (MKII) with upgraded efficiency and power output
• Hand-wound stator for improved efficiency and precision
• Open-frame design with centrifugal cooling for better heat dissipation
• Built with high-quality components:
  • Premium magnets
  • Precision windings
  • EZO bearings
• Direct-drive system (no gearbox required)
• Designed as a high-power electric alternative to glow/gas engines

Specifications (GA1500R.9 MKII – 545KV)

General

• Motor Type: Brushless outrunner
• KV Rating: 545 KV
• Pole Count: 28 poles
• Slot Configuration: 24 slots
• Weight: ~305 g

Dimensions

• Diameter: 69 mm
• Motor Length: 58 mm
• Overall Length: 90 mm
• Shaft Diameter: 8 mm
• Mounting Hole Spacing: 55–58 mm

Electrical Performance

• Recommended Voltage: 5S–6S LiPo (18.5V–22.2V)
• Peak Power (15s): ~1950–2112W
• Max Current (burst): ~88A
• Continuous/Cruise Power: ~977W
• Internal Resistance: 12.9 mΩ
• No-load Current: ~2.3A @ 10V

Recommended Setup

• ESC: 100–120A
• Propellers:
  • 14×7 → efficient baseline
  • 15×8 → balanced performance
  • 16×7–16×8 (carbon) → high performance / 3D

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