FUTABA HPS-H701 40KG High Torque HV S.BUS2 Brushless Servo

The Futaba HPS-H701 is part of the HPBLS series specially designed for large-scale helicopters. It combines high torque with low power consumption, completely breaking the traditional trade-off between high speed and energy efficiency. With its precise centering, stable output, and responsive high-frequency control, this servo offers smoother and more reliable performance for flight or model operations.

Key Features

1. High Torque & Fast Response

   • Delivers up to 40.0 kgf·cm of torque at 7.4V, with a speed of 0.07 sec/60°
   • Delivers up to 36.0 kgf·cm of torque at 6.6V, with a speed of 0.075 sec/60°
   • Whether for high-speed flight or precise hovering, it ensures quick and stable control

2. Low Power Consumption

   • The HPS series is optimized to reduce energy usage, maintaining excellent efficiency and performance even over extended operation

3. High-Strength Gears & Aluminum Housing

   • Equipped with metal gears (1–3) and a titanium final gear
   • Three aluminum alloy segments (top, middle, and bottom) enhance heat dissipation and structural stability

4. S.BUS2 System Support

   • Fully compatible with Futaba’s S.BUS2 control system, delivering simplified communication and convenient setup for a variety of applications

5. Broad Application Range

   • Recommended for large helicopters, but also suitable for 1:4, 1:5, 1:6, 1:8, 1:10, 1:12, 1:14, 1:15, 1:16, 1:18 scale models

Specifications

• Model: HPS-H701
• Brand: Futaba
• Type: HPBLS Series Servo for Large Helicopters
• MPN: HPS-H701 / 037658
• Speed:
  • 0.07 sec/60° (7.4V)
  • 0.075 sec/60° (6.6V)
• Torque:
  • 40.0 kgf·cm (7.4V)
  • 36.0 kgf·cm (6.6V)
• Dimensions: 40.5 × 21.0 × 37.8 mm
• Weight: Approx. 76 g
• Power Supply: 6.0–7.4V (dry cell batteries or unapproved BECs cannot be used)

Important Notes

• This product is a high-performance servo. Please ensure the power supply meets the 6.0–7.4V specification before use
• Do not use standard dry cell batteries or unapproved BEC to power the servo directly
• During installation and adjustment, ensure correct gear engagement and proper attachment of all accessories

Replacement/Optional Parts

• Gear Set: 308925
• Case Set: 308888
• Horn: Φ6
• Rubber Bushing: 302787
• Eyelet: 302770

Combining high speed with powerful torque, the Futaba HPS-H701 provides efficient and stable control for large-scale helicopters and other demanding RC model applications. It delivers high torque output alongside precise centering and low power consumption, ensuring smooth and steady performance in any challenging environment. If you’re looking for a top-tier servo that excels under tough conditions, the HPS-H701 is the ideal choice.

Dimensions of a servo motor: 54.5 x 21.0 mm, with various mounting holes and connectors detailed.