Futaba HPS-A703 Brushless HV Servo S.Bus2 (FUT05102723-3)

The Futaba HPS-A703 is a high-voltage, brushless standard-size servo designed for demanding RC aircraft applications. Offering swift response and strong holding power, it provides a transit speed of 0.12s/60° at 7.4V with substantial torque, all within a robust aluminium case with a stainless steel final gear. Part number FUT05102723-3.

Suggested compatibility: giant-scale aeroplanes. Control via conventional PWM is available, and S.Bus/S.Bus2 programming and setup are supported through Futaba tools.

Important: NO DRY BATTERY OR BEC USE.

Key Features

• High-performance brushless motor design (HV)
• Standard-size servo for all-purpose giant-scale aeroplane use (suggested compatibility)
• Programmable operation with S.Bus and S.Bus2 systems
• PC connection possible using Futaba CIU-2 or CIU-3 USB adapter (sold separately)
• Aluminium upper/middle/bottom case for enhanced rigidity and cooling
• Stainless steel final gear
• Suggested upgrade for Futaba BLS172SV/BLS177SV

What’s In The Box

• 1x HPS-A703 Standard Brushless Servo
• Servo horns
• Mounting hardware

Performance

• Speed: 0.13 sec/60° (6.6V); 0.12 sec/60° (7.4V)
• Torque: 61.0 kgf/cm (6.6V); 66.0 kgf/cm (7.4V)

Specifications

• Rated voltage: DC 6.0V–7.4V
• Operating voltage range: DC 4.8V–8.4V
• Size (L x W x H): 40.5 x 21.0 x 39.4 mm
• Weight: 82 g
• Colour: Black
• Material: Metal case; stainless steel final gear
• Servo size: Standard
• Age recommendation: 14+
• Shipping weight: 0.14 kg

This Futaba HPS-A703 Standard Brushless Servo PWM/S.Bus2 – 74.0kg – 0.12s delivers reliable, programmable control for advanced builds where strength and speed are essential.