Brand, Model and Product Type

• Brand: Futaba
• Model: FUT05102723-3
• Product Type: Futaba FUT05102723-3 HPS-A703 brushless servo with S.Bus2, Futaba FUT05102723-3 standard servo 66kg 0.12s, Futaba FUT05102723-3 HV digital servo for giant scale aircraft, Futaba FUT05102723-3 with stainless steel gears and aluminium case, Futaba HPS-A703 servo with 25T spline and CIU-3 compatibility
• Product Color: Black

Dimensions

• Product Length: 4.1 cm – standard footprint for large aircraft servo bays
• Product Width: 2.1 cm – compact enough for multi-servo installations
• Product Height: 3.9 cm – optimized for vertical mounting in high-load applications
• Product Weight: 82 g – robust construction for vibration resistance and structural stability
• Shipping Weight: 0.14 kg – includes packaging and mounting accessories

Performance Specifications

• Torque at 7.4V: 66.0 kgf.cm – delivers extreme control authority for oversized control surfaces
• Torque at 6.6V: 61.0 kgf.cm – maintains high output under moderate voltage conditions
• Speed at 7.4V: 0.12 sec/60° – fast actuation for precision maneuvering in large aircraft
• Speed at 6.6V: 0.13 sec/60° – consistent responsiveness across voltage range

Motor and Signal Control

• Motor Type: Custom high-power brushless – ensures efficient, low-friction operation with minimal power draw
• Signal Compatibility: PWM and S.Bus2 – supports both traditional and digital control systems
• PC Connectivity: Compatible with CIU-2 / CIU-3 USB adapter – enables advanced programming and configuration

Construction and Materials

• Gear Type: Stainless steel final gear – built for durability under continuous high-load conditions
• Bearings: Dual ball bearings – enhances mechanical efficiency and reduces internal wear
• Spline Count: 25T – compatible with Futaba-standard servo horns
• Case Material: Aluminium (upper, middle, bottom) – improves heat dissipation and structural rigidity

Voltage and Power Requirements

• Rated Voltage: DC 6.0V – 7.4V – optimized for high-voltage aircraft systems
• Operating Voltage: DC 4.8V – 8.4V – supports a broad range of regulated power sources
• Battery Compatibility: Dry batteries and BEC systems not supported – use regulated LiPo or dedicated power modules only

Application and Use Case

• Servo Type: Standard – ideal for giant scale aircraft requiring high-torque control
• Use Case: Elevator, rudder, flap, and aileron control – engineered for precision and power
• Recommended Aircraft: Large-scale planes and aerobatic giants with demanding control surfaces
• Upgrade Path: Suggested replacement for BLS172SV and BLS177SV servos

What’s in the Box

• 1 × Futaba HPS-A703 Standard Brushless Servo
• Servo horns
• Mounting hardware

What You Require

• Compatible Futaba transmitter with S.Bus2 support
• Power source within 4.8V to 8.4V range
• CIU-2 or CIU-3 USB adapter for PC programming (sold separately)

Sold Separately

• Futaba transmitter with programmable servo settings
• CIU-2 / CIU-3 USB adapter

Product Description of Futaba FUT05102723-3 HPS-A703 brushless servo with S.Bus2

The Futaba FUT05102723-3 HPS-A703 brushless servo with S.Bus2 is engineered for giant scale aircraft requiring uncompromising torque, precision, and reliability. Designed as part of Futaba’s HPBLS series, this black standard-size servo delivers an exceptional torque output of 66.0kgf.cm at 7.4V and a swift response time of 0.12 seconds per 60°, making it ideal for controlling large control surfaces such as elevators, rudders, and flaps. The Futaba FUT05102723-3 standard servo 66kg 0.12s features a custom high-power brushless motor, stainless steel final gear, and a full aluminium case, ensuring long-term durability and thermal stability under demanding flight conditions. With support for both PWM and S.Bus2 protocols, this servo integrates seamlessly into traditional and advanced digital systems, while CIU-3 compatibility allows for PC-based programming and customization.

Key features of the Futaba FUT05102723-3 HPS-A703 brushless servo

• High-power brushless motor – delivers efficient, low-friction performance with minimal power draw
• Standard-size footprint – fits seamlessly into giant scale aircraft servo bays
• Extreme torque output – 66.0kgf.cm at 7.4V for confident control of large surfaces
• Fast response – 0.12 sec/60° at 7.4V for precise actuation under heavy load
• Stainless steel final gear – ensures long-term durability and resistance to wear
• Dual ball bearings – enhances mechanical efficiency and smooth motion
• 25T spline – compatible with Futaba-standard servo horns and linkages
• Aluminium case – improves heat dissipation and structural rigidity

Why is the Futaba FUT05102723-3 HV digital servo for giant scale aircraft ideal for extreme control?

The Futaba FUT05102723-3 HV digital servo for giant scale aircraft is built to meet the demands of large airframes that require high torque and responsive control. With a torque rating of 66.0kgf.cm and a speed of 0.12 seconds per 60°, this servo provides the authority and agility needed to manage oversized control surfaces with precision. Its high-voltage compatibility ensures consistent output across a broad operating range, while the programmable interface allows users to fine-tune performance parameters. Whether you're flying aerobatic giants or scale aircraft, this servo offers the reliability and control fidelity required for confident flight.

How does the Futaba HPS-A703 servo with 25T spline and CIU-3 compatibility support advanced configurations?

Advanced aircraft setups benefit from the configurability of the Futaba HPS-A703 servo with 25T spline and CIU-3 compatibility. The 25T spline ensures secure linkage with standard Futaba horns, while CIU-3 support enables PC-based programming for detailed parameter adjustments. This allows users to customize servo behavior to match specific flight profiles, control surface loads, and transmitter settings. The result is a servo that not only performs reliably but also adapts to the unique demands of each aircraft configuration.

What makes the Futaba FUT05102723-3 with stainless steel gears and aluminium case durable under stress?

Durability is a hallmark of the Futaba FUT05102723-3 with stainless steel gears and aluminium case. The stainless steel final gear resists deformation and wear, even under continuous high-load conditions. The full aluminium housing provides excellent heat dissipation and structural integrity, protecting internal components from vibration and thermal stress. These materials work together to ensure long-term reliability, making the servo suitable for high-performance aircraft that operate in demanding environments.

Is the Futaba brushless servo for BLS172SV/177SV upgrade path compatible with legacy systems?

The Futaba brushless servo for BLS172SV/177SV upgrade path offers a seamless transition from previous-generation servos. With support for both PWM and S.Bus2 protocols, it integrates easily into legacy receiver systems while providing access to advanced digital features. Its performance profile exceeds that of its predecessors, delivering higher torque, faster response, and improved thermal management. This makes it a compelling upgrade for pilots looking to enhance control fidelity without overhauling their entire setup.

How does the Futaba FUT05102723-3 standard servo 66kg 0.12s improve flight precision?

Flight precision depends on responsive and consistent control, and the Futaba FUT05102723-3 standard servo 66kg 0.12s delivers both. Its brushless motor ensures smooth actuation with minimal latency, while the high torque rating provides the authority needed to maintain control during rapid transitions. The servo’s digital signal processing ensures accurate interpretation of input commands, reducing drift and improving overall flight stability. These attributes make it a top-tier choice for pilots who demand exacting performance from their control systems.

For aircraft builders seeking a high-torque, fast-response servo with advanced signal support and rugged construction, the affordable Futaba HPS-A703 with 0.12s speed and 66kg torque offers unmatched value and reliability. Buy Futaba FUT05102723-3 servo with mounting hardware and horns today.

Technical Specifications of Futaba FUT05102723-3 HPS-A703 brushless servo with S.Bus2 

Brand, Model and Product Type

• Brand: Futaba
• Model: FUT05102723-3
• Product Type: Futaba FUT05102723-3 HPS-A703 brushless servo with S.Bus2, Futaba FUT05102723-3 standard servo 66kg 0.12s, Futaba FUT05102723-3 HV digital servo for giant scale aircraft, Futaba FUT05102723-3 with stainless steel gears and aluminium case, Futaba HPS-A703 servo with 25T spline and CIU-3 compatibility
• Product Color: Black

Dimensions

• Product Length: 4.1 cm – standard footprint for large aircraft servo bays
• Product Width: 2.1 cm – compact enough for multi-servo installations
• Product Height: 3.9 cm – optimized for vertical mounting in high-load applications
• Product Weight: 82 g – robust construction for vibration resistance and structural stability
• Shipping Weight: 0.14 kg – includes packaging and mounting accessories

Performance Specifications

• Torque at 7.4V: 66.0 kgf.cm – delivers extreme control authority for oversized control surfaces
• Torque at 6.6V: 61.0 kgf.cm – maintains high output under moderate voltage conditions
• Speed at 7.4V: 0.12 sec/60° – fast actuation for precision maneuvering in large aircraft
• Speed at 6.6V: 0.13 sec/60° – consistent responsiveness across voltage range

Motor and Signal Control

• Motor Type: Custom high-power brushless – ensures efficient, low-friction operation with minimal power draw
• Signal Compatibility: PWM and S.Bus2 – supports both traditional and digital control systems
• PC Connectivity: Compatible with CIU-2 / CIU-3 USB adapter – enables advanced programming and configuration

Construction and Materials

• Gear Type: Stainless steel final gear – built for durability under continuous high-load conditions
• Bearings: Dual ball bearings – enhances mechanical efficiency and reduces internal wear
• Spline Count: 25T – compatible with Futaba-standard servo horns
• Case Material: Aluminium (upper, middle, bottom) – improves heat dissipation and structural rigidity

Voltage and Power Requirements

• Rated Voltage: DC 6.0V – 7.4V – optimized for high-voltage aircraft systems
• Operating Voltage: DC 4.8V – 8.4V – supports a broad range of regulated power sources
• Battery Compatibility: Dry batteries and BEC systems not supported – use regulated LiPo or dedicated power modules only

Application and Use Case

• Servo Type: Standard – ideal for giant scale aircraft requiring high-torque control
• Use Case: Elevator, rudder, flap, and aileron control – engineered for precision and power
• Recommended Aircraft: Large-scale planes and aerobatic giants with demanding control surfaces
• Upgrade Path: Suggested replacement for BLS172SV and BLS177SV servos

What’s in the Box

• 1 × Futaba HPS-A703 Standard Brushless Servo
• Servo horns
• Mounting hardware

What You Require

• Compatible Futaba transmitter with S.Bus2 support
• Power source within 4.8V to 8.4V range
• CIU-2 or CIU-3 USB adapter for PC programming (sold separately)

Sold Separately

• Futaba transmitter with programmable servo settings
• CIU-2 / CIU-3 USB adapter

We want to make sure your delivery goes smoothly, so here are some important details about our service:

• For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
• Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
• Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
• If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
• We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
• As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
• If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
• For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.