Brand, Model and Product Type

• Brand: Futaba
• Model: FUT05102721-3
• Product Type: Futaba FUT05102721-3 HPS-H701 brushless servo with S.Bus2, Futaba FUT05102721-3 standard servo 40kg 0.07s, Futaba FUT05102721-3 HV digital servo for large helicopters, Futaba FUT05102721-3 with aluminium case and metal gears, Futaba HPS-H701 servo with 25T spline and dual ball bearings
• Product Color: Black

Dimensions

• Product Length: 4.1 cm – standard footprint for large helicopter servo bays
• Product Width: 2.1 cm – compact enough for multi-servo cyclic and tail setups
• Product Height: 3.8 cm – optimized for vertical mounting in high-torque applications
• Product Weight: 76 g – robust build for structural stability and vibration resistance
• Shipping Weight: 0.13 kg – includes packaging and accessories

Performance Specifications

• Torque at 7.4V: 40.0 kgf.cm – delivers extreme control authority for cyclic and tail surfaces
• Torque at 6.6V: 36.0 kgf.cm – maintains high output under moderate voltage conditions
• Speed at 7.4V: 0.07 sec/60° – ultra-fast actuation for precision maneuvering
• Speed at 6.6V: 0.075 sec/60° – consistent responsiveness across voltage range

Motor and Signal Control

• Motor Type: Brushless – ensures smooth, efficient operation with low power consumption
• Signal Compatibility: PWM and S.Bus2 – supports both traditional and digital control systems

Construction and Materials

• Gear Type: Metal – built for durability under high-load cyclic and tail conditions
• Bearings: Dual ball bearings – enhances mechanical efficiency and reduces wear
• Spline Count: 25T – compatible with Futaba-standard servo horns
• Case Material: Aluminium – improves heat dissipation and structural rigidity

Voltage and Power Requirements

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

Application and Use Case

• Servo Type: Standard – ideal for large helicopters requiring high-torque cyclic and tail control
• Use Case: Cyclic and tail servo for 700–800 class helicopters – engineered for precision and power
• Recommended Aircraft: High-performance 3D and F3C helicopters with demanding control surfaces

What’s in the Box

• 1 × Futaba HPS-H701 Standard Brushless Servo
• Servo horns
• Mounting hardware

What You Require

• Compatible Futaba transmitter with S.Bus2 support
• Power source within 4.8V to 7.4V range

Sold Separately

• Futaba transmitter with programmable servo settings

Product Description of Futaba FUT05102721-3 HPS-H701 brushless servo 

The Futaba FUT05102721-3 HPS-H701 brushless servo with S.Bus2 is a high-performance standard-size servo engineered for large-scale helicopter applications. Designed to deliver exceptional torque and speed, this black servo features a robust brushless motor, metal gear train, and full aluminium case for maximum durability and thermal efficiency. With a torque output of 40.0kgf.cm at 7.4V and a blistering response time of 0.07 seconds per 60°, the Futaba FUT05102721-3 standard servo 40kg 0.07s is ideal for cyclic and tail control in 700–800 class 3D and F3C helicopters. Its compatibility with both PWM and S.Bus2 protocols ensures seamless integration into conventional and advanced digital systems, making it a versatile solution for demanding flight environments.

Key features of the Futaba FUT05102721-3 HPS-H701 brushless servo

• Brushless motor – delivers high-efficiency performance with minimal wear and low power consumption
• Standard-size footprint – fits large helicopter servo bays with ease
• Extreme torque output – 40.0kgf.cm at 7.4V for authoritative cyclic and tail control
• Ultra-fast response – 0.07 sec/60° at 7.4V for precise maneuver execution
• Metal gear train – ensures long-term durability under high-load conditions
• Dual ball bearings – enhances mechanical efficiency and reduces internal friction
• 25T spline – compatible with Futaba-standard servo horns and linkages
• Aluminium case – improves heat dissipation and structural rigidity

Why is the Futaba FUT05102721-3 HV digital servo for large helicopters ideal for high-demand flight?

The Futaba FUT05102721-3 HV digital servo for large helicopters is built to meet the extreme demands of high-performance rotorcraft. With a torque rating of 40.0kgf.cm and a speed of 0.07 seconds per 60°, this servo provides the strength and responsiveness needed for aggressive cyclic inputs and tail corrections. Its high-voltage compatibility ensures consistent output across a wide range of operating conditions, while the digital control architecture delivers precise signal interpretation. Whether you're flying high-speed 3D routines or precision F3C patterns, this servo offers the control fidelity required for expert-level performance.

How does the Futaba HPS-H701 servo with 25T spline and dual ball bearings enhance reliability?

Reliability is critical in large helicopter servos, and the Futaba HPS-H701 servo with 25T spline and dual ball bearings is engineered for long-term durability. The dual ball bearing system reduces mechanical resistance, allowing smoother motion and minimizing wear over time. The 25T spline ensures secure linkage with standard Futaba horns, eliminating play and ensuring consistent control input. These features work together to maintain servo integrity during high-torque operations, making the HPS-H701 a dependable choice for serious pilots.

What makes the Futaba FUT05102721-3 with aluminium case and metal gears suitable for extreme conditions?

The Futaba FUT05102721-3 with aluminium case and metal gears is designed to withstand the rigors of high-stress flight environments. The full aluminium housing provides superior heat dissipation, protecting internal components from thermal buildup during prolonged operation. The metal gear train resists deformation and wear under heavy loads, ensuring consistent torque delivery throughout the flight. These structural enhancements make the servo ideal for large helicopters where mechanical resilience is non-negotiable.

Is the Futaba brushless servo for 3D/F3C cyclic and tail control versatile across flight modes?

The Futaba brushless servo for 3D/F3C cyclic and tail control offers the versatility needed to handle a wide range of flight styles. Its rapid response and high torque output make it suitable for aggressive 3D maneuvers, while its precision and stability support the nuanced control required in F3C competition. The servo’s compatibility with both PWM and S.Bus2 protocols allows users to tailor their setup based on aircraft architecture and control preferences, making it a flexible solution for pilots who fly across multiple disciplines.

How does the Futaba FUT05102721-3 standard servo 40kg 0.07s improve flight precision?

Flight precision depends on responsive and consistent control, and the Futaba FUT05102721-3 standard servo 40kg 0.07s 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 helicopter pilots seeking a high-torque, fast-response servo with advanced signal support and rugged construction, the affordable Futaba HPS-H701 with 0.07s speed and 40kg torque offers unmatched value and reliability. Buy Futaba FUT05102721-3 servo with mounting hardware and horns today.

Technical Specifications of Futaba FUT05102721-3 HPS-H701 brushless servo

Brand, Model and Product Type

• Brand: Futaba
• Model: FUT05102721-3
• Product Type: Futaba FUT05102721-3 HPS-H701 brushless servo with S.Bus2, Futaba FUT05102721-3 standard servo 40kg 0.07s, Futaba FUT05102721-3 HV digital servo for large helicopters, Futaba FUT05102721-3 with aluminium case and metal gears, Futaba HPS-H701 servo with 25T spline and dual ball bearings
• Product Color: Black

Dimensions

• Product Length: 4.1 cm – standard footprint for large helicopter servo bays
• Product Width: 2.1 cm – compact enough for multi-servo cyclic and tail setups
• Product Height: 3.8 cm – optimized for vertical mounting in high-torque applications
• Product Weight: 76 g – robust build for structural stability and vibration resistance
• Shipping Weight: 0.13 kg – includes packaging and accessories

Performance Specifications

• Torque at 7.4V: 40.0 kgf.cm – delivers extreme control authority for cyclic and tail surfaces
• Torque at 6.6V: 36.0 kgf.cm – maintains high output under moderate voltage conditions
• Speed at 7.4V: 0.07 sec/60° – ultra-fast actuation for precision maneuvering
• Speed at 6.6V: 0.075 sec/60° – consistent responsiveness across voltage range

Motor and Signal Control

• Motor Type: Brushless – ensures smooth, efficient operation with low power consumption
• Signal Compatibility: PWM and S.Bus2 – supports both traditional and digital control systems

Construction and Materials

• Gear Type: Metal – built for durability under high-load cyclic and tail conditions
• Bearings: Dual ball bearings – enhances mechanical efficiency and reduces wear
• Spline Count: 25T – compatible with Futaba-standard servo horns
• Case Material: Aluminium – improves heat dissipation and structural rigidity

Voltage and Power Requirements

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

Application and Use Case

• Servo Type: Standard – ideal for large helicopters requiring high-torque cyclic and tail control
• Use Case: Cyclic and tail servo for 700–800 class helicopters – engineered for precision and power
• Recommended Aircraft: High-performance 3D and F3C helicopters with demanding control surfaces

What’s in the Box

• 1 × Futaba HPS-H701 Standard Brushless Servo
• Servo horns
• Mounting hardware

What You Require

• Compatible Futaba transmitter with S.Bus2 support
• Power source within 4.8V to 7.4V range

Sold Separately

• Futaba transmitter with programmable servo settings

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.