The Spektrum P-SPMSA6310 A6310 standard-size HV servo with 350 oz-in torque and .10 sec transit speed is engineered for high-performance aerobatic and sport aircraft that demand precision, durability, and speed. Designed for 60–120cc models and giant-scale platforms, this digital brushless servo combines a powerful motor with a tightly meshed metal gear train and dual ball bearings—all housed in a heat-dissipating aluminum center case. Whether you're executing aggressive 3D maneuvers or maintaining control authority in high-load conditions, the A6310 delivers consistent torque and rapid response across the full HV voltage range of 6.0–8.4V.
Key features of the Spektrum P-SPMSA6310 A6310 HV servo
- Brushless motor – ultra-smooth performance with reduced wear and increased efficiency
- 350 oz-in torque – maximum output at 8.4V for demanding control surfaces
- 0.10 sec transit speed – fast actuation for precision aerobatic control
- Metal gear train – low-wear, tightly meshed for virtually slop-free operation
- Dual ball bearings – smooth rotation and long-term reliability
- Aluminum center case – enhances heat dissipation and structural integrity
- Soft start – protects airframe from sudden initialization jolts
- Failsafe hold – retains last known position if signal is lost
- Over-current and temperature protection – safeguards internal components
- Universal connector – 18.1" 22 AWG wiring for flexible installation
Why is the Spektrum P-SPMSA6310 ideal for aerobatic and sport aircraft?
The Spektrum P-SPMSA6310 digital HV servo for 60–120cc aerobatic and giant-scale sport aircraft is purpose-built for pilots who require high torque and rapid response in demanding flight conditions. With a torque rating of 350 oz-in at 8.4V and a transit speed of 0.10 sec, the A6310 provides the control authority needed for precision maneuvers and aggressive aerobatics. Its brushless motor ensures consistent performance with minimal wear, while the metal gear train and dual ball bearings maintain alignment and smooth operation under stress. Whether you're flying IMAC routines or sport-scale models, this servo delivers the responsiveness and reliability needed to perform at the highest level.
How does the aluminum center case improve thermal performance?
The Spektrum P-SPMSA6310 brushless aircraft servo with metal gears, dual ball bearings, and aluminum center case features a heat-dissipating aluminum midsection that regulates internal temperatures during extended operation. This design helps protect the motor and electronics from thermal stress, ensuring consistent performance even in high-load scenarios. The aluminum case also adds structural rigidity, making the A6310 suitable for installations where vibration and impact resistance are critical. Combined with high-impact polymer housing components, the servo offers a durable and thermally stable platform for advanced flight control.
What makes the gear train virtually slop-free?
The Aircraft-grade servo with 50–400Hz frequency range and low-wear gear train uses precision-machined metal gears supported by dual ball bearings. This configuration minimizes backlash and ensures accurate movement, even under heavy torque. The result is a servo that holds position reliably and responds instantly to input—essential for maintaining control during high-speed or high-G maneuvers. The gear train’s low-wear design also contributes to long-term durability, reducing maintenance and preserving performance over time.
How does the A6310 protect itself during operation?
The Spektrum P-SPMSA6310 with soft start, failsafe hold, and over-current/temperature protection includes multiple safeguards to ensure safe and reliable performance. Soft start prevents abrupt jolts during power-up, protecting both the servo and the airframe. Over-current and temperature protection monitor internal conditions and adjust operation to prevent damage. In the event of signal loss, the failsafe hold feature retains the last known position, helping maintain aircraft stability until control is restored. These features combine to deliver peace of mind in every flight.
Is the A6310 compatible with high-voltage systems?
Yes. The High-voltage brushless servo with 23T spline, 3µs deadband, and 18.1" universal connector supports an input range of 6.0–8.4V, making it ideal for HV setups with adjustable BEC ESCs. Operating at 8.4V unlocks the servo’s full torque and speed potential, while the 22 AWG wiring ensures stable current delivery. The 23T spline offers compatibility with standard servo arms, and the 18.1" wire length provides installation flexibility across large airframes. Whether you're upgrading an existing system or building from scratch, the A6310 integrates seamlessly into high-performance aircraft builds.
Why choose the Spektrum P-SPMSA6310 for your next aircraft project?
The Best brushless metal gear servo with 350 oz-in torque and aluminum heat-dissipating case offers a powerful blend of speed, strength, and reliability in a standard-size format. From its brushless motor and slop-free gear train to its thermal management and failsafe features, every aspect of the A6310 is engineered for elite-level performance. Whether you're flying precision aerobatics or sport-scale aircraft, this servo delivers the control fidelity and resilience needed to push your aircraft to its limits.
Buy Spektrum P-SPMSA6310 A6310 HV servo for high-performance aerobatic and sport aircraft builds.
Overview
The Spektrum P-SPMSA6310 A6310 is a premium standard-size HV servo engineered for high-performance aerobatic and sport aircraft that demand precision, durability and exceptional speed. This digital brushless servo represents the pinnacle of servo technology, combining a powerful brushless motor with a tightly meshed metal gear train and dual ball bearings—all housed in a heat-dissipating aluminium centre case. Whether you're executing aggressive 3D maneuvers, maintaining control authority in high-load conditions, or flying demanding 60–120cc models and giant-scale platforms, the A6310 delivers consistent torque and rapid response across the full HV voltage range of 6.0–8.4V. For RC enthusiasts in the UK seeking a brushless servo solution that won't compromise on performance, this is a servo that serious pilots trust.
The A6310 stands apart from conventional servos through its brushless motor design, which eliminates the wear associated with traditional brushed motors and provides ultra-smooth performance with increased efficiency. With a torque rating of 350 oz-in at maximum 8.4V and an impressive transit speed of just 0.10 seconds, this servo provides the control authority and responsiveness needed for precision aerobatic maneuvers. It's the choice of competitive RC pilots and experienced enthusiasts who fly high-performance aircraft where servo reliability and response speed are critical. The combination of brushless technology, metal gearing, and dual ball bearing support makes the A6310 an investment in consistent, long-term performance.
RC Model Shop stocks the Spektrum A6310 for UK customers seeking premium servo solutions for their most demanding aircraft projects. This servo represents genuine Spektrum engineering and quality, backed by decades of innovation in RC servo technology.
Key Features
- Brushless motor — The A6310 features an advanced brushless motor design that delivers ultra-smooth performance with significantly reduced wear compared to traditional brushed alternatives, ensuring long-term reliability and consistent output across extended flight sessions.
- 350 oz-in torque output — Maximum torque is delivered at 8.4V, providing exceptional control authority for demanding control surfaces on large-scale and aerobatic aircraft, allowing pilots to execute aggressive maneuvers with precision and confidence.
- 0.10 second transit speed — This rapid actuation rate ensures fast, precise response to pilot inputs, which is essential for aerobatic control where every millisecond matters and delayed servo response can affect flight characteristics.
- Metal gear train — The tightly meshed metal gear construction provides low-wear operation and virtually slop-free performance, maintaining precise control authority throughout the servo's operational lifespan without the backlash issues common in plastic gears.
- Dual ball bearings — Precision ball bearings support smooth rotation and deliver long-term reliability, ensuring that the servo maintains its responsiveness and durability even under the demanding conditions of competitive aerobatic flying.
- Aluminium centre case — The heat-dissipating aluminium housing enhances both structural integrity and thermal management, allowing the servo to maintain optimal operating temperatures during extended flight operations and high-load conditions.
- Soft start protection — This intelligent feature protects your airframe from sudden initialization jolts that could stress control surfaces or cause unwanted movements during system startup.
- Failsafe hold capability — If your RC signal is lost during flight, the A6310 retains the last known position, maintaining control surface alignment and helping ensure safer descent or landing.
- Over-current and temperature protection — Built-in protection circuits safeguard internal components from electrical stress and thermal damage, extending the servo's operational lifespan and protecting your investment.
- Universal connector with 18.1" wiring — The standard 22 AWG servo lead (18.1 inches long) with universal connector design provides flexible installation options across different aircraft platforms and control systems, making integration straightforward for builders and upgraders.
- High-voltage capability — The A6310 operates across the full HV voltage range of 6.0–8.4V, allowing you to harness maximum torque output at 8.4V or adjust performance characteristics based on your specific aircraft and flying style requirements.
Technical Performance
The Spektrum P-SPMSA6310 A6310 represents cutting-edge servo engineering for precision-focused RC pilots. Built around a brushless motor platform, this servo delivers performance characteristics that simply aren't achievable with traditional brushed designs. The brushless architecture eliminates the commutator brush wear that plagues conventional servos, resulting in performance that remains consistent across hundreds of flight hours. The motor is paired with a precisely engineered metal gear train featuring tightly meshed gears that operate with virtually zero backlash—critical for maintaining control authority in aerobatic manoeuvres where even slight gear slop can affect control response. Two precision ball bearings support the servo output shaft, providing smooth rotation and long-term reliability that stands up to the demanding conditions of competitive aerobatic flying and giant-scale aircraft operation. The aluminium centre case isn't merely cosmetic; it functions as a heat sink, actively dissipating the thermal energy generated during extended high-load operation, ensuring the servo maintains optimal performance even during sustained aerobatic sequences. At 350 oz-in torque at 8.4V and 0.10 second transit speed, the A6310 offers the control authority and responsiveness demanded by professional and competitive RC pilots. The servo's digital control electronics provide precise position holding and smooth ramp speeds, eliminating the jerky movements sometimes associated with analogue servos. Dual ball bearings and the metal gear train ensure smooth, predictable operation that translates directly into precise aircraft control. This is a servo engineered for pilots who understand that servo performance directly impacts aircraft control characteristics and who refuse to compromise on quality. Whether you're flying 60cc or 120cc aerobatic aircraft or giant-scale platforms, the A6310 provides the performance foundation needed for consistent, competitive-level flight operations.
What's in the Box
- Spektrum A6310 digital HV brushless servo with 18.1" standard servo lead and universal connector
Frequently Asked Questions
- What voltage should I run the Spektrum A6310 servo at? — The A6310 is rated for operation across the full HV range of 6.0–8.4V. Running at 8.4V (typically from a 2S LiPo battery) delivers the maximum 350 oz-in torque specification. You can also operate it at lower voltages for reduced torque and potentially extended battery runtime, though peak performance is achieved at the higher voltage rating.
- Is the A6310 brushless servo suitable for beginners? — The A6310 is not designed as a beginner servo. This is a premium, high-performance component engineered for experienced pilots flying high-performance aerobatic and giant-scale aircraft. Beginners and sport flyers would typically find smaller, less expensive servos more suitable for their needs. However, if you're building or upgrading to a serious aerobatic platform and have flying experience, the A6310 is absolutely worth considering.
- What makes brushless servo technology better than traditional brushed servos? — Brushless servos eliminate the carbon brushes and commutator found in brushed servos, which are the primary wear components in traditional designs. Without brush wear, brushless servos like the A6310 maintain consistent performance across thousands of hours of operation, deliver smoother motion with less electrical noise, and provide superior reliability—especially critical in competitive and demanding flight operations.
- What's the difference between the A6310 and other Spektrum servo models? — The A6310 is positioned in Spektrum's ultra-torque, high-speed servo category, combining 350 oz-in of torque with a 0.10 second transit speed. It uses brushless motor technology, metal gears, and dual ball bearings for premium performance. Other Spektrum servos in their lineup may offer different torque and speed combinations or use conventional brushed motors—the A6310 represents their premium brushless solution for the most demanding applications.
- Can I use the A6310 in marine or water-exposed applications? — The A6310 is designed as an aircraft servo for aerobatic and sport aircraft. While it features quality construction and protection circuits, it is not specifically rated as waterproof or sealed for marine environments. For water-exposed RC applications, you would need a servo specifically designed and tested for marine duty.
- What type of aircraft is the A6310 designed for? — The A6310 is engineered for 60–120cc aerobatic and sport aircraft as well as giant-scale platforms. It's designed for high-performance applications where control authority and response speed are critical, including 3D aerobatic flying, precision aerobatics, and demanding sport flying where servo reliability and torque output directly impact aircraft performance.
- Does the A6310 include failsafe programming? — Yes, the A6310 includes failsafe hold capability, meaning that if your RC signal is lost during flight, the servo will retain and hold the last known position. This helps maintain control surface alignment and contributes to safer flight termination when signal is lost.
- What's the significance of the metal gear train and ball bearing construction? — Metal gears are more durable and wear-resistant than plastic alternatives, and the tightly meshed design provides virtually slop-free operation—critical for precision aerobatic control where any gear backlash would translate into imprecise control input response. Dual ball bearings ensure smooth, low-friction rotation of the servo output shaft, contributing to the servo's overall smoothness and long-term reliability even under sustained high-load operation.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the SPM A6310 Ultra Torque High Speed Metal BL HV Servo P-SPMSA6310 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
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.
