- Product Name: 13g Sub-Micro Metal Gear Servo
- Manufacturer: Spektrum
- Model Number: P-SPMSA392
- Servo Type: Digital
- Servo Size: Sub-Micro
- Weight: 13g
- Operating Voltage: 4.8V - 6.0V
- Gear Type: Metal
- Shaft Diameter: 4.6mm
- Connector Type: Servo
- Programmable: No
- Water Resistant: No
Overview
The Spektrum SPM 13g Sub-Micro Metal Gear Servo P-SPMSA392 is a precision digital servo engineered for demanding RC applications where reliable, accurate control is essential. This compact servo is purpose-built for sub-micro scale RC models, delivering the durability and performance that serious RC enthusiasts demand. Whether you're building a high-performance RC aircraft, a detailed scale model, or upgrading an existing setup, this metal gear servo provides the responsiveness and longevity required for competitive flying and precision manoeuvres.
Spektrum servos are renowned across the RC community for their engineering excellence and dependable operation. The P-SPMSA392 combines a robust metal gear transmission with digital control technology, making it ideal for UK RC hobbyists who refuse to compromise on quality. This servo operates within the standard 4.8-6.0V operating voltage range, offering broad compatibility with most modern RC receiver systems and power configurations used in the UK RC market.
The 13-gram weight classification makes this servo perfectly proportioned for sub-micro aircraft and compact RC models where every gram matters. The metal gear construction ensures durability through thousands of cycles, whether you're flying casually at your local flying field or competing in serious RC competitions. With its proven track record and Spektrum's reputation for excellence, this servo is a go-to choice for modellers seeking reliability without compromise.
Key Features
- Digital Control Technology — Digital servos offer superior speed, accuracy and responsiveness compared to analogue alternatives, enabling precise control inputs that translate directly to your model's movements with minimal delay or drift.
- Metal Gear Transmission — The metal gear construction provides exceptional durability and strength, resisting wear from continuous operation and delivering consistent performance throughout the servo's lifespan, which is particularly important for high-frequency control applications.
- Sub-Micro Form Factor — At just 13 grams, this servo is compact and lightweight, making it ideal for scale models, micro RC aircraft and applications where weight distribution is critical to flight performance and handling characteristics.
- Standard Operating Voltage Range — Operating between 4.8V and 6.0V, this servo integrates seamlessly with most standard RC receiver and battery configurations, offering excellent compatibility across diverse RC setups and equipment combinations.
- Spektrum Reliability — Manufactured by Spektrum, a brand synonymous with quality and innovation in the RC industry, this servo benefits from rigorous quality control and proven engineering principles that have made Spektrum a trusted name among RC pilots and serious modellers.
Technical Performance
The SPM 13g Sub-Micro Metal Gear Servo represents the pinnacle of compact servo design, engineered to deliver exceptional performance in weight-sensitive applications. The metal gear transmission is the key differentiator, providing superior durability compared to plastic alternatives whilst maintaining the compact dimensions necessary for sub-micro installations. Digital servo technology ensures rapid response times and improved accuracy, giving pilots the precise control needed for acrobatic flying, smooth aerobatic sequences and demanding flight regimes. The 4.8-6.0V operating voltage range provides flexibility in power configuration, accommodating everything from standard 4.8V NiMH batteries to modern 5.0-6.0V LiPo configurations that are increasingly popular among UK RC enthusiasts. The servo's compact form factor—13 grams of total weight—makes it an excellent choice for ultra-lightweight aircraft designs where minimising mass is essential to achieving optimal flight characteristics. Whether you're building a competition-level RC aircraft, a detailed scale model, or upgrading an existing micro RC platform, this servo delivers the performance and durability expected from a Spektrum product. The metal gear construction ensures the servo will maintain consistent operation through thousands of flight hours, making it an economical long-term investment for serious RC pilots.
What's in the Box
- SPM 13g Sub-Micro Metal Gear Digital Servo
Frequently Asked Questions
- What is the difference between metal gear and plastic gear servos? — Metal gear servos like the P-SPMSA392 offer significantly superior durability and strength compared to plastic gear alternatives. Metal gears resist wear and can handle higher loads and faster operating frequencies without degradation. For serious RC applications, especially in competition or high-demand flying, metal gears provide better longevity and more consistent performance over time, making them worth the investment despite their slightly higher cost.
- Is this servo suitable for beginner RC pilots? — Whilst this servo is technically suitable for any skill level, it's particularly ideal for pilots who already have some experience and are looking to upgrade their RC setup with higher-quality components. Beginners may find equally effective (and less expensive) options available, but if you're committed to serious RC flying and want components that will last years, this Spektrum servo is an excellent choice.
- What battery voltage does this servo require? — The SPM 13g Sub-Micro Metal Gear Servo operates optimally within the 4.8V to 6.0V range. This makes it compatible with standard 4-cell NiMH battery packs (which deliver approximately 4.8V nominal) and modern single-cell LiPo batteries (which provide 5.0-6.0V depending on charge level). Most RC receivers and power systems used in UK RC applications fall within this voltage window, ensuring straightforward integration into your existing setup.
- What type of RC models is this servo suitable for? — The 13-gram weight and sub-micro form factor make this servo ideal for small-scale RC aircraft, micro aeroplanes, detailed scale models, and any RC application where compact size and minimal weight are priorities. The metal gear construction ensures it can handle the demands of acrobatic flying and precision manoeuvres without premature wear.
- Why choose Spektrum servos for my RC setup? — Spektrum has earned a sterling reputation throughout the RC community for engineering quality and reliability. Their servos undergo rigorous testing and quality control, ensuring consistent performance and durability. By choosing Spektrum, you're investing in a brand that's trusted by competitive pilots and serious RC enthusiasts throughout the UK and worldwide.
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 13g Sub-Micro Metal Gear Servo P-SPMSA392 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.
