PRKVX3150

Overview

The FMS PREDATOR 2840-KV3150 brushless motor is a high-performance component designed for RC aircraft and planes that demand reliable power and consistent thrust delivery. This 2840 brushless motor combines precision engineering with proven FMS quality to give RC pilots and enthusiasts the edge they need for both recreational flying and more demanding aerial applications. Whether you're building a custom RC plane UK setup or upgrading an existing airframe, this brushless motor offers the performance characteristics needed for smooth, responsive flight characteristics across a wide range of flying conditions.

Built to FMS's exacting standards, the 2840-KV3150 is engineered to deliver stable power output with minimal vibration, ensuring your RC aircraft maintains excellent control authority and predictable handling. The 3150 KV rating provides a balanced operating window suitable for medium-sized RC planes, making this motor an excellent choice for modellers seeking reliable performance without excessive current draw or battery strain. This is a genuine FMS component manufactured to strict quality control standards, backed by FMS's reputation for producing some of the most dependable RC aircraft motors in the hobby.

RC Model Shop stocks the FMS PREDATOR 2840-KV3150 as part of our comprehensive range of brushless motors and RC aircraft components. This motor represents genuine OEM parts availability for FMS aircraft owners across the UK, ensuring you can source authentic replacement and upgrade components with complete confidence in compatibility and performance.

Key Features

• 2840 Motor Size — The 2840 size classification indicates a compact brushless motor design optimised for RC aircraft applications, providing excellent power-to-weight ratio that minimises added mass to your airframe while delivering sufficient thrust for reliable flight performance.
• 3150 KV Rating — A KV rating of 3150 means the motor will turn approximately 3150 revolutions per minute per volt of input power, which is specifically tuned for medium-sized RC planes and ensures efficient operation within sensible current ranges when paired with appropriate propeller selections.
• Brushless Motor Technology — Brushless motors eliminate the wear and maintenance requirements of traditional brushed designs, delivering longer operational lifespan, superior reliability, and more consistent power delivery throughout extended flying sessions, making them the preferred choice for serious RC aircraft enthusiasts.
• FMS Quality Engineering — This motor benefits from FMS's extensive experience in RC aircraft design and manufacturing, incorporating precision-wound stators, high-grade magnetic materials, and tight manufacturing tolerances that ensure smooth operation and reliable performance flight after flight.

Technical Performance

The FMS PREDATOR 2840-KV3150 brushless motor represents a thoughtfully engineered component for RC aircraft applications requiring balanced power delivery and operational efficiency. The 2840 frame size provides a compact profile suitable for aircraft designs where weight and space are critical considerations, whilst the 3150 KV rating delivers the RPM characteristics needed for propeller-driven flight without excessive electrical current draw that would stress battery systems or ESCs. Brushless motor technology ensures this component operates with minimal mechanical wear, vibration, and maintenance compared to brushed alternatives, translating to longer operational life and more predictable flight characteristics. The motor's construction incorporates quality materials and precision manufacturing methods typical of FMS's product range, ensuring consistent performance and reliability. When properly matched with an appropriate ESC, battery system (typically 2S or 3S LiPo configurations), and correctly-sized propeller, this motor will deliver the smooth, responsive power characteristics essential for enjoyable and reliable RC aircraft operation. The brushless design also means you'll experience better efficiency, less electrical noise, and improved overall flight smoothness compared to brushed motor alternatives.

What's in the Box

• FMS PREDATOR 2840-KV3150 Brushless Motor

Frequently Asked Questions

• Is the FMS 2840-KV3150 motor suitable for beginners? — Yes, this motor is suitable for intermediate to experienced RC aircraft builders and pilots. Beginners should ensure they pair it with an appropriate ESC, battery, and propeller combination for their specific aircraft, ideally with guidance from experienced modellers or detailed build documentation. FMS aircraft kits provide detailed specifications for compatible components.
• What KV rating does this motor have? — The FMS PREDATOR 2840-KV3150 features a 3150 KV rating, meaning it will produce approximately 3150 RPM per volt of input. This KV range is optimised for medium-sized RC aircraft and ensures efficient operation without excessive power consumption when paired with suitable propeller selections.
• What battery does this brushless motor need? — The 2840-KV3150 is typically compatible with 2S and 3S LiPo battery systems, though the exact battery specification depends on your specific aircraft design, propeller choice, and desired power output. Always consult your aircraft's documentation or building plan to determine the correct battery voltage and capacity for your setup.
• What size propeller should I use with this motor? — Propeller size depends on your aircraft design, desired performance characteristics, and the current rating of your ESC. The 3150 KV rating is tuned to work efficiently with medium-sized propellers commonly fitted to general RC aircraft, but you must refer to your specific aircraft documentation or building guide for exact propeller specifications.
• Can I use this motor as a replacement? — Yes, if your FMS aircraft originally featured a 2840-KV3150 motor, this is a genuine OEM replacement component. Always verify motor specifications with your original aircraft documentation before ordering to ensure full compatibility with your ESC, battery, and propeller setup.

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 FMS PREDATOR 2840-KV3150 MOTOR PRKVX3150 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.