Overview
The Hobbywing Skywalker 2316SL 1250KV brushless outrunner motor represents a significant step forward in fixed-wing RC aircraft propulsion. This first-generation Skywalker motor brings RC hobby pilots with fixed-wing models a whole new flying experience, whether you're flying scale aircraft, racing drones, or high-performance sailplanes. The motor is also an ideal complement to the already established Skywalker ESC range, delivering approximately 10% more output power than comparable motors with similar specifications, making it an excellent choice for UK RC enthusiasts looking to upgrade their existing setups or build a new high-performance aircraft.
What sets the Skywalker 2316SL apart from competing brushless RC motors is its carefully engineered design that balances power output, thermal management, and mechanical reliability. The 1250KV rating offers a perfect middle ground for versatile flying applications, suitable for pilots who want responsive performance without excessive motor heating. Whether you're a weekend flyer exploring different aircraft configurations or a more experienced RC pilot seeking precision and consistency, this motor delivers the performance and dependability you need for extended flying sessions.
Constructed with premium materials and precision engineering throughout, the Skywalker 2316SL reflects Hobbywing's commitment to quality. Every component, from the stator to the rotor assembly, has been selected and manufactured to exacting standards. The motor's compact yet substantial design (28.8mm diameter, 50mm length, 79g weight) makes it suitable for a wide range of fixed-wing aircraft platforms whilst remaining light enough not to compromise flight characteristics or battery endurance.
Key Features
- Premium N48 Magnet Design — The motor is equipped with high-strength N48 arc magnetic steel magnets that provide maximum torque output across the entire RPM range, ensuring consistent power delivery throughout your flight and enabling aggressive throttle response when needed.
- Special Propeller Attachment System — The Skywalker aircraft motors feature a special propeller attachment that ensures overall higher torque transmission, reducing slippage and vibration whilst allowing you to take full advantage of the motor's power output with better mechanical efficiency.
- Advanced Rotor Design for Smooth Operation — The rotor has been designed with multi-anti-loosening features, including copper pads, retainer springs, bushings and set screws on the rotor shaft, which work together to noticeably reduce potential motor vibrations and ensure smoother, more stable operation throughout your entire flight envelope.
- Exceptional Heat Dissipation Architecture — A generous hollow cavity combined with the self-draining structure of the top cover significantly increases cooling performance and airflow characteristics, meaning the motor stays cooler during sustained high-power flight and extends the lifespan of internal components considerably.
- Premium JNEH1200 Silicon Steel Construction — The stator uses top-branded JNEH1200 silicon steel sheets at 0.2mm thickness, which provides lower iron loss and more efficient energy conversion, resulting in better power-to-weight ratio and reduced heat generation compared to standard materials.
- High-Temperature Enameled Wire — The stator coil windings use 180°C high-temperature resistant enameled wire that can handle continuous high-load operation without degradation, enhancing the motor's overall reliability and thermal resilience during intensive flights.
- Precision Dynamic Balance Technology — The rotor undergoes excellent production and assembly dynamic balance procedures utilising high-quality bearings (684ZZ specification) and high-precision CNC machining, delivering extremely low dynamic imbalance that eliminates vibration and provides the smoothest possible operation.
- 18AWG Silicone Cable with Flexible Outlet — The motor comes fitted with a 100mm length of flexible silicone cable that is significantly softer and easier to route than traditional straight outlet wiring, simplifying integration into your aircraft's fuselage and reducing installation stress on solder joints.
- Ideal Skywalker ESC Compatibility — Designed as a perfect complement to the Skywalker ESC product range, the 2316SL motor offers seamless integration with Skywalker V2 speed controllers, creating a cohesive propulsion system optimised for fixed-wing performance.
- Brushless Sensorless Operation — As a brushless sensorless motor, the 2316SL eliminates the need for sensor wiring, simplifying installation and reducing potential failure points whilst delivering the reliable, maintenance-free operation that modern RC pilots expect.
Technical Performance
The Hobbywing Skywalker 2316SL 1250KV motor delivers impressive technical specifications that make it suitable for a diverse range of fixed-wing RC applications. With a KV rating of 1250, this motor will produce approximately 1250 RPM per volt applied, making it ideal for mid-range propeller sizes on 3-cell and 4-cell LiPo batteries. The motor's no-load current of 1.7A at 14.8V indicates excellent electrical efficiency, meaning less power is wasted as heat when the motor is spinning freely without propeller load. The internal resistance of just 38.5 milliohms is remarkably low, contributing to efficient power transfer and reduced voltage sag during high-current flight manoeuvres. The motor utilises a 12-slot, 14-pole (12N14P) configuration, a proven design that delivers smooth power delivery and excellent torque characteristics across the entire throttle range. Maximum continuous current is rated at 41 amps for 54 seconds, with peak power output of 615 watts during this burst period, providing ample power for aggressive aerobatic flying, sustained climbs, or fast-paced forward flight. The motor's compact dimensions of 28.8mm diameter and 50mm length, combined with its featherweight 79-gram mass, make it ideal for weight-critical applications where minimising airframe inertia directly translates to superior handling and extended flight times. The 4mm diameter shaft is precision-ground and compatible with standard aircraft propeller adapters, whilst the 684ZZ sealed ball bearings ensure smooth, long-lasting rotation with minimal friction. Built to work perfectly with recommended Skywalker V2 30A to 50A ESCs, the motor will handle the latest generation of programmable electronic speed controllers that offer features like telemetry integration, governor modes, and adjustable throttle curves.
What's in the Box
- 1 x Hobbywing Skywalker 2316SL 1250KV brushless outrunner motor with pre-soldered 18AWG silicone phase cables
- 1 x Motor manual and documentation
What You Need to Complete
- Electronic Speed Controller (ESC) — Recommended: Hobbywing Skywalker V2 30A to 50A rated for your chosen battery configuration
- LiPo Battery — 3S or 4S cell LiPo battery pack appropriate for your aircraft's weight and performance requirements
- Battery Connector and Harness — XT60, EC3, or similar connector matched to your ESC and battery
- Propeller — Suitable fixed-pitch or variable-pitch propeller matched to your aircraft type and desired flight characteristics (see recommended propeller sizes below)
- Aircraft Airframe — Complete fixed-wing aircraft suitable for mid-range brushless power
- Charger — Multi-cell LiPo charger capable of safely charging your chosen battery configuration
Propeller Compatibility and Recommendations
The Hobbywing Skywalker 2316SL 1250KV motor is compatible with a carefully selected range of propellers optimised for different battery voltages and flight styles. For 3-cell LiPo operation, the motor performs excellently with 9x4.5E, 10x5E, and 10x6E propellers, offering a balance between takeoff performance and top-end speed. When flying on 4-cell LiPo batteries, use 7x6E or 8x6E propellers to maintain optimal load characteristics and prevent excessive current draw. These propeller recommendations have been tested and verified by Hobbywing engineers to deliver peak efficiency and reliability whilst staying within the motor's thermal and mechanical limits. Always verify propeller sizing for your specific aircraft before flight, as incorrect propeller selection can cause overheating, reduced flight time, and potential damage.
Mounting and Installation
Installation of the Skywalker 2316SL motor is straightforward and designed for builders of all skill levels. The motor features standard mounting provisions with M2.5 threads on the clip mounting hole (12mm diameter, 3 mounting points) and M3 threads on the base mounting holes (available in both 16mm and 19mm diameter configurations depending on your airframe design). These standardised mounting interfaces ensure compatibility with aircraft from various manufacturers and custom-built designs. The 4mm diameter shaft accepts standard RC aircraft propeller adapters, and the 100mm length of pre-installed silicone cable provides adequate wiring length for most fuselage configurations. Cable routing should avoid sharp edges and excessive bending to prevent insulation damage. When soldering motor wires to your ESC, use rosin-core solder and quality connections, as poor electrical contact can result in voltage loss and heat generation.
Frequently Asked Questions
- What is the difference between the Skywalker 2316SL 1250KV and other KV ratings in the 2316 series? — Hobbywing offers the 2316SL in three different KV ratings: 980KV for lower speed, higher torque applications with larger propellers; 1250KV for balanced mid-range performance; and 1400KV for higher speed applications with smaller propellers. The 1250KV variant represents the most versatile option for general fixed-wing flying, offering good balance between power, efficiency, and propeller options. Lower KV motors (980KV) spin slower but provide more torque, making them suitable for larger, heavier aircraft or cargo-carrying models. Higher KV motors (1400KV) spin faster with less torque, ideal for lightweight aerobatic aircraft or speed-focused builds. Choose based on your aircraft's weight, desired flight characteristics, and the propeller sizes you wish to use.
- Is the Hobbywing Skywalker 2316SL suitable for beginner RC pilots? — Yes, absolutely. The 2316SL is an excellent choice for pilots transitioning from brushed motors or smaller brushless setups to more powerful equipment. The motor's sensorless design requires no additional sensor wiring, making installation simpler than some competing motors. The recommended Skywalker V2 ESC range includes comprehensive programming options and failsafe features that help protect your motor investment. Beginners should start with the recommended 3S LiPo configuration and practice with gentle throttle inputs before exploring more aggressive flying styles. As with any RC aircraft, proper training, suitable flying locations, and appropriate insurance are essential regardless of equipment choice.
- What battery does this motor need and how long will it fly? — The Skywalker 2316SL 1250KV is compatible with 3-cell and 4-cell lithium polymer (LiPo) batteries. A 3S LiPo battery (11.1V nominal) will provide lower top speed but better efficiency and longer flight times, making it ideal for cruising and scale flying. A 4S LiPo battery (14.8V nominal) will produce significantly higher power output and top speed, though with slightly reduced flight duration and higher current draw. Typical flight times range from 15 to 25 minutes depending on aircraft weight, flying style, battery capacity, and propeller choice. Aggressive aerobatic flying with sustained high throttle will reduce flight time significantly compared to gentle cruising. Always monitor motor temperature during flights and allow adequate cooling periods between flights to extend motor lifespan.
- What ESC should I use with this motor? — Hobbywing specifically recommends the Skywalker V2 series ESCs rated between 30A and 50A, depending on your chosen propeller and battery configuration. The 30A variant suits lighter aircraft or smaller propellers, whilst the 50A variant is needed if you're using larger propellers or heavier aircraft that draw peak currents in the 40-50 amp range. Using an ESC with insufficient current rating will cause voltage sag, heating, and potential shutdown during high-load flight. Conversely, oversizing the ESC wastes weight and space without providing additional benefit. Consult the detailed load performance charts on the Hobbywing manufacturer website to determine the exact current draw for your chosen propeller, then select an ESC with a rated continuous current exceeding that figure by at least 20%.
- How does the Skywalker 2316SL compare to the 2320 variant? — The Skywalker 2320SL is a physically larger motor (54mm length versus 50mm) offering slightly higher displacement and capable of handling larger propellers and heavier aircraft. The 2320 is available in 860KV, 1100KV, and 1250KV variants. The 2316SL 1250KV and the 2320SL 1250KV both share the same KV rating but the 2320 offers higher maximum continuous power (740W versus 615W) and higher maximum current capability (50A versus 41A), making it better suited to heavier aircraft or longer endurance flights. The 2316 is more compact and lighter (79g versus 92g for the 2320), making it ideal for weight-critical applications like lightweight sailplanes, speed flyers, or aerobatic models. Choose based on your aircraft's weight specification and desired performance characteristics.
- What makes the Skywalker 2316SL approximately 10% more powerful than competing motors? — This performance advantage comes from several design improvements: the special propeller attachment system ensures better torque transmission with less mechanical loss; the N48 magnets provide maximum magnetic strength; the precision rotor balance reduces vibration and allows the rotor to spin more efficiently; and the advanced stator design using JNEH1200 silicon steel minimises iron losses. These improvements combine to deliver approximately 10% higher maximum output power (615W) compared to similarly-sized competing motors from other manufacturers, translating to better acceleration, climb rate, and sustained performance during high-power flight manoeuvres.
- How should I maintain the Skywalker 2316SL motor during the season? — Brushless motors require minimal maintenance compared to brushed alternatives. After each flying session, allow the motor to cool naturally without forcing air through it prematurely. Periodically inspect the motor shaft for debris or damage, and check that the propeller adapter is secure. Avoid exposing the motor to water, sand, or extreme dust, as these can damage the sealed bearings or corrode electrical connections. If the motor becomes wet, allow it to dry completely before flying again. Every 20-30 flight hours, you can check that the rotor spins freely by hand (with the ESC disconnected for safety) and listen for any unusual grinding sounds that might indicate bearing wear. If you notice a decrease in performance, increased heating, or unusual vibration, it may be time to have the motor serviced by an authorised dealer.
- Will this motor work with my existing Skywalker ESC? — The Skywalker 2316SL 1250KV is specifically designed as a complement to Hobbywing's established Skywalker ESC range, and it works perfectly with the Skywalker V2 30A to 50A variants. If you have an older generation Skywalker ESC, compatibility depends on the specific model and firmware version; contact Hobbywing technical support for clarification. The motor's standard three-phase wiring and brushless sensorless design means it's also compatible with most other quality ESCs in the 40-50A continuous current range from other manufacturers, though you won't benefit from Hobbywing's tuned firmware optimisations developed specifically for the Skywalker product family.
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 HOBBYWING SKYWALKER 2316SL 1250KV BLK G1 OUTRUNNER MOTOR HW30415051 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.
- Product Type: Brushless Sensorless Outrunner Motor
- Brand: Hobbywing
- Model Number: HW30415051
- Motor Series: Skywalker 2316SL
- KV Rating: 1250KV
- Colour: Black
- Motor Diameter: 28.8mm
- Motor Length: 50mm
- Motor Weight: 79g
- Shaft Diameter: 4mm
- Stator Slots: 12
- Rotor Poles: 14
- Configuration: 12N14P
- Magnet Type: N48 arc magnetic steel
- No-Load Current: 1.7A at 14.8V
- Internal Resistance: 38.5 milliohms
- Maximum Continuous Current: 41A for 54 seconds
- Maximum Continuous Power: 615W for 54 seconds
- Recommended Battery: 3-4S LiPo
- Battery Voltage: 11.1V to 14.8V nominal
- Bearing Model: 684ZZ (D9 x d4 x 4mm)
- Phase Cable: 18AWG silicone wire
- Phase Cable Length: 100mm
- Stator Material: JNEH1200 silicon steel sheet 0.2mm thickness
- Enameled Wire: 180°C high-temperature resistant
- Rotor Design: Multi-anti-loosening with copper pad, retainer spring, bushing and set screw
- Cooling System: Hollow cavity design with self-draining top cover
- Dynamic Balance: High-precision CNC machined with high-quality bearings
- Propeller Mounting Hole (3S Configuration): 9x4.5E, 10x5E, 10x6E
- Propeller Mounting Hole (4S Configuration): 7x6E, 8x6E
- Clip Mounting Holes: D 12mm, 3 x M2.5 threads
- Base Mounting Holes: D 16mm or D 19mm, 2 x M3 threads
- Recommended ESC: Hobbywing Skywalker V2 30A-50A
- Included in Package: 1 x Skywalker 2316SL 1250KV motor with phase cables
- Included Documentation: 1 x Motor manual
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