Overview
The Hobbywing PLATINUM 2603SL Brushless Motor is an ultra-light 18g power system built for 80g–300g F3P indoor competition aircraft and other lightweight fixed-wing models with strict weight limits. With a compact Φ30 × H16.2 mm motor size, 12-slot/14-pole design, and a smooth, linear throttle response when paired with the Platinum 18A V5 F3P ESC, it is designed to help pilots execute precise, high-difficulty aerobatic maneuvers. In the mid-to-rear load range, motor efficiency and maximum thrust increase by over 5% versus similar-spec motors, reducing “power anxiety” and improving competition performance.
Key Features
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Ultra-light design: motor weight 18g (including wires) for weight-critical F3P builds
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High-performance electromagnetic materials:
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0.2mm silicon steel laminations for strong torque and efficiency
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220°C high-temperature enameled wire for reliability under load
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N52SH high-strength arc magnets for high torque density
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Multi-strand winding: improves slot fill, helping reduce operating temperature at the same power output
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Low vibration, stable flight: rotor dynamic balance standard ≤ 5 mg for smoother control and cleaner aerobatics
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Efficient cooling + weight reduction: large hollow rotor frame and stator base design supports continuous heat dissipation during aggressive flights
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Fast prop installation: rotor frame integrates a propeller mounting structure for quick assembly/disassembly
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Flexible mounting: elliptical mounting-hole design supports 4 × Φ2.1 @ D33 and is intended to fit common F3P airframes
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Durable hardware: 630ZZ bearings, titanium alloy shaft material, and 500V AC insulation withstand test
Specifications (2603SL 1480KV vs 2603SL 1800KV)
Mechanical
| Parameter | Platinum 2603SL 1480KV | Platinum 2603SL 1800KV |
|---|---|---|
| Motor size | Φ30 × H16.2 mm | Φ30 × H16.2 mm |
| Stator size | Φ26 × H2.6 mm | Φ26 × H2.6 mm |
| Slots / Poles | 12 slots / 14 poles | 12 slots / 14 poles |
| Rotor dynamic balance standard | ≤ 5 mg | ≤ 5 mg |
| Bearing | 630ZZ | 630ZZ |
| Output shaft size | Φ5.5 × t2.4 mm | Φ5.5 × t2.4 mm |
| Shaft material | Titanium alloy | Titanium alloy |
| Motor mounting holes | 4 × Φ2.1 @ D33 | 4 × Φ2.1 @ D33 |
| Lead type | Enameled wire direct leads | Enameled wire direct leads |
| Lead length | 45 mm | 45 mm |
| Motor weight (incl. wires) | 18 g | 18 g |
Electrical & Performance
| Parameter | Platinum 2603SL 1480KV | Platinum 2603SL 1800KV |
|---|---|---|
| Rated battery | 3S LiPo | 2S LiPo |
| No-load current | 0.5 A @ 12 V | 0.5 A @ 8 V |
| Max current (ambient ≤ 25°C, non-enclosed) | 16 A / 34 s | 14 A / 42 s |
| Max power | 187 W / 34 s | 114 W / 42 s |
| Max thrust | 656 g | 526 g |
| Phase-to-phase resistance | 204 mΩ | 204 mΩ |
| Coil insulation test | 500V AC withstand | 500V AC withstand |
Recommended Setup
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ESC: Hobbywing Platinum 18A V5 F3P ESC
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Propellers: UP8338, TP8038
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Battery: 3S LiPo for 1480KV version; 2S LiPo for 1800KV version
Applications
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F3P indoor aerobatic / racing aircraft (80g–300g class)
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Lightweight fixed-wing aircraft where low weight, smooth throttle, and stable vibration performance are critical
Package Notes
This listing is for the Hobbywing PLATINUM 2603SL brushless motor (KV option as selected). Propeller, ESC, and battery are typically selected separately unless explicitly included in your order.
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