Brushless Fpv Motors R3115 640KV 3-6S Racing Drones 9inch 10Inch 11Inch RC Long Range Quadcopter

Description

Tracker 3115 640KV Brushless Fpv Motors – High-Efficiency Power for 9-11 inch FPV Long-Range Drones Product OverviewThe

Tracker 3115 640KV Brushless Fpv Motors is a precision-engineered powerplant designed for 9–11 inch FPV long-range and freestyle quadcopters. Part of the acclaimed Tracker series, this motor combines premium materials with advanced manufacturing to deliver exceptional efficiency, torque, and reliability for extended flights.

---

 Fpv Motors Key Features

• Optimized for 9–11″ Propellers – Perfect balance of thrust and efficiency for long-range cruising and cinematic flights.
• High-Quality Materials:
  • Stator: 0.2mm Kawasaki silicon steel laminations – reduced eddy current losses.
  • Rotor Magnets: N52H arc magnets – strong magnetic flux and high-temperature resistance.
  • Shaft: Titanium alloy hollow shaft – lightweight yet incredibly strong, with M5 propeller thread.
  • Bearings: Japanese NMB (11×5×5mm) – ultra-smooth rotation and extended lifespan.
  • Bell & Base Casing: CNC-machined 7075 aluminum – durable and lightweight.
• Efficient 12N14P Configuration – High torque and smooth power delivery.
• Lightweight Design – Only 110g (including 25cm silicone wires), ideal for weight-sensitive platforms.
• Versatile KV Options – Available in 640KV (for 9–11″ props) and 900KV (for smaller props) to suit different flying styles.

---

 Fpv Motors Technical Specifications

Parameter	Value
Brand	GTSKYTENRC
Series	Tracker
Model	3115 (Stator: 31mm diameter, 15mm height)
KV Options	640KV / 900KV
Motor Configuration	12N14P (12 slots, 14 poles)
Stator Material	0.2mm Kawasaki silicon steel
Rotor Magnets	N52H arc magnets
Bearings	Japanese NMB (11×5×5mm)
Shaft	Titanium alloy hollow shaft, M5 thread
Mounting Bolt Pattern	M3, 19×19mm
Bell & Base Material	CNC 7075 aluminum
Weight	110g (including 25cm silicone wires)
Wire Gauge & Length	18AWG, 25cm
Recommended Propeller Size	9″, 10″, 11″
Compatible ESC Rating	50A – 70A
Compatible Flight Controllers	F4, F7, KK, SpeedyBee F405/F722, etc.

---

 Fpv Motors Recommended Applications

• Drone Size: 9″, 10″, 11″ quadcopters
• Flying Style: Long-range FPV, cinematic cruising, freestyle
• Propeller Size: 9–11 inches
• ESC Requirement: 50A–70A (ensure headroom for peak loads)
• Battery Recommendation:
  • 640KV version: 4S–6S LiPo (optimized for 6S with 10–11″ props)
  • 900KV version: 4S–5S LiPo (for 9″ props)
    

---

KV Selection Guide

KV	Best Battery	Best Prop	Best For
640KV	4S–6S	10–11″	Long-range, efficiency-focused flights
900KV	4S–5S	9″	Freestyle, faster response

---

Package Includes

• 1 × GTSKYTENRC Tracker 3115 Motor (selected KV)
• 1 × Hardware kit (mounting screws, bullet connectors if applicable)

---

R3115-640KV – Maximum Efficiency for 10–11″ Long‑Range & Endurance UAVs Fpv Motors

Engineered specifically for 10–11″ traversal aircraft and long‑range FPV drones, the R3115-640KV prioritizes flight time and thermal efficiency. Its lower KV rating makes it the ideal choice for pilots who want to cruise for 20–30+ minutes on 6S Li‑ion packs without sacrificing thrust when needed.

Key advantages:

• Optimized for 10–11″ propellers – The 31×15mm stator combined with 640KV delivers high torque at low RPM, perfectly matching large‑diameter props for maximum aerodynamic efficiency.
• Lower KV = longer flight time – Compared to 900KV, the 640KV variant draws less current at cruise throttle, significantly extending flight endurance – ideal for Li‑ion long‑range setups (6S2P 21700, etc.).
• Efficient 12N14P magnetic architecture – Smooth, vibration‑free operation reduces noise and improves video quality for cinematic or survey missions.
• Low no‑load current (2.5A @ 25.2V) – Indicates excellent magnetic circuit efficiency, meaning less energy wasted as heat and more power translated into thrust.
• Reasonable internal resistance (60mΩ) – Balances copper loss with torque production, allowing sustained climbs without overheating – even on hot summer days.
• Robust construction for heavy payloads
  – 112g weight – Provides thermal mass for heat dissipation during extended climbs.
  – 37.5mm diameter & 33.6mm length – Fits most 10‑11″ frames.
  – Standard M5 prop shaft & 19×19mm mounting – Drop‑in compatibility with common props and full‑size frames.
• Wide voltage range (3‑6S) – While optimized for 6S, it runs happily on 4‑5S for lighter builds or slower cruising.

Recommended applications:

• 10‑11″ long‑range FPV quads (endurance focus, Li‑ion batteries)
• Surveying / mapping UAVs requiring 20+ minute flight times
• Heavy‑lift traversal aircraft (with 60‑70A ESC and 6S LiPo/Li‑ion)
• Cinema drones where smooth, efficient cruising is paramount

Recommended ESC: 50‑70A (e.g., BLS 60A / 80A / 100A for headroom)

R3115-640KV vs 900KV – which to choose?

• 640KV → Longer flight time, cooler electronics, best with 6S Li‑ion & 10‑11″ props
• 900KV → Snappier response, better for 5‑6S LiPo & 9‑10″ props or lighter 10‑11″ builds

For pure endurance on 10‑11″ frames, the R3115-640KV is the clear winner.

• Wide voltage range (3‑6S) – Flexible power options: 4S for moderate flying, 6S for peak efficiency or extra thrust when needed.

Fpv Motors Recommended applications:

• 10‑11″ long‑range FPV quads (Mark4, Apex XL, LR frames)
• Traversal / surveying UAVs requiring stable, efficient flight
• Heavy‑lift cinema drones (with appropriate ESC and battery)
• Endurance platforms using Li‑ion 6S packs (e.g., 21700 cells)

Recommended ESC: 50‑60A (e.g., BLHeli_S 50A/60A or BLS 60A)

If you need higher torque for 11″+ props or extreme efficiency, consider the 640KV version. For most 10‑11″ traversal builds, the R3115-900KV delivers the perfect balance of responsiveness and stamina.

Brushless Motor racker 3115  640KV For 9inch 10inch 11inch  RC FPV Racing Long Range Quadcopter Drone

Specifications
Series:  Tracker
KV: 640KV/900KV
Base casing: 7075
Stator: 0.2mm Kawasaki silicon steel
Configuration: 12N14P
Prop Adapter Shaft Thread: M5
Shaft: Titanium Alloy hollow shaft
Bolt Pattern: M3 (19X19mm)
Bearings: Japanese NMB 11mm X 5mm X 5 mm
Rotor: N52H arc magnets
Weight: 110g with 25cm SR wires
Wire AWG: 18AWG 25cm length
Bell cap: 7075

Applicable model: 9-inch 10-inch 11 inch drone
ESC:50A-55A-60A-65A-70A ESC
Propeller:9-inch 10-inch 11-inch  propeller

Flight control: F4/F7/KK/SpeedyBee F405 F722, etc