4130 FW Motor
The 4130 FW is designed for civilian mapping UAVs and long-endurance survey aircraft operating on 6S to 12S LiPo configurations. This documentation covers the 300 KV variant with detailed specifications and test data.
Key Features:
- Long Output Shaft: Matches common fixed-wing collet adapters
- Excellent Cruise Efficiency: Optimized for 40% to 50% load cruising
- Robust Bearings: Premium Single 696-ZZ Sealed bearings for ultra-smooth operation
- Lightweight design (400g) for agile performance
- High power density (up to 6.38 W/g maximum)
- 300 KV
300 KV - Specifications
Motor Specifications:
- KV Rating: 300 RPM/V
- Kt (Motor Torque Constant): 0.046 Nm/A @ 8327 RPM
- Weight: 400 g ± 2 g
- Max Thrust: 5,004g (with 14×8 CFRP_FP prop)
- Voltage Range: 44V – 50V (12S LiPo)
- Io (No Load Current @ 24V): 2.6A
- Max Continuous Current: 23A (180s)
- Max Continuous Power: 1134.3W (180s)
- Power Density: 2.83 W/g (Rated), 6.38 W/g (Maximum)
- Motor Diameter: Ø 50 mm
- Motor Length: 57.2 mm
- Shaft Diameter: Ø 6 mm
- Stator Poles: 12S
- Magnetic Poles: 14P
- Bearings: SINGLE 696-ZZ Sealed
- Inductance per phase (Winding Inductance): 0.182 (≈0.03) mH
- Resistance per phase (Rph): 0.183 (≈0.03) Ω
- Motor Mount Pattern @ 90°: 4 × M4 @ PCD Ø 30 mm, depth: 4 mm
- Compatible Propeller Size: 14" to 18"
- Propeller Mount Pattern: 4 × M3 @ PCD Ø 20 mm, depth: 8 mm
Test Data - 300 KV
14 x 8 CFRP_FP Propeller
Test Conditions:
- ESC: 80A 14S
- Battery: 2 × HWB - 22000 mAh 6S (12S Setup)
- Test Date: 02-01-2026
- Environmental Temp: 27°C
- Humidity: 47%
- Cross-winds: Mild
| PWM | Throttle % | Voltage (V) | Current (A) | RPM | Thrust (g) | Torque (N·m) | Power (W) | Efficiency (g/W) | Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 1300 | 30 | 50.26 | 1.22 | 2936 | 356 | 0.115 | 61.3 | 5.8 | 120°C (@70% 10 min Constant) |
| 1400 | 40 | 50.08 | 3.34 | 4364 | 829 | 0.256 | 167.3 | 5.0 | 120°C (@70% 10 min Constant) |
| 1500 | 50 | 49.88 | 6.79 | 5617 | 1404 | 0.440 | 338.7 | 4.2 | 120°C (@70% 10 min Constant) |
| 1600 | 60 | 49.60 | 13.34 | 7084 | 2303 | 0.726 | 661.6 | 3.5 | 120°C (@70% 10 min Constant) |
| 1700 | 70 | 49.04 | 23.13 | 8327 | 3262 | 1.075 | 1134.3 | 2.9 | 120°C (@70% 10 min Constant) |
| 1750 | 75 | 48.76 | 29.96 | 8897 | 3779 | 1.302 | 1460.8 | 2.6 | 150°C (Maximum) |
| 1800 | 80 | 48.39 | 36.64 | 9343 | 4227 | 1.501 | 1773.0 | 2.4 | 150°C (Maximum) |
| 1850 | 85 | 48.06 | 43.54 | 9834 | 4562 | 1.666 | 2092.5 | 2.2 | 150°C (Maximum) |
| 1900 | 90 | 47.55 | 53.69 | 10193 | 5004 | 1.949 | 2552.9 | 2.0 | 150°C (Maximum) |
Performance Summary:
- Best Efficiency: 14×8 CFRP_FP @ 30% throttle (5.8 g/W, 356g thrust)
- Maximum Thrust: 14×8 CFRP_FP @ 90% throttle (5,004g thrust, 2.0 g/W)
- Balanced Performance: 14×8 CFRP_FP @ 50% throttle (4.2 g/W, 1,404g thrust)
- Operating Temperature: 120-150°C depending on load
- Recommended Continuous: 70% throttle max for sustained flight
Recommended Applications - 300 KV
- Long-endurance mapping UAVs
- Civilian survey fixed-wing aircraft
- Long-range cruisers
Common Resources
2D CAD Drawing
The 2D CAD drawing provides detailed dimensions and mounting specifications for the 4130 FW motor.
Drawing Specifications:
- Motor Mount Pattern @ 90°: 4 × M4 @ PCD Ø 30 mm, depth: 4 mm
- Propeller Mount Pattern: 4 × M3 @ PCD Ø 20 mm, depth: 8 mm
- Motor Diameter: Ø 50 mm
- Motor Length: 57.2 mm
- Stick Out Shaft Diameter: Ø 6 mm
Note: All dimensions in millimeters (mm). Specifications and drawings may be revised without notice.
Recommended ESC & Propeller
Compatible ESCs
Recommended Configurations:
| ESC Rating | Application | Features |
|---|---|---|
| 40A | General purpose | Standard BLHeli_32 |
| 80A+ | High performance | Advanced telemetry, robust cooling |
ESC Requirements:
- Continuous rating: 40A minimum (80A recommended)
- Voltage support: 12S (44-50V) capable
- Protocol: DShot600 or higher recommended
- Features: Active braking, telemetry support
For detailed ESC specifications and compatibility, see ESC Overview.
Compatible Propellers
Tested Propeller Configurations:
| Propeller Size | Pitch | Application | Performance |
|---|---|---|---|
| 14×8 CFRP_FP | Medium | Balanced performance & efficiency | Excellent |
Propeller Selection Guidelines:
- Use 14" to 18" propellers for best balance of efficiency and thrust
- Always check for propeller clearance on your fixed-wing aircraft
- Ensure mounting bolts are fully secured before flight
For more propeller options, see Propeller Overview.
System Integration
Complete System Recommendations:
-
Efficiency Build (Long-range cruising)
- Motor: 4130 FW 300KV
- Propeller: 14×8 CFRP_FP
- ESC: 40A-60A Individual
- Battery: 12S Li-Ion or LiPo
- Expected Performance: Excellent cruising efficiency at lower throttle
-
Performance Build (Heavy mapping payloads)
- Motor: 4130 FW 300KV
- Propeller: 14×8 CFRP_FP
- ESC: 80A+
- Battery: 12S LiPo
- Expected Performance: High thrust bursts up to 5,004g per motor
Maintenance and Inspection
Pre-Flight Checks
Before every flight:
- Visual inspection for physical damage
- Propeller balance and condition check
- Mounting bolt security verification (M4 bolts)
- Locknut security on M3 shaft
- Brief spin test (listen for unusual sounds)
Periodic Maintenance Schedule
Every 10 Flight Hours:
- Re-torque mounting bolts to specification
- Check bearing smoothness (manual rotation)
- Clean motor exterior with compressed air
- Inspect propeller for wear or damage
Every 50 Flight Hours:
- Detailed bearing inspection
- Electrical connection integrity check
- Replace propeller if worn
Signs Requiring Immediate Inspection:
- Unusual vibration during operation
- Increased motor temperature (>120°C)
- Grinding or scraping sounds
- Reduced thrust output
- Propeller wobble
Bearing Replacement
Bearing Specifications:
- Type: Single 696-ZZ Sealed
- Service Interval: 100-150 flight hours (typical)
Signs of Bearing Wear:
- Grinding or rattling sounds
- Increased vibration
- Shaft play or wobble
- Difficulty rotating by hand
- Increased operating temperature
Safety Notes
⚠️ Important Safety Information
Operational Safety:
- Never run motor without propeller attached for extended periods
- Ensure proper cooling during operation
- Monitor motor temperature - do not exceed 150°C for sustained periods
- Inspect motor bearings regularly for wear
- Replace damaged propellers immediately
Electrical Safety:
- Verify correct ESC wiring before first power-up
- Use only 12S LiPo batteries (44-50V range)
- Do not exceed maximum continuous current (23A @ 180s)
- Ensure proper battery discharge rates (C-rating)
Installation Safety:
- Follow torque specifications exactly
- Never exceed maximum bolt depth (4mm for motor mount)
- Maintain adequate clearance to fuselage
- Use proper size mounting hardware (M4 for motor, M3 for propeller)
Emergency Procedures:
- If motor overheats (>150°C), land immediately
- If unusual vibration occurs, stop operation
- If motor makes grinding sounds, inspect bearings
Technical Support & Resources
Contact Information
- Technical Support: support@vectortechnics.com
- Phone Support: +918977744819 (Mon-Fri, 9AM-5PM IST)
Related Documentation
Next Steps:
- Review Installation Guide for mounting procedures
- Select compatible ESC from tested configurations
- Choose optimal propeller based on application
- Review Motor Overview for system integration
Document Information:
- Revision: 1.0
- Last Updated: August 2026
- Product Code: VT-4130FW-300KV
- Document ID: VT-DOC-4130FW-01
Note: Specifications and drawings may be revised without notice. Vector Technics assumes no liability for reliance on unverified data. All dimensions in millimeters (mm).