RC Helicopter Tail Motor Failure FIX! 🚁 Blackhawk F-05 Repair (Step-by-Step Guide)

This video shows how to diagnose and fix a common RC helicopter problem — a failed tail motor causing uncontrolled spinning on takeoff. I walk through a full teardown and repair of the Kootai F-05 Blackhawk RC helicopter, replacing the brushed 0720 tail motor step-by-step. If your RC helicopter tail is not holding or the motor stops working, this fix will get you back in the air quickly. We also cover: • How to safely open the fuselage • Identifying internal components (flight controller, ESC, servos) • Proper wire routing and reassembly tips • Tail motor installation and securing • Gyro calibration after repair This issue is common with brushed tail motors after multiple flights, so having a spare motor on hand is highly recommended. 👉 Links to RC helicopter kit and replacement parts below: Kootai F05 RC Helicopter kit: Use my exclusive 15% discount code: 6677 Stirlingkit: https://bit.ly/4p3ZAav Spare parts: https://s.click.aliexpress.com/e/_c3n... https://s.click.aliexpress.com/e/_c4M... Chapters 0:00 Tail Motor Failure Demonstration 0:38 What’s Wrong with the Helicopter 1:14 Tail Motor Specs & Replacement Info 1:56 Disassembly – Removing Screws 3:40 Opening the Fuselage 5:02 Internal Components Explained (Anatomy) 6:50 Removing the Old Tail Motor 8:28 Installing the New Motor 10:05 Wiring & Placement Tips 12:00 Reassembly (Important Tips) 16:43 Testing the Repair 17:23 Gyro Calibration 18:01 First Takeoff After Fix 18:27 Final Thoughts & Lessons Learned 👉 Have you ever had your RC helicopter spin out like this? What fixed it for you — tail motor, gyro, or something else?