To Next PageTo Next Page
Need help?Do you have a question about the Walkera Dragonfly 4 and is the answer not in the manual?
Explains the rotor blade state with no angle or bite on the air.
How collective pitch changes all blades simultaneously for vertical lift.
Details cyclic pitch for forward, backward, and sideways flight control.
Recommends Loctite 242 or Permatex medium blue for securing parts.
Highlights RTV silicone sealant and metric hex key sets for maintenance.
Covers pitch gauges, Xacto knives, screwdrivers, and multimeters.
Discusses switches, soldering guns, battery chargers, and timers.
Includes lazy susan turntables and training kit materials.
Suggests flight simulators for practicing maneuvers and controls.
Guidelines for safely storing and transporting Li-Ion or Li-Po batteries.
Precautions for handling Li-Po batteries to prevent damage or hazards.
Instructions for building a fire-proof 'Battery Bunker' for LiPo storage.
Charging parameters, rules, and time calculations for Li-Po packs.
Details the contents of the helicopter package and initial observations.
Default USA factory settings for the rear dip switch bank on the transmitter.
Mode 1 35MHz settings for Europe, including simulator use.
Advice on antenna wire protection and performing a radio range check.
Explanation of PLT and PZT knobs for blade pitch adjustment.
Warning and instructions for the Flight Mode switch to prevent accidents.
Recommendation to lock the Flight Mode switch to prevent accidental changes.
Detailed instructions for balancing the flybar and paddles for stability.
Ideal procedure to check CG by suspending the helicopter.
Instructions on applying Loctite to setscrews for the mainshaft and drive gear.
Step-by-step guide to tracking blades for smooth flight.
Adjusting blade pitch for optimal liftoff and hover performance.
Explains how main rotor torque affects tail rotor and the need for compensation.
Details on using the transmitter's tail compensator and mixer functions.
Discussion on the gearbox as a weak spot and potential alternatives.
Setting gyro sensitivity and gain for stable hover and flight.
Modifying gyro placement and tail blade holder orientation for CG balance.
A fix for tail rotor gearbox misalignment caused by vibration or impact.
A comprehensive checklist for ensuring the helicopter is ready for flight.
Criteria for selecting an ideal and safe location for helicopter operation.
Techniques for trimming the swashplate for stable hover without drift.
Advice on thumb flying, orientation, and practicing basic maneuvers.
Inspecting the tail rotor, gearbox, and boom for damage.
Checking head linkages, flybar, and main blades for bends or damage.
Checking Li-Po battery for potential damage or swelling after a crash.
Discusses common modifications and essential upgrades for the DF#4.
Guide to unpacking the helicopter, radio, and accessories.
Step-by-step guide to removing the main rotor head for preparation.
Procedure for removing the tail rotor and adding a heatsink.
Techniques for enhancing tail motor heat dissipation using fingers or grease.
Adding a setscrew to lock the tail rotor at 90° to the mainshaft.
Adding a metal clip to the head to prevent flexing and improve control.
Essential modification for swashplates with a brass ball for precise control.
Choosing between short and long linkage balls for learning and flight sensitivity.
Making a spacer from tubing to fit on the C locking ring.
Procedure to correct main gear wobble by adjusting motor position and screws.
Trimming main blades or adding tape to balance the head assembly.
Ensuring flybar and paddles are aligned to each other and the control frame.
Final steps for head reassembly and blade tracking for stability.
Adding a mod for improved forward flight control and stability.
Procedure for pulling the Jesus Pin and unclipping swashplate linkages.
Adjusting the Proportional Mix screw for hover stability and nose drift.
Adjusting the gyro screw to achieve a stable hover with minimal tail wiggle.
Recommendations for wooden blades and heat sinks for improved performance.
Overall assessment of setup ease and hover stability compared to other models.
Discussion on main drive gear wear and importance of proper backlash.
Ensuring battery security and checking main shaft straightness after crashes.
General| Brand | Walkera |
|---|---|
| Model | Dragonfly 4 |
| Flight Time | 8-12 minutes |
| Weight | 43g (without battery) |
| Battery | 3.7V 350mAh Li-Po |
| Camera | No |
| Channels | 4 Channels |
