Model Aircraft TRIZ Cases
- Motor Hub Skid Surface for Propeller Strike Shaft Protection
A hub-mounted skid surface contacts the motor casing during propeller strikes to absorb bending moments and protect the shaft and engine compartment.
- Motor Hub Skid Surface for Propeller Strike Load Transfer
A hub skid surface contacts the motor casing during propeller strikes, transferring bending moments away from the shaft to limit engine compartment damage.
- Multicopter Failure Control Using Remaining Effectors in Flight
When a rotor effector fails, the controller estimates body-axis orientation and angular velocity to keep a multicopter flying with remaining effectors.
- Gyro Steering Control With Direction Switching for Reverse Motion
A gyro controller switches control direction between forward and reverse travel, making posture control easier and more stable during steering.
- Autonomous Drone Flight Paths With Random Regional Navigation
Onboard processing generates random or pseudo-random flight paths, letting a drone patrol a defined region without user input.
- UAV Neutralization Control for Low-Harm Crowd Subdual
Aggression-scoring UAVs select sprays or sounds by exception conditions to subdue hostile individuals while reducing harm to bystanders.
- Multicopter Flight Control After Rotor or Effector Failure
When a rotor or effector fails, the controller estimates body-axis orientation and angular velocity to keep a multicopter stable for descent and landing.
- RC Helicopter Gyro Sensitivity Control Across Rotor RPM Changes
Main rotor RPM feedback corrects gyro sensitivity by flight state, reducing vibration and improving RC helicopter stability during hover and landing.
- Lighter-Than-Air Drone Propulsion for Stable Altitude Control
Perpendicular air conduits and motorized propellers stabilize a buoyant drone, reducing constant motor use and extending flight time.
- Self-Righting RC Helicopter Frame Using Offset Weight Distribution
An offset weighted frame and top protrusion let an inverted RC helicopter roll back upright without tail-rotor complexity or manual reset.
- Foldable UAV Wing Support Structure for Compact Storage
A single rotation support lets the fixed wing fold between flight and storage states, cutting parts, structure complexity, and storage volume.
- Self-Righting Flying Toy with Asymmetric Battery and Louvers
An asymmetric battery placement and louver design enable a flying toy to automatically right itself after impact, preventing ceiling entrapment.
- Quick Release Propeller Blades With Curved Slot Locking
Curved slot locking prevents blade separation during flight while allowing manual removal without tools by rotating to a threshold angle.
- Rotary Aircraft With Interactive Light Bar Projection
A rotary aircraft integrates a light bar on its cover to project preset patterns, creating an interactive flight toy experience.
- Ortho-image Creation for Obstructed Road Surfaces
Dual-altitude UAV photography captures road surfaces from above and below obstacles to generate corrected ortho-images.
- UAV Kit Base Unit with Stand-by Connector for One-Hand Operation
A compact UAV kit base unit integrates charging and data transfer via a stand-by connector.
- Nose Cone Detachable Torque Arm Snap Connection
Resilient torque arms deflect to snap onto nose cone receivers, eliminating loose connectors and reducing maintenance downtime.