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- Category: Helicopter Performance, Stability, and Control (continued)
- Cant
- Pitch Range
- Number of Blades
- Solidity and Airfoil Section
- Tip Speed
- Diameter
- Direction of Rotation
- Location
- Hinge Offset
- Shaft Tilt
- Direction of Rotation
- Inertia
- Collective and Cyclic Pitch Ranges
- Airfoil Sections
- Taper
- Twist
- Number off Blades
- Tip Speed
- Disc Loading
- OUTLINE OF STEPS IN THE PRELIMINARY DESIGN PROCESS
- Preliminary Design
- Stability Map
- The Short-Period Motion
- Approximate Solutions for the Phugoid Mode
- The Yaw Mode in Hover
- What Routh’s Discriminant Tells Us
- Add Simplification
- Airframe Derivatives
- Routh’s Discriminant
- Multi-Degree-of-Freedom Systems
- Response to an External Force
- SPRING-WEIGHT-DAMPER SYSTEM
- Stability and Control Analysis
- Forward Flight
- LATERAL-DIRECTIONAL TRIM SOLUTIONS
- Power Effects on Trim
- Angle of Attack Stability
- Speed Stability
- Approximate Method
- Sideforce and Yawing and Rolling Moments
- Vertical Stabilizer Characteristics of the Example Helicopter
- Drag Parameters
- Zero Lift Angle of Attack
- Slope of Lift Curve
- Vertical Stabilizer
- Dynamic Pressure Ratio
- Slope of Lift Curve
- Horizontal Stabilizer
- Tail Rotor
- ELEMENTS OF THE TRIM EQUATIONS
- The Helicopter in Trim
- MOMENTS PRODUCED BY FLAPPING
- FLAPPING DUE TO PITCH AND ROLL VELOCITIES
- FLAPPING EQUATIONS IN FORWARD FLIGHT
- Blade Time Constant
- Cross-Coupling
- Damping Ratio
- Dihedral Effect
- Flapping That Is Caused by Pitch and Roll Angular Velocities
- Lateral Flapping in Fbrward Flight
- Collective Pitch Change in Forward Flight
- Shaft Tilted in Forward Flight
- Change of Forward Speed
- Cyclic Pitch Change in Hover
- Shaft Tilted in Air in Hover
- Rotor Flapping Characteristics
- REPRESENTING AIRFOIL DATA WITH EQUATIONS
- Dynamic Effects on Pitching Moment
- Pitching Moments at High Mach Numbers
- Position of the Aerodynamic Center
- Trailing Edge Tabs
- Influence of Airfoil Type on Pitching Moments
- Drag at Moderate Angles of Attack and Mach Numbers
- Drag Divergence Mach Number
- Maximum Dynamic Lift Coefficient
- Maximum Static Lift Coefficient at High Mach Numbers
- Maximum Static Lift Coefficient at Low Mach Numbers
- Airfoils for Rotor Blades
- Inverted Flight
- RETURN-TO-TARGET MANEUVER
- OPTIMUM TAKEOFF PROCEDURE AT HIGH GROSS WEIGHTS
- MAXIMUM DECELERATION
- MAXIMUM ACCELERATION
- Autorotative Indices
- Minimum Touchdown Speed
- Generating the Deadman’s Curve or Height-Velocity Diagram
- Glide Distance
- Steady Rate of Descent in Autorotation
- Rotor Speed Decay
- Producing Maximum Load Factors
- Special Performance Problems
- Forward Flight Ceilings
- Angle of Climb
- Rates of Climb
- Loiter Flight
- Maximum Ferry Range
- Payload-Range
- Collective and Cyclic Pitch for Trim
- Maximum Speed
- FORWARD FLIGHT PERFORMANCE