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Posts
- Category: Helicopter Test and Evaluation (continued)
- Automatic stabilization equipment (ASE)
- Lateral and directional static stability
- Longitudinal static stability
- EFFECT OF AFCS ON HANDLING QUALITIES TESTING
- Specific testing of FADEC systems
- Flight idle power contribution
- Transient torque response
- Engine matching
- Static droop measurement
- Engine(s) and rotor starting
- ENGINE AND ROTOR GOVERNING
- Managing pressure errors
- AFTTC method
- GPS methods
- Trailing pitot-static method
- Formation method
- Speed course method
- Tower fly-by or aneroid method
- PRESSURE ERROR MEASUREMENT
- Warning and alerting systems
- Night lighting assessment
- Electronic cockpit displays
- Display of information
- Anthropometrical considerations
- Entry and exit
- COCKPITS
- Test conduct
- Preparation for systems testing
- Systems Testing
- Mission modes
- Navigation modes
- Forward flight holds
- Autopilots
- Movable horizontal stabilizers
- Typical AFCS systems for IFR flight
- Trim follow-up systems
- Rate command or attitude command and attitude hold
- Rate command and short-term attitude hold
- Characteristics of typical stability augmentation systems
- Quadruplex
- Reliability and availability
- Transparency and override facilities
- Output devices
- Computers
- Sensors
- System components
- Lateral static stability
- Lateralldirectional oscillation
- AUTOMATIC FLIGHT CONTROL SYSTEMS
- Basic power flying control systems
- Types of helicopter flying control systems
- FIG power contribution at autorotative rotor speed
- Flight idle glide
- Variation of static droop with airspeed
- Flight at constant torque
- Variations in the static droop law
- Transient droop and overswing
- Fixed turbine control systems
- Droop reduction or cancellation
- Static droop and governor gain
- Free turbine governor characteristics
- Engine control system requirements
- Fixed turbine enginelrotor characteristics
- Gas turbine engine and rotor characteristics
- ENGINE CONTROL AND ROTOR GOVERNING SYSTEMS
- Angle of attack and sideslip
- Airspeed
- Off-standard and design atmospheres
- Helicopter Systems
- Presentation and interpretation of results
- Pace vehicle operations
- Low-speed testing
- MISSION TASK METHODS
- Computer generated sweeps
- Flight techniques
- Frequency spread
- Test methodology
- Frequency response characteristics
- FREQUENCY DOMAIN METHODS FOR CONTROL RESPONSE ASSESSMENT
- Manoeuvre quickness
- Pulse inputs
- Step response
- Adverse yaw/proverse yaw/heading delay
- Lateral/directional oscillation
- Specification requirements
- Methods of excitation
- 5.3.3 Manoeuvring at reduced load factor
- Effect of changes in collective pitch
- Flight test methods and results
- MANOEUVRE STABILITY TESTING
- Turns on one control
- Lateral and directional static stability
- Trimmed flight control positions tests
- U = w = p = q = p = q = r = Qc = 0 Thus the equations of motion reduce to
- Trim system evaluation
- Freeplay
- Evaluating control forces
- Stability and Control Testing
- Effect of airspeed on dynamic modes
- Short-term or the roll (subsidence) mode