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Posts
- Category: Aircraft Flight (continued)
- Reattachment
- The generation of lift and the formation of the starting vortex
- Controlling the type of boundary layer
- Boundary layer control - preventing unwanted flow separation
- Boundary layer and stalling problems on swept wings
- More boundary layer problems on swept wings
- Boundary layer control - high lift devices
- Trailing-edge flaps
- Leading-edge devices
- Continuously variable camber
- The pros and cons of high lift devices
- Active high lift devices
- Boundary layer scale effect - model testing
- Effect on wind-tunnel testing
- Flight at very Low Reynolds numbers unmanned air vehicles (UAVs) and models
- Drag coefficient
- Boundary layer normal pressure (form) drag
- Reducing boundary layer normal pressure (form) drag
- Reducing frontal area
- Influence of boundary layer type
- Low-drag wing sections
- Low-drag aerofoil characteristics
- Choice of section
- Another benefit of high aspect ratio
- Reducing trailing vortex (induced) drag
- Wing-tip shape
- End-plates
- Wing-tip sails or feathers
- Winglets and other devices
- Drag due to interference effects
- Negative drag
- The dependence of drag on lift
- High speed flow
- Importance of speed of sound - Mach number
- Flow in a supersonic wind-tunnel
- The different types of high speed flow
- More about shock waves - normal and oblique shocks
- Mach waves and the Mach cone
- Wave drag
- More about oblique shock waves - turning the flow
- Turning the flow the other way - the expansion
- The development of supersonic flow over an aerofoil
- Transonic drag rise and centre of pressure shift
- The boundary layer and high speed flow
- Hypersonic flow
- Thrust and propulsion
- Jet propulsion
- The production of thrust forces by a jet engine
- Thrust and momentum
- Efficient propulsion
- Propellers
- Efficient propellers
- Variable pitch
- Constant-speed propellers
- Feathering and thrust reversal
- Number and shape of blades
- Contra-rotation
- Matching propeller to engine
- Speed limitation of propellers
- High speed propellers
- Fan propulsion
- The ducted fan
- The low speed ducted fan or propulsor
- Choice of powerplant
- Supercharging and turbocharging
- The need for an alternative
- The gas turbine
- Gas turbine efficiency
- Thermodynamic efficiency
- Gas turbine development
- Turbo-props
- Multi-spool engines
- By-pass or turbo-fan engines
- High by-pass ratio turbo-fans or fan-jets
- Ultra-high by-pass (UHB) engines, prop-fans and unducted fans
- Reheat or afterburning
- Thrust reversal
- Propulsion for supersonic flight
- The exhaust nozzle
- Ramjet propulsion
- Pure rocket propulsion
- Air-breathing rocket hybrids
- Engine installation
- The ideal propulsion system
- The atmosphere
- Speed and altitude measurement
- Cruising flight
- Performance in level flight
- Effect of wing loading on the drag curve
- Effect of altitude on the drag curve
- Best speed for economy and range
- Optimum economy with piston engine
- Cruise climb
- Aircraft size
- Other types of powerplant
- The economics of high speed
- Design for endurance
- Endurance with piston engine
- Endurance with turbo-jet propulsion
- Climbing performance