- 注册时间
- 2009-12-25
- 最后登录
- 2021-7-10
- 在线时间
- 3302 小时
- 阅读权限
- 200
- 积分
- 10
- 帖子
- 13416
- 精华
- 1
- UID
- 2036
|
Night Circuits Mass Brief Aim • To take-off safely, complete a circuit and land correctly at night. Application • To be able to safely takeoff and land at night Overview • Revision • Definitions • Principles – Lighting – Regulations/requirements • Considerations – Illusions at night • Air Exercise • Airmanship Revision • Instrument scans – Selective radial scan – Main instrument in our scan is the AH 15 20 25 10 5 RPM 0 1 2 3 4 ALT 6 5 7 8 9 VSI 20 20 5 15 10 10 15 5 40 60 80 120 100 140 160 T&B L R Definitions • Last light – Is the end of daylight (EoD) and is found in the AIP GEN 2.7-1 – Without a night rating, must be on the ground 10 minutes before EoD. • First light 1955 Definitions Definitions • PAL – Pilot Activated Lighting – Information found in ERSA for a particular airfield – Point Cook Airfield has the following lighting details: 3 SEC 3 SEC 3 SEC 1 SEC 1 SEC Principles • Runway Lighting – Runway has white edge lighting with green threshold and red end lighting. Principles • Aerodrome lighting – Taxiway lighting is either green centreline or blue sideline lights. – Holding point is amber lighting. – Obstacles have red flashing light at top. Principles • Aerodrome Required lighting (AIP ENR 1.1-87: 70.1b) – An aircraft must not take off or land at an aerodrome at night unless the following lighting is operating: – For a PVT, AWK or CHTR Aircraft: Runway edge lighting, threshold lighting, illuminated wind direction indicator and obstacle lighting. – NOTE if the illuminated wind direction indicator is not available, the aircraft may continue if the wind velocity information can be obtained from an approved observer Principles • Aircraft Instruments required for NVMC (CAO 20.18 – Appendix IV): – Air speed indicator (must have alternate static source) – Altimeter (must have alternate static source) – Direct reading compass – A clock with hours, minutes and seconds – Outside air temperature indicator – Attitude indicator (Artificial Horizon) (if doing NVFR Freight or Pax charter need duplicated sources of power supply) – A heading indicator (Directional Gyroscope) (if doing NVFR Freight or Pax charter need duplicated sources of power supply) – A turn and slip indicator (if doing NVFR Freight or Pax charter need duplicated sources of power supply) – Means of indicating power to gyros Principles • Electric lighting equipment for NVMC (CAO 20.18 – Appendix V): – Lighting shall be such that: • Illuminated items are easily readable • Its direct or reflected rays are shielded from pilots eyes • There is an alternative power source if normal power is lost • It emanates from fixed installations • Intensity control of the lighting unless it is demonstrated that the non-dimmed instrument lights are satisfactory under all conditions of flight likely to be encountered. – 1 landing light (unless doing Pax charter need 2 landing lights or single lamp with two separately energised filaments). – Lights in all passenger compartments – Pilots compartment lights; suitable for reading maps and other flight documents. – Emergency lighting as a shockproof torch for each crew member. Principles • Position and Collision lights (CAR 196): – The following navigation lights: • An unobstructed red light projected above and below the horizontal plane through an angle from dead ahead to 110 degrees port (left) • An unobstructed green light projected above and below the horizontal plane through and angle from dead ahead to 110 degrees starboard (right) • An unobstructed white light projecting above and below the horizontal plane rearward through an angle of 140 degrees, equally distributed on the left and right sides. – The navigation lights shall be steady lights (unless CASA otherwise directs) – If aircraft is in flight or operating in aerodrome area, in addition to navigation lights shall have an anti-collision flashing red light visible in all directions within 30 degrees above and below horizontal plane of the aircraft. – Where the lights are flashing lights, the aircraft: (a) shall display an additional flashing white light visible in all directions; and (b) may display an additional flashing red rear light; in accordance with such requirements as CASA, having regard to Annex 8 of the Convention, specifies in Civil Aviation Orders. Principles • Aircraft lighting Considerations • Sensory Illusions – Vestibular organs • 3 semi-circular organs in the inner ear which detect accelerations by moving tiny hair follicles • Constant velocity or gradual changes in velocity is not detected Considerations • Somatogravic Illusion – Acceleration / Deceleration causes sensations of up / down pitch. Worst at night during a goaround or climb. – Climb/go-around should be completed with 100% reference to aircraft instruments Considerations • Sensory Illusions – Spatial Disorientation • Disagreement of senses • Slow roll to left not detected by senses. Correct with right bank. Senses detect the right bank and instruments show S&L! • Causes vertigo/leans. – Partial Panel Failure • Detect failed instruments by cross-checking other instruments. Use inverted V scan • DG fails, supplement with magnetic compass. Remember ONUS and SAND 0 1 2 3 4 ALT 6 5 7 8 9 VSI 20 20 15 5 10 10 15 5 40 60 80 120 100 140 160 T&B L R Considerations • Runway width Illusions – All the following runways have the same length, but different widths. – Long and thin runways can give the illusion of being too high, and wide runways give the illusion of being too low Considerations • Runway Slope Illusions – The following runways are at different slopes – Upslope is most dangerous as the pilot would think he is too high and fly a lower/flatter approach, which could result in hitting trees or other obstacles Considerations • Distance judgement at night – Lighted objects on a clear night can appear brighter and closer than they really are. – Pilot may think his approach is too high – Pilot may think he is closer to a town then he really is (Forced landing consideration). • Black hole illusion – Without visual cues, the pilot has the misperception of proper orientation, but the runway appears to move or remain incorrectly positioned. – Will get a black hole illusion when we use a landing light on a dark day. Considerations • Lighting Failures – Landing light failures will be practised – Aerodrome lighting failure consideration • Attempt to turn on PAL • Check PAL frequency – Carry portable electric torch for cockpit lighting failures. Air Exercise • Pre-Flight – Conducted normally, paying particular attention to lighting. • Start Up – As per day, except turn on Beacon and navigation lights prior to start. Clear prop with 3 flashes of landing light • Taxiing – Harder to judge aircraft speed, need to look out side windows. – Taxi with taxi light on • Take-Off – Turn on Landing light on take-off (turn off taxi light) – Leave Landing light on for circuits – Conducted 100% visual, as per day – Lift-off, climb out on 100% instruments – Check +ve RoC, safe IAS, maintaining RWY HDG – Use DG for headings in the circuit Air Exercise • X-Wind – Conducted 75% instruments, 25% visual • Downwind – 50% instruments, 50% visual – Pre landing checks, turn on landing light, check windsock • Base – 75% visual, 25% instruments • Final – 100% visual – Use RWY lighting for approach guidance Air Exercise • Landing – RWY lights at shoulder level, power to IDLE – watch end lights to judge FLARE and HOLDOFF ON PROFILE BELOW PROFILE ABOVE PROFILE Airmanship • Lookout (extremely important to call your sequence number on the base call) • Remember instrument scans • Trust instruments and be aware of illusions • Correct handover/takeover procedure • Be familiar with aerodrome lighting |
|