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Lecture 15 -R22 Flight Safety (SFAR) -Pre-flight, Pre-start and Shut Down Private Pilot Licence (Helicopter Ground Course)

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Presentation on theme: "Lecture 15 -R22 Flight Safety (SFAR) -Pre-flight, Pre-start and Shut Down Private Pilot Licence (Helicopter Ground Course)"— Presentation transcript:

1 Lecture 15 -R22 Flight Safety (SFAR) -Pre-flight, Pre-start and Shut Down Private Pilot Licence (Helicopter Ground Course)

2 Lecture 16 -Hangar visit -Ground Demo: Pre-flight, Pre-start -Written Assessment Private Pilot Licence (Helicopter Ground Course)

3 L15 - RHC Safety Alert Low G - Pushovers Low RPM Rotor Blade Stall Settling with power Carburetor Ice Power Lines Night Flight + Bad Wx Airplane Pilots High Risk RHC Safety Course Movie 16:50-19:00

4 L15 - Low G - Pushover (No Practice) Tail rotor pushes ship to roll R Pilot tend to control cyclic to L Mast tilt to its limit Stopper chop the mast Cause mast bumping Mast may come off in flight Action to cure: Aft cyclic to reload then roll Left

5 L15 - Low RPM rotor stall (No Practice) sound and light warning (<97%) pilot raise collective worsen case main rotor decay very fast Blade stall fell or blow back Cut off tail cone Fall straight down Action to cure: Roll throttle on then lower collective

6 L15 - Settling with power Push down by own MR downwash High descent rate and slow speed <300 fps before <30 KIAS lower descent rate before reduce speed Action to cure: Fore /sideway cyclic to escape the MR downwash

7 L15 - Carburetor Icing (No Practice) Latent heat drawn from vaporized fuel Ice formed from water vapour around venturi tube Causes: in (1) Cool temp or (2) high humidity and (3) when reduce power at/below 18 MP Action to prevent: Apply Cab heat (1) before reduce to 18 MP (2) CAT enter yellow arc

8

9 L15 - Power Lines RHC Safety Course Movie 06:54-07:50 Avoid below 500 ft Fly above the tower /pole Look around

10 L15 - Night Flight and Bad Weather No Heli flying without horizon ref No actual IFR flying Keep visual on horizon avoid IMC Action to follow just in case IMC: (1) Rely on attitude instrument flying (2) climb to safe altitude and (3) call assistance and look for VMC landing

11 L15 - Airplane Pilot flying attitude Different airspeed concept Stall recovery reflex reaction Golden rule to avoid mishaps: Practice makes perfect /w CFIs

12 L15 - NTSB Accident Report on R22 Yr TotalEnginePilotOther % 7% 92% 1% No. of R22 in op in 1980: 35 No. of R22 in op in 1994: 745 No. of R22 in op in 2004: (3700)

13 L15 - NTSB Accident Report on R22 UK R22 only 2 in-flight breakup Japan - Use for tuna fishing, 110/month, No single breakup, low RPM, mast bumping Australia - Cattle mustering, few breakup of similar type

14 L15 - NTSB Accident Report on R22 Primary Causes: (1) Wire strike (2) Low RPM blade stall (3) Continue enter IMC

15 L15 - NTSB Accident Report on R22 In 1995 FAA suggestion to cure Low RPM blade stall - install a new rotor governor system - training pilots on throttle/collective control not relying on governor/ correlator

16 L15 - NTSB Accident Report on R22 to cure Low RPM blade stall - Re-design the cyclic control so as more easy for each pilot to gain control - Remain unchanged use T-bar cyclic (1) New design heavier (2) More danger if leaning forward accidentally (3) Get use to old design by many pilots

17 L15 - NTSB Accident Report on R22 Facts to note: (1) Number of R Av yr %>

18 L15 - NTSB Accident Report on R22 Facts to note: (2) Most surviving Low RPM cases - Backside of the power curve - Downwind approach - High density altitude

19 L15 - NTSB Accident Report on R22 Facts to note: (3) 30% of engine failure due to - Carb ice during practice auto

20 L15 - NTSB 90-2K Acc (Engine type) YearTotalRecipTurboOther (57%) 99 (42%) 2 (1%) (62%) 67 (34%) 9 (4%) (55%) 70 (33%) 25 (11%) (51%) 76 (42%) 13 (7%) (45%) 105 (48%) 15 (7%) (51%) 76 (46%) 4 (3%) (43%) 98 (54%) 6 (3%) (47%) 80 (46%) 12 (7%) (51%) 87 (43%) 13 (6%) (38%) 106 (50%) 27 (13%) (35%) 93 (40%) 57 (25%) Total (48%) 957 (43%)183 (8%)

21 1.Emergency locator transmitter 2.Emergency VHF frequency Transponder codes Emergency Lost Hijack L15 Emergency Procedures

22 Emergency Location Transmitter

23 ELT

24

25 L15 Frequency & Transponder code Emergency MHz May Day May Day May Day Pan Pan Pan Transponder Emergency-7700 Lost Hijack- 7500

26 Helicopter Safety Settling with Power – Gyroplane Settling with Power - CH47 Dynamic Roll over – B206 Nearly Roll over – R44

27 L16 R22 Preflight, Prestart & Shutdown Check


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