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Low Visibility Operation (LVO)

Low Visibility Operation (LVO)


Duration: 01:20 hour

Exam: 25 Questions

Available: 90 days


    After completion of the Low Visibility Operation (LVO)course, the successful ap­plicant should be thoroughly familiar with the basic principles, limitations and special procedures in all weather operation. They should also be familiar with the requirements and particularities of low visibility takeoffs, approaches and landings.



    • Characteristics of visual and non-visual approach aids
    • Aeroplane-specific flight systems, and instrumentation and display systems and the associated limitations
    • Changes, if any, to aerodrome operating minima necessitated by inoperable or unserviceable instruments or systems 
    • Approach and missed approach procedures and techniques
    • Use of visibility and RVR reports, including the various methods of assessing RVR, and the limitations associated with each method, the characteristics of fog and its effect on the relationship of RVR to thempilot’s visual segment and the problem of visual illusions
    • Influence of wind shear, turbulence, precipitation and day or night conditions
    • The pilot’s tasks at DA/H, MDA/H or MAPt; the use of visual cues, their availability and limitations in reduced RVR and various glide path angles, pitch attitudes and cockpit cut-off angles; the heights at which various cues may be expected to become visible in actual operations; procedures and techniques for transition from instrument to visual reference, including the geometry of eye-height, wheel height, antenna position and pitch attitude with reference to various pitch attitudes
    • Action to be taken if the visibility deteriorates when the aeroplane is below DA/H or MDA/H, and the techniques to be adopted for transition from visual to instrument flight
    • Action in the event of ground or airborne equipment failure, both above and below DA/H or MDA/H
    • Significant factors in the calculation or determination of aerodrome operating minima, including height loss during the           missed approach manoeuvre and obstacle clearance
    • The effect of system malfunction on auto-throttle or autopilot performance (e.g. engine failure, pitch trim failure) 
    • Procedures and techniques for reduced visibility take-offs including rejected take-off and action to be taken if the visibility or aerodrome facilities deteriorate during take-off run

    • Flight Crew 
    • Dispatch
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