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MY FS FLIGHTS
Flight Score
Keep the approach speed on target
Every knot above Vref is stored kinetic energy, and energy stored at the threshold must be dissipated in ground effect before the aeroplane will stop flying. Because kinetic energy scales with the square of speed, the excess you must dissipate grows fast. At a 45-knot approach, five knots hot is over a tenth more speed and roughly a quarter more energy to get rid of in ground effect. This is why the fix is never in the flare. It was decided three miles earlier, on final, at the airspeed indicator.
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The threshold, the flare and the hold-off. The approach that led to it is the stabilisation gates below.
Two stabilised approach gates, each with five checks, where the approach path is 1,000 ft and 500 ft above the runway.
At the 1,000 ft gate: gear still up, no landing flap set and sink rate above what the glideslope needed.
At the 500 ft gate: gear still up, no landing flap set and sink rate above what the glideslope needed.
The approach, gate by gate
Side view — the last 1,524 m of the approach.
Plan view — the first 1,524 m of the 3,923 m runway, to the same scale as the side view.
Touched down 606 m past the threshold — beyond the full-score zone. The arrival was smooth.
The rest of the report
The flight in question took off from Mohammed V International Airport in Morocco, utilizing the Boeing 747-8 aircraft. The departure roll occurred on runway 35R, requiring a takeoff distance of 1,643 meters or 44% of the runway. As the aircraft lifted off, it reached a liftoff speed of 184 knots.
The local weather conditions at the time of takeoff featured a relatively moderate temperature of 19 degrees Celsius, accompanied by a nearly negligible wind speed of 1 knot from a direction of 269 degrees. This resulted in a crosswind component of 1 knot and an almost negligible headwind.
As the flight progressed, the aircraft climbed at an altitude of 2 miles northeast of the location of Zawyat an Nwacer. The climb achieved a significant gain in altitude, ascending from an initial 1,581 feet above sea level to an en route cruise altitude of 27,036 feet above sea level. This notable increase of 25,455 feet in elevation was attained within the span of 7 minutes as the aircraft covered a distance of approximately 37 nautical miles.
The en route cruise phase began approximately 16 miles southeast of Settat and continued for a duration of 202 minutes. Throughout this phase, the aircraft flew at an altitude of 27,036 feet above sea level and covered a total distance of 1,586 nautical miles.
Upon entering the descent phase, the aircraft started descending approximately 7 miles east of Save in the Collines Department of Benin. The descent involved a decrease in altitude from 27,001 feet above sea level to a lower altitude of 1,134 feet above sea level within a span of 15 minutes. During this phase, the aircraft covered a distance of approximately 94 nautical miles.
The final approach to runway 18R at Murtala Muhammed International Airport in Nigeria originated from the north, heading in a direction of 180 degrees while maintaining an altitude of approximately 3 nautical miles with an altitude of 1,061 feet above ground level.
The aircraft touched down on runway 18R, which featured a length of 3,923 meters. Although the threshold height was above the target height, the landing involved an excessively high threshold speed of 307 knots. Furthermore, the touchdown point was located approximately 963 meters beyond the designated touchdown zone, with an excessively fast touchdown speed of 304 knots and a very heavy touchdown rate of -793 feet per minute.
Moreover, the runway touchdown position was significantly misaligned with the centerline of the runway by a distance of 52.1 meters. Local weather conditions at the time of landing featured a temperature of 15 degrees Celsius, a wind speed of 1 knot, and a direction of 270 degrees. The crosswind component was 1 knot, while the headwind was negligible.
The total landing distance was approximately 1,889 meters or 48% of the runway length. Furthermore, the runway rollout alignment was misaligned from the centerline by a significant distance of 33.5 meters. Ultimately, the flight covered a total distance of 1,724 nautical miles and employed a fuel quantity of 40,085 kilograms within a span of 226 minutes.
This report details the landing of a Boeing 747-8 aircraft at Murtala Muhammed International Airport (DNMM). The final approach was made from the north, heading 180.0 degrees at 3 nautical miles and 1,061 feet above ground level (agl). The aircraft landed successfully on runway 18R, which has a length of 3,923 meters.
However, there were several issues with the landing performance of the aircraft. The threshold height at 62 feet agl was above the target, indicating that the aircraft failed to land at the recommended height, potentially leading to a bumpy ride for passengers and crew. More concerning was the excessively high threshold speed of 307 knots, which is higher than the recommended speed for landing, and the touch-down point was located 963 meters beyond the touch-down zone.
Upon touchdown, the aircraft's speed was excessively high at 304 knots, contributing to a very heavy touchdown rate of -793 feet per minute (fpm). This is much faster than the recommended rate, which can cause excessive stress on the aircraft's landing gear and potentially damage the runway. Furthermore, the runway touchdown position was significantly misaligned by 52.1 meters from the centreline, indicating that the pilot may have deviated from the recommended landing path.
The local weather conditions were relatively calm, with a temperature of 15°C and a gentle breeze of 1 kilometer per hour from the west (270 degrees). There was a negligible headwind and a light crosswind of 1 kilometer per hour, which should not have significantly impacted the landing.
The total landing distance, which is the distance from the touch-point to where the aircraft came to a complete stop, was 1,889 meters, which accounts for 48% of the runway's length. During the rollout phase, the aircraft was significantly misaligned by 33.5 meters from the centreline, which can make it difficult for other aircraft to navigate and may require additional taxiing distance.
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