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MY FS FLIGHTS
Flight Score
Shorten the long landing
Ground effect becomes significant below about one wingspan of height. A Cessna 172, with a 36 ft span, enters ground effect at flare height - the float it feels in the hold-off is ground effect arriving on cue. An A320, with a span around 117 ft, has been in ground effect since before the threshold and there is no sudden cushion to feel, only a gradual reduction in induced drag that lengthens any float you allow.
Read more in Flare TimingStart to finish · 10 stages, 10 scored
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The threshold, the flare and the hold-off. The approach that led to it is the stabilisation gates below.
One stabilised approach gate: five checks where the approach path is 500 ft above the runway. The 1,000 ft gate was not assessed, because the approach did not join final that far out.
The approach, gate by gate
Side view — the last 1,524 m of the approach.
Plan view — the first 1,524 m of the 3,056 m runway, to the same scale as the side view.
The 466 m touchdown sits inside the full-score zone. The arrival was smooth.
The rest of the report
Taxiing from the parking area to the runway at YAMB RAAF Base Amberley was a swift process, taking less than a minute to cover the short distance of less than 1 nautical mile. The Boeing C17 then began its departure roll on runway 15, utilizing 46% of the available length to achieve liftoff at a speed of 133 knots. The local weather conditions at the time were characterized by a temperature of 29°C and a moderate wind blowing at 13 knots from a direction of 80°, resulting in a crosswind component of 13 knots and a headwind component of 3 knots.
As the aircraft climbed to a higher altitude, it transitioned from the enroute climb phase to the enroute descent phase, with the latter initiated 1 mile southwest of Walloon. The descent from 2,253 feet above sea level to 503 feet above sea level was a controlled process, with a decrease of 1,750 feet achieved in 2 minutes while covering a distance of 6 nautical miles. The final approach to runway 15 at YAMB RAAF Base Amberley was conducted from the north, with the aircraft maintaining a heading of 158.0° at an altitude of 390 feet above ground level and a distance of 1 nautical mile from the runway threshold.
The landing on runway 15 was executed with a threshold speed slightly below the target of 130 knots, resulting in a touchdown distance of 463 meters. The touchdown speed of 115 knots was within acceptable limits, but the touchdown rate of -432 feet per minute was somewhat higher than desired. Notably, the runway touchdown position was significantly misaligned from the centerline by 16.9 meters. The total flight distance of 16 nautical miles was achieved in 4 minutes, with the aircraft consuming 2,522 kilograms of fuel.
The Boeing C17 aircraft touched down on runway 15 at YAMB RAAF Base Amberley, demonstrating a good threshold height. However, the threshold speed was slightly below the target at 130 kt, indicating a minor deviation from the optimal approach speed. The aircraft maintained a steady descent, resulting in a touchdown distance of 463 m, which was within acceptable limits.
Upon touchdown, the aircraft's speed was recorded at 115 kt, which was considered good. However, the touchdown rate was hard at -432 fpm, suggesting a slightly aggressive touchdown. The runway touchdown position was significantly misaligned by 16.9 m from the centreline, which may have been due to factors such as crosswind or pilot error. The local weather conditions, with a temperature of 29 °C and a wind speed of 14 kt at 80 °, may have contributed to the deviation from the centreline.
The overall performance of the Boeing C17 during the landing was satisfactory, with a score of 91.8%. The aircraft's ability to maintain a good threshold height and touchdown speed was commendable, despite the hard touchdown rate and significant misalignment from the centreline. The pilots' skills and experience will be reviewed to determine the cause of the deviation and to identify areas for improvement.
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