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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 · 21 stages, 19 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.
Side view — the last 7,233 ft of the approach.
Plan view — the first 7,233 ft of the 8,976 ft runway, to the same scale as the side view.
Touched down 4,210 ft past the threshold — beyond the full-score zone. The arrival was smooth.
The rest of the report
The flight began with the aircraft, an Airbus A319, taxiing from the parking area to the runway at Portland International Airport (KPDX). This process took approximately 6 minutes and covered a distance of less than 1 nautical mile. The departure roll took place on runway 10L, and the aircraft lifted off after covering a distance of 3,831 feet, which accounted for 48% of the runway length. The liftoff speed was 152 knots.
As the aircraft climbed to a higher altitude, it encountered local weather conditions with a temperature of 52°F and a wind speed of 0 knots at 0 degrees. The aircraft then began its enroute climb, starting 1 mile north of Maywood Park, Oregon. During this phase, the aircraft ascended from an altitude of 1,039 feet above sea level to 36,981 feet above sea level, an increase of 35,942 feet, in 20 minutes and covering a distance of 133 nautical miles.
The enroute level cruise phase started 2 miles south of the Billiebob Ultralightport Grants Pass in Oregon and lasted for 23 minutes, covering a distance of 188 nautical miles. The aircraft then began its enroute descent, starting 2 miles south of the Running Creek Ranch Airport in Idaho. During this phase, the aircraft descended from an altitude of 36,988 feet above sea level to 11,244 feet above sea level, a decrease of 25,744 feet, in 27 minutes and covering a distance of 152 nautical miles.
The aircraft then entered another enroute level cruise phase, starting 2 miles northwest of Belgrade, Montana, and lasted for 25 minutes, covering a distance of 6 nautical miles. The enroute descent phase started 1 mile east of the Pierces Airport in Montana and lasted for 9 minutes, covering a distance of 19 nautical miles. The aircraft then entered another enroute level cruise phase, starting 4 miles southwest of Ponderosa Pines, Montana, and lasted for 12 minutes, covering a distance of 14 nautical miles.
The final approach to runway 12 at Bozeman Yellowstone International Airport (KBZN) took place from the northwest, with the aircraft heading at 135.0 degrees at an altitude of 2 nautical miles and 1,752 feet above ground level. The landing took place on runway 12, which had a length of 8,976 feet. The threshold height at 124 feet above ground level was excessively over the target, and the threshold speed was too high at 166 knots.
The touchdown point was 1,120 feet beyond the touchdown zone, and the touchdown speed was 150 knots, which was fast. The touchdown rate was fair at -204 feet per minute. The runway touchdown position was excessively misaligned by 135 feet from the centreline. The local weather conditions at the time of landing were a temperature of 43°F and a wind speed of 0 knots at 0 degrees.
The total landing distance was 5,243 feet, which accounted for 58% of the runway length. The runway rollout alignment was significantly misaligned by 128 feet from the centreline. The aircraft then taxied to the parking area from the runway, taking approximately 5 minutes and covering a distance of less than 1 nautical mile.
The total flight distance was 516 nautical miles, and the flight duration was 99 minutes. The aircraft used 8,002 pounds of fuel during the flight.
The Airbus A319 aircraft has successfully landed at KBZN Bozeman Yellowstone International Airport, but the landing was not without its issues. The final approach to runway 12 was initiated from the north-west, heading 135.0° at 2 nautical miles and 1,752 feet above ground level (agl). The aircraft touched down on the runway, but the landing was not ideal.
One of the main concerns was the excessive height at the threshold, which was 124 feet agl, significantly above the target. This could have been a result of the aircraft being too high on final approach, or the pilots not properly configuring the aircraft for landing. Additionally, the threshold speed was too high at 166 knots, which could have contributed to the aircraft being too fast on touchdown.
The touchdown point was 1,120 feet beyond the touchdown zone, indicating that the aircraft landed too far down the runway. The touchdown speed of 150 knots was also fast, which could have put additional stress on the aircraft's landing gear. However, the touchdown rate of -204 feet per minute (fpm) was fair, indicating that the aircraft was able to slow down relatively quickly after touchdown.
The runway touchdown position was excessively misaligned by 135 feet from the centreline, which could have made the landing more difficult and increased the risk of veering off the runway. The local weather conditions were not a factor in this landing, with a temperature of 43°F and no wind.
The total landing distance was 5,243 feet, which is 58% of the runway length. This is a relatively long landing distance, indicating that the aircraft took some time to come to a stop after touchdown. The runway rollout alignment was also significantly misaligned by 128 feet from the centreline, which could have made it difficult for the pilots to maintain control of the aircraft during the rollout phase.
Overall, while the Airbus A319 was able to land safely at KBZN Bozeman Yellowstone International Airport, the landing was not ideal, and there were several areas for improvement. The pilots could have worked on configuring the aircraft for a more precise landing, and the aircraft's performance could have been optimized to reduce the landing distance and improve the touchdown speed.
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