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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 · 18 stages, 16 scored
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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 2,021 m of the approach.
Plan view — the first 2,021 m of the 2,796 m runway, to the same scale as the side view.
The 164 m touchdown sits inside the full-score zone. The arrival was smooth.
The rest of the report
The flight in question was operated by a CRJ900 aircraft. Taxiing from the parking to the runway took 10 minutes and covered a distance of 3 nautical miles (nm). Upon receiving clearance, the aircraft began its departure roll from runway 30 at KLBF North Platte Regional Airport Lee Bird Field. The takeoff distance was 1,505 meters, which made up 62% of the total runway length. The liftoff speed was achieved at 157 knots (kt).
The local weather conditions at the time of departure were significant, with a temperature of 24°C and a 21-knot wind blowing from a direction of 20°. This created a crosswind component of 21 kt and a headwind component of 6 kt. After lifting off, the aircraft started its enroute climb to a higher altitude. This phase of the flight began approximately 1 mile north-west of KLBF, where the aircraft was climbing from a field elevation of 3,846 feet to a cruising altitude of 15,268 feet. The climb was achieved in just 5 minutes and covered a distance of 23 nm.
The enroute level cruise phase started 7 miles north of 5NE5 Trego Airport Sutherland (Nebraska, United States) and lasted for 7 minutes. During this period, the aircraft covered a significant distance of 42 nm. Subsequently, the enroute descent phase began 9 miles northwest of NE99 Hawkins Ranch Airport Arthur (Nebraska, United States). The aircraft descended from a cruising altitude of 15,283 feet to a lower altitude of 5,256 feet, a decrease of 10,027 feet. This descent phase lasted for 10 minutes and covered a distance of 38 nm.
Upon entering the final approach phase, the aircraft was heading 315.0° towards runway 30 at KAIA Alliance Municipal Airport from the south-east. The aircraft was at an altitude of 1,307 feet above ground level (agl) and 4 nm from the runway. The local weather conditions for the approach phase were characterized by a temperature of 22°C and a wind speed of 16 kt, blowing from a direction of 9°. This resulted in a crosswind component of 13 kt and a headwind component of 9 kt.
The aircraft landed on runway 30 at KAIA Alliance Municipal Airport, which had a runway length of 2,796 meters. The threshold height was good, and the threshold speed was also achieved at 141 kt. However, the touchdown speed was slightly faster than desired at 143 kt. The touchdown rate was very heavy at -787 fpm, indicating a steep descent rate at the moment of touchdown. Furthermore, the runway touchdown position was significantly misaligned, being 27.2 meters from the centerline.
The total landing distance was 1,938 meters, accounting for 69% of the runway length. Post-landing, the runway rollout alignment was also found to be misaligned by 23.2 meters from the centerline. Taxiing from the runway to the parking area took 3 minutes and covered less than 1 nm.
In conclusion, the flight was completed with a total distance of 113 nm and a total flight time of 34 minutes. The aircraft used 1,012 kg of fuel during the entire journey.
Comprehensive Report: Aircraft CRJ900 Landing at KAIA Alliance Municipal Airport
On this particular landing, the CRJ900 aircraft performed with a score of 78.9%, indicating room for improvement. The final approach was initiated from the south-east direction, heading towards runway 30 at KAIA Alliance Municipal Airport. The aircraft was at an altitude of 1,307 feet above ground level (agl) and 4 nautical miles away from the runway threshold.
The good threshold height and threshold speed of 141 knots signified a smooth and controlled approach. The touchdown distance of 158 meters was within acceptable limits, suggesting that the aircraft maintained control until touchdown. However, the touchdown speed of 143 knots was slightly above the desired speed, which might have contributed to a higher-than-expected touchdown rate.
A critical aspect of this landing was the heavy touchdown rate of -787 feet per minute. A higher touchdown rate can lead to a loss of control and potentially increase the risk of an incident or accident. It is essential to note that the CRJ900 is a relatively short-range, narrow-body jet, and touchdown rates should be optimized for safe operation.
The runway touchdown position was significantly misaligned by 27.2 meters from the centreline. This misalignment can lead to difficulties in maintaining control during the rollout phase, which may increase the risk of an incident. Furthermore, the rollout alignment was off by 23.2 meters from the centreline, indicating that the pilot struggled to maintain control and alignment after touchdown.
Local weather conditions at the time of the landing included a temperature of 22 degrees Celsius and a wind speed of 16 knots from a 9-degree bearing. The crosswind component was 13 knots, and the headwind component was 9 knots. The pilots will need to factor in these wind conditions and adjust their approach and landing accordingly to improve the overall performance.
In conclusion, while the CRJ900 aircraft performed reasonably well, there are areas of concern, such as the heavy touchdown rate and significant misalignment of the runway touchdown position and rollout alignment. To improve the landing score, the pilots will need to focus on optimizing their approach and touchdown speeds, as well as maintaining control and alignment during the rollout phase.
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