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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 · 8 stages, 7 scored
Events
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 1,841 m of the approach.
Plan view — the first 1,841 m of the 2,490 m runway, to the same scale as the side view.
Touched down 1,468 m past the threshold — beyond the full-score zone. The arrival was smooth.
The rest of the report
Departing from Groningen Airport Eelde, the Grumman AA-5A Cheetah began its takeoff roll on runway 05, accelerating to a liftoff speed of 66 kt within 741 meters, which accounted for 30% of the available runway length. The aircraft lifted off into a calm local weather environment, with a temperature of 15 °C and a gentle wind of 1 kt from the west.
As the aircraft transitioned into the enroute phase, it leveled off overhead Yde, a small town in the province of Drenthe, Netherlands. The brief cruise phase lasted for 1 minute, covering a distance of 1 nautical mile. The aircraft then began its final approach to runway 23 at Groningen Airport Eelde, descending from an altitude of 178 feet above ground level (agl) and aligning itself with the runway heading of 229.0°. The landing was executed with a threshold speed of 98 kt, and the touchdown point was located beyond 50% of the available runway length, resulting in a total landing distance of 1,740 meters, which accounted for 70% of the runway length.
The landing was characterized by a perfect touchdown rate of -38 feet per minute, and the runway rollout alignment was very good. The aircraft's fuel consumption was minimal, with a total fuel usage of -2 kg. The total flight distance was 5 nautical miles, and the flight duration was 4 minutes. The aircraft's performance was satisfactory, considering the calm local weather conditions and the relatively short runway length.
The final approach to runway 23 at EHGG Groningen Airport Eelde was initiated from the north east, heading 229.0° at 0 nm and 178 ft above ground level. The approach quality was satisfactory, with the threshold height at 70 ft agl being well above the target. The aircraft maintained a steady descent, aligning itself with the runway for a smooth touchdown.
As the aircraft touched down, it used more than 50% of the available runway, with a touchdown point located at 1,740 m from the threshold. The touchdown speed was 44 kt, which was within acceptable limits. The touchdown rate of -38 fpm was perfect, indicating a controlled and stable descent. However, the runway touchdown position was slightly misaligned by 3.6 m from the centreline, which may require some adjustments in the approach and landing technique.
The rollout phase was executed well, with the aircraft maintaining a very good alignment with the centreline. The total landing distance of 1,740 m was 70% of the available runway length, which is within acceptable limits. The local weather conditions, with a temperature of 15 °C and a wind speed of 1 kt at 270°, did not pose any significant challenges to the landing. Overall, the landing was scored 86.2%, indicating a good performance, but with some room for improvement in terms of approach and touchdown alignment.
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