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A YS-11 aircraft departed from Brustem Airfield in Sint-Truiden, Belgium, with a takeoff distance of 893 meters, taking 75% of the available runway length. The aircraft lifted off at a speed of 118 knots and climbed away from the airfield, navigating through local weather conditions of 11 degrees Celsius and a 1-knot wind from 343 degrees, resulting in a negligible crosswind and headwind of 0 knots.
As the aircraft entered into its enroute climb, it started 1 mile southwest of Zepperen in Flanders, Belgium, and climbed to 9,867 feet above sea level, achieving a vertical ascent of 8,646 feet in just 15 minutes while covering a distance of 26 nautical miles. From this point, the plane transitioned into a level cruise mode, flying over Temploux in Wallonia, Belgium, for a brief period of 2 minutes, during which it covered another 6 nautical miles.
The enroute descent phase commenced 1 mile southeast of Sart-Saint-Laurent in Wallonia, Belgium, where the aircraft began its descent from 9,944 feet to 1,724 feet above sea level, a decrease of 8,220 feet in merely 3 minutes, while continuing to cover a distance of 6 nautical miles. Finally, the aircraft initiated its final approach towards runway 06L at Namur-Suarlée Airfield, aligning itself at a bearing of 55 degrees and a distance of 2 nautical miles from the airfield, at an altitude of 1,100 feet above ground level.
Upon entering the runway, the aircraft experienced gentle threshold weather conditions of 9 degrees Celsius and a gentle 1-knot wind from 68 degrees, resulting in negligible crosswind but a 1-knot headwind. The pilot successfully landed the aircraft on runway 06R, which was 689 meters long, with an optimal threshold height, reaching a touchdown speed of 100 knots and a short touchdown distance of 12 meters.
Despite a touchdown speed of 100 knots being within limits, the aircraft experienced a very high rate of descent, touching down at a rate of -785 feet per minute. Furthermore, the aircraft landed significantly off-center by 17.9 meters from the runway centerline. The total landing distance turned out to be 414 meters, accounting for 60% of the available runway length. Following the landing, the aircraft underwent a slow rollout, deviating from the runway centerline by 14.9 meters.
The entire flight was completed in a total distance of 41 nautical miles, requiring a flying time of 21 minutes. To the pilot's surprise, the aircraft's fuel consumption was zero kilograms, implying no additional fuel was burned during the flight.
Replay this flight in 3D — the full flight path over the terrain with every stage, event and score along the route.
Entering runway 06L at EBST Sint-Truiden / Brustem Airfield, Average speed was 0 kt.
| Score | Description | Start | Profile | End |
| Info |
Average speed 0 kt 0 kt min to max 0 kt |
0 | 0 kt | |
| Info |
Average pitch angle -0.7 ° -0.7 ° min to max -0.7 ° |
-0.7 | -0.7 ° | |
| Info |
Average bank angle 0.1 ° 0.1 ° min to max 0.1 ° |
0.1 | 0.1 ° | |
| Info |
Average g force 1.00 g 1.00 g min to max 1.00 g |
1.00 | 1.00 g | |
| Info |
Battery Master On at 04:34:44 |
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| Info |
Engine 1 Started at 04:34:44 |
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| Info |
Engine 2 Started at 04:34:44 |
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| Info |
Beacon Lights Switched On at 04:34:44 |
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| Info |
Landing Lights Switched On at 04:34:44 |
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| Info |
Navigation Lights Switched On at 04:34:44 |
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| Info |
Strobe Lights Switched On at 04:34:44 |
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| Info |
Taxi Lights Switched On at 04:34:44 |
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| Info |
Landing Gear Down at 04:34:44 |
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| Info |
Parking Brake On at 04:34:44 |
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| Info |
Flaps Position 1 at 04:34:44 |
Departure roll runway 06L at EBST Sint-Truiden / Brustem Airfield. Takeoff distance 893 m 75 % of runway. Liftoff speed was 118 kt. Local weather - Temperature 11 °C. Wind 1 kt at 343 °. Crosswind: 1 kt Headwind: 0 kt.
| Score | Description | Start | Profile | End |
| 100 % |
Takeoff distance 893 m 75 % of runway |
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| 100 % |
Average speed 84 kt 0 kt min to max 118 kt |
0 | 118 kt | |
| 86.92 % |
Runway alignment max 7.46 m 6.64 m left to 0.83 m right |
-0.83 | 6.64 m | |
| 100 % |
Average g force 1.00 g 0.95 g min to max 1.03 g |
1.00 | 1.01 g | |
| 100 % |
Takeoff Bounce |
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| Info |
Average pitch angle 0.9 ° -0.7 ° min to max 6.3 ° |
-0.3 | 6.3 ° | |
| Info |
Average bank angle 0.2 ° 0.0 ° min to max 0.4 ° |
0.1 | 0.1 ° | |
| Info |
Parking Brake Off at 04:34:57 |
Departure climb to 50 ft agl from runway 06L EBST Sint-Truiden / Brustem Airfield.
| Score | Description | Start | Profile | End |
| 100 % |
Heading variation -0.5 ° -0.5 ° min to max -0.4 ° |
-0.4 | -0.5 ° | |
| 100 % |
Average speed 123 kt 119 kt min to max 126 kt |
119 | 126 kt | |
| 100 % |
Average bank angle 0.1 ° 0.0 ° min to max 0.3 ° |
0.1 | 0.3 ° | |
| 100 % |
Average g force 1.11 g 1.02 g min to max 1.18 g |
1.02 | 1.12 g | |
| Info |
Average VSI 551 fpm 146 fpm min to max 968 fpm |
146 | 968 fpm | |
| Info |
Average altitude 13 ft agl 0 ft agl min to max 43 ft agl |
0 | 43 ft agl | |
| Info |
Average pitch angle 9.4 ° 6.4 ° min to max 12.7 ° |
6.4 | 12.7 ° | |
| Info |
Landing Gear Up at 04:35:26 |
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| Info |
Flaps Fully Retracted at 04:35:27 |
Departure climb to 400 ft agl from 06L EBST Sint-Truiden / Brustem Airfield.
| Score | Description | Start | Profile | End |
| 100 % |
Heading variation -0.6 ° -0.8 ° min to max -0.5 ° |
-0.5 | -0.8 ° | |
| 100 % |
Average speed 126 kt 122 kt min to max 126 kt |
126 | 122 kt | |
| 100 % |
Average bank angle 0.4 ° 0.3 ° min to max 0.9 ° |
0.3 | 0.9 ° | |
| 100 % |
Average g force 1.09 g 0.97 g min to max 1.13 g |
1.13 | 0.98 g | |
| Info |
Average VSI 1,419 fpm 980 fpm min to max 2,268 fpm |
980 | 2,268 fpm | |
| Info |
Average altitude 105 ft agl 44 ft agl min to max 377 ft agl |
44 | 377 ft agl | |
| Info |
Average pitch angle 14.8 ° 12.8 ° min to max 19.7 ° |
12.8 | 19.7 ° |
Departure climb to 1,000 ft agl from 06L EBST Sint-Truiden / Brustem Airfield.
| Score | Description | Start | Profile | End |
| 100 % |
Heading variation -1.5 ° -2.3 ° min to max -1.0 ° |
-1.0 | -2.3 ° | |
| 100 % |
Average speed 120 kt 118 kt min to max 126 kt |
121 | 126 kt | |
| 98.71 % |
Average bank angle 1.7 ° 1.0 ° min to max 2.5 ° |
1.0 | 2.5 ° | |
| 100 % |
Average g force 0.93 g 0.88 g min to max 0.98 g |
0.94 | 0.98 g | |
| 100 % |
Landing gear up |
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| Info |
Average VSI 1,695 fpm 1,283 fpm min to max 2,301 fpm |
2,301 | 1,324 fpm | |
| Info |
Average altitude 733 ft agl 415 ft agl min to max 969 ft agl |
415 | 969 ft agl | |
| Info |
Average pitch angle 16.2 ° 13.7 ° min to max 19.0 ° |
18.7 | 13.7 ° |
Enroute climb started 1 mile south west of Zepperen (Flanders, Belgium). Climbing from 1,222 ft asl to 9,867 ft asl, an increase of 8,646 ft in 15 minutes and covering 26 nm.
| Score | Description | Start | Profile | End |
| 100 % |
Average speed 212 kt 120 kt min to max 227 kt |
127 | 223 kt | |
| 100 % |
Average bank angle 16.4 ° 0.0 ° min to max 27.3 ° |
2.6 | 19.7 ° | |
| 100 % |
Average g force 1.05 g 0.81 g min to max 1.14 g |
0.98 | 1.00 g | |
| Info |
Average VSI 527 fpm -308 fpm min to max 2,882 fpm |
1,354 | 436 fpm | |
| Info |
Average altitude 5,939 ft asl 1,222 ft asl min to max 9,867 ft asl |
1,222 | 9,867 ft asl | |
| Info |
Average pitch angle 1.3 ° -1.7 ° min to max 19.1 ° |
13.7 | 0.0 ° | |
| Info |
Turn coordination 0 0 min to max 0 |
0 | 0 | |
| Info |
Autopilot Master Switched On at 04:36:40 |
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| Info |
Autopilot Vertical Hold Activated at 04:36:40 |
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| Info |
Autopilot Altitude Hold Activated at 04:36:47 |
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| Info |
Autopilot Vertical Hold Deactivated at 04:36:47 |
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| Info |
Autopilot Nav1 Lock Activated at 04:36:51 |
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| Info |
Autopilot Master Switched Off at 04:38:19 |
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| Info |
Autopilot Nav1 Lock Deactivated at 04:38:19 |
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| Info |
Autopilot Altitude Hold Deactivated at 04:38:19 |
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| Info |
Autopilot Nav1 Lock Activated at 04:38:24 |
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| Info |
Autopilot Flight Director Activated at 04:38:24 |
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| Info |
Autopilot Vertical Hold Activated at 04:38:24 |
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| Info |
Autopilot Master Switched On at 04:38:35 |
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| Info |
Autopilot Master Switched Off at 04:46:46 |
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| Info |
Autopilot Master Switched On at 04:47:07 |
Enroute level cruise started overhead Temploux (Wallonia, Belgium) and lasted 2 minutes, covering 6 nm.
| Score | Description | Start | Profile | End |
| 100 % |
Average altitude 10,260 ft asl 9,872 ft asl min to max 10,523 ft asl |
9,872 | 10,009 ft asl | |
| 100 % |
Average speed 225 kt 221 kt min to max 239 kt |
223 | 239 kt | |
| 72.28 % |
Average bank angle 26.2 ° 0.3 ° min to max 53.9 ° |
21.9 | 53.9 ° | |
| 100 % |
Average g force 1.10 g 0.96 g min to max 1.28 g |
1.02 | 1.28 g | |
| Info |
Turn coordination 0 0 min to max 0 |
0 | 0 | |
| Info |
Average pitch angle -0.9 ° -6.4 ° min to max 1.3 ° |
0.0 | -6.4 ° | |
| Info |
Autopilot Master Switched Off at 04:52:10 |
Enroute descent started 1 mile south east of Sart-Saint-Laurent (Wallonia, Belgium). Descent from 9,944 ft asl to 1,724 ft asl, a decrease of 8,220 ft in 3 minutes and covering 6 nm.
| Score | Description | Start | Profile | End |
| 94.42 % |
Average speed 173 kt 131 kt min to max 274 kt |
241 | 178 kt | |
| 53.32 % |
Average bank angle 27.4 ° 2.3 ° min to max 63.3 ° |
55.3 | 2.3 ° | |
| 91.71 % |
Average g force 1.16 g 0.21 g min to max 1.73 g |
1.34 | 1.06 g | |
| Info |
Average VSI -2,855 fpm -8,395 fpm min to max 3,420 fpm |
-3,832 | -2,158 fpm | |
| Info |
Average altitude 6,147 ft asl 1,724 ft asl min to max 9,944 ft asl |
9,944 | 1,724 ft asl | |
| Info |
Average pitch angle -6.7 ° -18.5 ° min to max 7.8 ° |
-6.8 | -8.3 ° | |
| Info |
Turn coordination 0 0 min to max 0 |
0 | 0 | |
| Info |
Flaps Position 2 at 04:53:00 |
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| Info |
Landing Gear Down at 04:53:35 |
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| Info |
Landing Gear Up at 04:54:29 |
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| Info |
Landing Gear Down at 04:54:30 |
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| Info |
Flaps Position 4 at 04:55:31 |
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| Info |
Flaps Position 5 at 04:55:37 |
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| Info |
Flaps Position 6 at 04:55:38 |
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| Info |
Exceeded 250 kn below 10000 ft at 04:52:45 |
Approaching runway 06R at EBNM Namur-Suarlée Airfield from 3 nm to 2 nm. Descent from 1,100 ft agl to 788 ft agl. A decrease of 312 ft in 8 seconds.
| Score | Description | Start | Profile | End |
| 66.54 % |
Approach angle 5.1 ° 4.8 ° min to max 5.4 ° Target 3.0 ° |
5.4 | 4.8 ° | |
| 100 % |
Average speed 167 kt 159 kt min to max 175 kt |
175 | 159 kt | |
| 100 % |
Heading variation -0.0 ° -0.4 ° min to max 0.5 ° |
-0.4 | 0.5 ° | |
| 87.65 % |
Average bank angle 7.6 ° 7.6 ° min to max 7.6 ° |
7.6 | 7.6 ° | |
| 100 % |
Average g force 0.96 g 0.86 g min to max 1.08 g |
0.88 | 1.08 g | |
| Info |
Average VSI -2,278 fpm -2,491 fpm min to max -1,936 fpm |
-1,936 | -2,231 fpm | |
| Info |
Average altitude 945 ft agl 788 ft agl min to max 1,100 ft agl |
1,100 | 788 ft agl | |
| Info |
Average pitch angle -9.7 ° -10.7 ° min to max -8.0 ° |
-9.9 | -8.0 ° |
Approaching runway 06R at EBNM Namur-Suarlée Airfield from 2 nm to 1 nm. Descent from 724 ft agl to 376 ft agl. A decrease of 348 ft in 12 seconds.
| Score | Description | Start | Profile | End |
| 66.52 % |
Approach angle 4.1 ° 3.6 ° min to max 4.7 ° Target 3.0 ° |
4.7 | 3.6 ° | |
| 100 % |
Average speed 144 kt 133 kt min to max 154 kt |
154 | 133 kt | |
| 100 % |
Heading variation 1.0 ° 0.8 ° min to max 1.5 ° |
0.8 | 1.5 ° | |
| 93.16 % |
Average bank angle 3.3 ° 1.1 ° min to max 5.5 ° |
5.5 | 1.1 ° | |
| 100 % |
Average g force 1.02 g 0.87 g min to max 1.08 g |
1.06 | 1.06 g | |
| Info |
Average VSI -1,777 fpm -2,042 fpm min to max -1,236 fpm |
-1,924 | -1,236 fpm | |
| Info |
Average altitude 539 ft agl 376 ft agl min to max 724 ft agl |
724 | 376 ft agl | |
| Info |
Average pitch angle -6.4 ° -8.5 ° min to max -2.8 ° |
-6.8 | -2.8 ° |
Approaching runway 06R at EBNM Namur-Suarlée Airfield from 1 nm to 0 nm. Descent from 359 ft agl to -1 ft agl. A decrease of 360 ft in 24 seconds.
| Score | Description | Start | Profile | End |
| 100 % |
Approach angle 2.2 ° 1.1 ° min to max 3.6 ° Target 3.0 ° |
3.6 | 1.1 ° | |
| 100 % |
Average speed 111 kt 101 kt min to max 131 kt |
131 | 101 kt | |
| 29.2 % |
Heading variation 2.0 ° 1.5 ° min to max 2.3 ° |
1.5 | 1.6 ° | |
| 88.41 % |
Average bank angle 2.2 ° 0.0 ° min to max 7.3 ° |
5.7 | 3.8 ° | |
| 100 % |
Average g force 1.00 g 0.94 g min to max 1.08 g |
1.04 | 0.96 g | |
| Info |
Average VSI -756 fpm -1,164 fpm min to max -575 fpm |
-1,105 | -761 fpm | |
| Info |
Average altitude 64 ft agl -1 ft agl min to max 359 ft agl |
359 | -1 ft agl | |
| Info |
Average pitch angle 1.6 ° -2.7 ° min to max 3.4 ° |
-2.4 | 3.4 ° |
Landing on runway 06R at EBNM Namur-Suarlée Airfield, runway length 689 m. Good threshold height. Threshold speed was 101 kt.
| Score | Description | Start | Profile | End |
| 100 % |
Average speed 101 kt 100 kt min to max 101 kt |
101 | 100 kt | |
| 100 % |
Target 37 ft agl |
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| 28.67 % |
Landing and flare profile |
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| 58 % |
Heading variation 1.5 ° 1.5 ° min to max 1.6 ° |
1.6 | 1.5 ° | |
| 93.52 % |
Average bank angle 4.2 ° 4.0 ° min to max 4.5 ° |
4.0 | 4.5 ° | |
| 100 % |
Average g force 0.97 g 0.96 g min to max 0.97 g |
0.96 | 0.97 g | |
| Info |
Average speed 101 kt 100 kt min to max 101 kt |
101 | 100 kt | |
| Info |
Average VSI -776 fpm -785 fpm min to max -767 fpm |
-767 | -785 fpm | |
| Info |
Average altitude 5 ft agl 4 ft agl min to max 7 ft agl |
7 | 4 ft agl | |
| Info |
Average pitch angle 3.6 ° 3.5 ° min to max 3.7 ° |
3.5 | 3.7 ° |
Touchdown distance was good at 12 m. Touchdown speed 100 kt. Touchdown rate was very heavy at -785 fpm. Runway touchdown position was significantly misaligned by 17.9 m from centreline. Local weather - Temperature 9 °C. Wind 1 kt at 68 °. Crosswind: 0 kt Headwind: 1 kt.
| Score | Description | Start | Profile | End |
| 76.26 % |
Touchdown VSI was -785 fpm. |
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| 100 % |
Touchdown distance was 12 m Target 382 m |
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| 100 % |
Average speed 99 kt 98 kt min to max 100 kt |
100 | 98 kt | |
| 45.93 % |
Runway alignment max 17.88 m 16.41 m left |
17.88 | 15.16 m | |
| 68.9 % |
Average bank angle 1.5 ° 0.1 ° min to max 4.5 ° |
4.5 | 0.4 ° | |
| 93.43 % |
Average g force 1.46 g 0.97 g min to max 1.73 g |
0.97 | 1.30 g | |
| 100 % |
Landing Bounce |
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| Info |
Average speed 99 kt 98 kt min to max 100 kt |
100 | 98 kt | |
| Info |
Average pitch angle 4.3 ° 3.7 ° min to max 5.3 ° |
3.7 | 5.3 ° |
Total landing distance 414 m, 60 % of runway. Runway rollout alignment was slightly misaligned by 14.9 m from centreline.
| Score | Description | Start | Profile | End |
| 100 % |
Landing distance 414 m 60 % of runway. |
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| 56.68 % |
Runway alignment max 14.93 m 14.93 m left to 0.00 m left |
14.93 | 0.22 m | |
| 100 % |
Average g force 1.02 g 0.97 g min to max 1.23 g |
1.23 | 0.99 g | |
| Info |
Average speed 90 kt 52 kt min to max 97 kt |
97 | 52 kt | |
| Info |
Average pitch angle 3.5 ° -1.3 ° min to max 6.1 ° |
5.6 | -1.3 ° | |
| Info |
Average bank angle 0.2 ° 0.0 ° min to max 0.6 ° |
0.3 | 0.4 ° |
Exiting runway, average speed 24 kt
| Score | Description | Start | Profile | End |
| Info |
Average speed 22 kt 11 kt min to max 44 kt |
44 | 11 kt | |
| Info |
Average pitch angle -0.9 ° -2.7 ° min to max 0.4 ° |
-1.3 | -2.2 ° | |
| Info |
Average bank angle 0.6 ° 0.0 ° min to max 1.8 ° |
0.4 | 1.7 ° | |
| Info |
Average g force 1.00 g 0.98 g min to max 1.01 g |
1.00 | 1.01 g | |
| Info |
Parking Brake On at 04:57:10 |
A comprehensive report on the landing of the YS-11 aircraft has been submitted with a final score of 81.3%. The aircraft was approaching the runway 06R at EBNM Namur-Suarlée Airfield from the southwest, aligned with a heading of 55.0° at 2 nautical miles and an altitude of 1,100 feet above ground level.
As the aircraft touched down on the runway, it was observed that the touchdown speed was 100 kt, meeting the threshold speed of 101 kt set for the landing. The touchdown distance was also satisfactory, measuring 12 meters. However, there were concerns with the touchdown rate, which was quite heavy, coming in at -785 feet per minute, indicating a possible risk of excessive deceleration.
Another significant issue observed during the landing was the runway touchdown position, which deviated from the centerline by 17.9 meters, indicating a lack of proper alignment prior to touchdown. Local weather conditions may have contributed to this deviation, as temperatures were near freezing at 9 °C and winds were light and variable, with a gentle 1 kt breeze out of 68°.
In terms of overall landing performance, the total landing distance was 414 meters, which translates to approximately 60% of the available runway length of 689 meters. The rollout alignment from the centerline was also slightly misaligned, by 14.9 meters, which indicates that the pilot may not have fully recovered control after touchdown, leading to a slight drift off the designated centerline.
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