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MY FS FLIGHTS
Flight Score
Arrival
Reduce power earlier on the approach so speed is back to 122 kt by the stabilisation gate, not carried into the flare.
What happened: The approach was still fast at the stabilisation gate, crossing the threshold at 98 kt against a VREF of 122 kt, and the flare then held the aircraft off high, arresting the sink early at 15 ft instead of letting it continue down. Carrying excess speed into the flare usually carries the touchdown into a high hold-off rather than a timely let-down.
Watch for: Airspeed indicator against 122 kt at the stabilisation gate and through to the threshold.
Every knot above Vref is stored kinetic energy, and energy stored at the threshold must be dissipated in ground effect before the aeroplane will stop flying. Because kinetic energy scales with the square of speed, the excess you must dissipate grows fast. At a 45-knot approach, five knots hot is over a tenth more speed and roughly a quarter more energy to get rid of in ground effect. This is why the fix is never in the flare. It was decided three miles earlier, on final, at the airspeed indicator.
Read more in VRef ExplainedStart to finish · 14 stages, 12 scored
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The threshold, the flare and the hold-off. The approach that led to it is the stabilisation gates below.
Two stabilised approach gates, each with six checks, where the approach path is 1,000 ft and 500 ft above the runway. They are the approach's score: the checks passed out of the checks that ran.
At the 1,000 ft gate: speed 40 kt FAST on the reference speed of 122 kt.
The approach, gate by gate
Side view — the last 5,000 ft of the approach.
Plan view — the first 5,000 ft of the 8,247 ft runway, to the same scale as the side view.
The 274 ft touchdown sits inside the full-score zone. The arrival was smooth.
The rest of the report
The Cessna 750 Citation X taxied from the parking area to the departure runway in 2 minutes, covering less than 1 nm before line-up.
The aircraft departed runway 27R at KPTK Oakland County International Airport, using a takeoff roll of 2,482 ft (44 % of the runway) and achieving liftoff at 134 kt. Ambient conditions were 62 °F with a wind of 2 kt from 270°, providing a 2 kt headwind and no crosswind.
Climb commenced over the 41D VOR in Michigan, ascending from 1,931 ft asl to 35,010 ft asl-a gain of 33,079 ft-in 14 minutes while covering 87 nm.
Cruise began 2 mi north-east of the C67 waypoint near Lake Pleasant, Angola, Indiana, and was maintained for 49 minutes, during which 428 nm were flown.
Descent was initiated 12 mi south-east of Alton, Missouri, with the aircraft descending from 34,996 ft asl to 1,558 ft asl, a loss of 33,438 ft in 20 minutes and traversing 120 nm.
The final approach to runway 22L at KLIT Bill & Hillary Clinton National Airport/Adams Field was flown from the north-east on a heading of 226.0° at 4 nm and 1,279 ft agl.
Landing on runway 22L was executed with a threshold speed of 98 kt, touchdown occurring at 269 ft down the runway and at 97 kt. The aircraft touched down with a firm rate of minus 319 fpm and was offset by 13 ft from the centreline. Local weather reported 61 °F, wind 3 kt from 269°, a 2 kt headwind and a 2 kt crosswind. Total landing distance measured 1,741 ft, representing 21 % of the runway length.
Runway rollout alignment was recorded as very good, completing the landing phase without deviation.
In total, the flight covered 641 nm, required 89 minutes of elapsed time, and consumed 294 lbs of fuel.
The Cessna 750 Citation X established a final approach to runway 22L at KLIT Bill & Hillary Clinton National Airport/Adams Field from the north-east, tracking a heading of 226.0° at 4 nm and 1,279 ft agl. Local conditions were temperature 61 °F, wind 3 kt from 269°, providing a 2-kt crosswind component and a 2-kt headwind component.
At threshold the aircraft presented a good threshold height and the speed was a little below target at 98 kt, indicating a slight undershoot of the desired reference speed during the flare.
Touchdown occurred 269 ft down the runway at a speed of 97 kt, with a firm rate of descent measured at minus 319 fpm. The touchdown point was slightly misaligned by 13 ft from the centreline.
The rollout covered a total landing distance of 1,741 ft, representing 21 % of the 8,247-ft runway, and runway rollout alignment was very good.
With a score of 97.8 % the landing was strong; fine-tuning the approach speed to meet the exact target and correcting the slight centreline offset at touchdown will further tighten performance.
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