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MY FS FLIGHTS
Flight Score
Avoid steep turns at low altitude
Below a thousand feet the aeroplane is slow, heavy and close to the ground. A steep turn loses lift, raises the stall speed and flattens the climb just when the gradient matters most. A normal turn on course is a rate one — fifteen degrees or so, twenty-five at the outside, this penalty is to acknowledge when a turn has stopped being a turn and become a manoeuvre.
Read more in Improve Your Take-OffsStart to finish · 13 stages, 11 in the score
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From brake release to the end of the climb, against time, then the takeoff point by point.
Lifted off at 78 kt with 6.0° of pitch.
Two traces from brake release: the airspeed on top, and below it the pitch, which is how far the nose is above the horizon. The figure at liftoff is the pitch then. The shaded stretch is Climb 3, the part of the climb scored on holding the climb speed.
The takeoff, point by point
Side view from the start of the roll to the end of Climb 3 at 943 ft. The distance scale changes past the runway end.
Reached 35 ft with 338 m of runway left; then climbing at 1,240 fpm on average to 943 ft.
The takeoff from the side: the height above the runway against the distance along it. The numbers along the runway are the speeds reached at each point. Lifting off in the amber last quarter of the runway costs marks for the roll length. The shaded stretch is Climb 3, scored on its average speed against the target.
Plan view the roll down the 1,027 m runway.
Rolled from 98 m in, drifted left of the centreline, 5.7 m at the widest, and lifted off 5.3 m left. Airborne 49 % of the way down the runway, before the 75 % line.
The roll from above, with your left at the top. The line is where the wheels went, and "widest" is the furthest you drifted off the centreline. Lifting off before the amber 75 % line gets full marks for the roll length. The arrow beside the runway is the crosswind, pointing the way the air was moving, so it pushed the aircraft that way.
The final from 4 nm.
Profile height against the 3° glideslope, with its 2° band in green.
High from 1.3 nm, where the final began, to 0.9 nm (up to 440 ft over), then back on it to the threshold.
Your height above the runway against the distance still to go. The glideslope is the steady descent path to the aiming point, 305 m past the threshold: 3° here, which is about 320 ft for every nautical mile out, crossing the threshold at about 50 ft. The row under the distances is the height it puts you at. Inside the green band your path is drawn green; outside it, amber.
Plan distance off the extended centreline, your left at the top, with the 1° band. Sideways distances are drawn 4× larger than distances along the final.
Inside the 1° band all the way from 1.3 nm, never more than 89 m off the centreline.
Looking down from above, flying left to right towards the runway: up the page is left of the centreline, down is right. Sideways distances are stretched so that small drifts show, so a line that looks wild here may be only a few tens of feet. The labels are how far off you were at each distance, amber when outside the band.
Speed against the approach speed. The green band runs from 5 kt slow to 78 kt fast at the 1,000 ft gate, closing to 48 at 500 ft and 10 at the threshold.
Inside the speed band all the way, between −7 kt and +40 kt on the approach speed of 77 kt.
Your indicated airspeed down the final, against the approach speed for this aircraft at its landing weight. The band allows 5 kt slow and more on the fast side further out, closing as you get lower, because the speed is expected to come off on the way down. The figures are knots above (+) or below (−) the approach speed.
Over the threshold
Touchdown
Little crosswind (1 kt): nothing to correct for. Touched down with the nose 4° left of the track, wings level.
Wind 270° at 2 kt · 0 kt head · 1 kt across
The wind is the one recorded at the landing, split along the runway (headwind or tailwind) and across it. To hold the centreline in a crosswind the nose points a little into wind - the crab - and is straightened with rudder just before the wheels touch, often with the into-wind wing lowered to stop the drift. These are the nose against the direction you were actually moving, and the wings, at the moment of touchdown. Shown for reading; not marked.
From 65 kt at touchdown to taxi speed (30 kt) in 7 s, an average deceleration of 0.28 g.
Your ground speed from the moment the wheels touched until you were down to taxi speed, against the distance rolled. A steep line is hard braking, a shallow one a long, gentle roll. For scale, an airliner's lowest autobrake setting decelerates at about 0.15 g, a medium one about 0.3 g. Shown for reading; not marked.
Side view — the last 1,027 m of the approach.
Crossed the threshold at 9 ft, 41 ft below the 50 ft target. Touched down 130 m in, 175 m short of the ideal 305 m.
The last stretch of the approach and the touchdown, from the side. The height is stretched so that the last few feet show: 80 ft top to bottom, against 1,027 m across. The dashed line is the ideal, 50 ft over the threshold and down 305 m in. The flare ring is where you began raising the nose, and "descent slowed" is where the sink came off; the figures beside them are the sink rate, pitch and speed at that point.
Sink and pitch — through the flare, lined up with the side view.
The sink went from 210 fpm at 8 ft to 70 fpm at touchdown. The nose came up 1.0° on the way down.
Lined up with the side view above, so a point on one sits under the same point of the other. On top, how fast you were coming down: 0 is level, and −600 is 600 ft a minute down. Below, the pitch. In a flare the nose comes up and the descent slows towards 0. The figure at the touchdown line is your touchdown rate.
Plan view — the full 1,027 m runway, to the same scale as the side view.
Touched down 2.1 m right of the centreline, and stayed within 2.3 m of it down the rollout.
The runway from above, with your left at the top. Touching down inside the green bracket scores full marks for the distance. The shaded part is the rollout, up to where it ended. The arrow beside the runway is the crosswind, pointing the way the air was moving, so it pushed the aircraft that way.
The 130 m touchdown sits inside the full-score zone. The arrival was smooth.
The rest of the report
The Pesim FPV Drone Racer took off from runway 34 at KFHR Friday Harbor Airport, covering a distance of 416 meters, which accounted for 41% of the runway. The liftoff speed was 79 knots, and the local weather conditions at the time of takeoff were characterized by a temperature of 16 degrees Celsius and a wind speed of 2 knots from a direction of 270 degrees. This resulted in a negligible crosswind and headwind.
As the drone climbed away from the airport, it began its enroute climb, which started overhead Friday Harbor, Washington. The drone ascended from an altitude of 1,058 feet above sea level to 1,349 feet, an increase of 292 feet, in less than a minute and covered a distance of less than a nautical mile. This rapid climb was followed by an enroute level cruise, which began overhead 1WA9 Friday West Airport, also located in Friday Harbor. The cruise lasted for 3 minutes and covered a distance of 3 nautical miles.
The final approach to runway 34 at KFHR Friday Harbor Airport was initiated from the south, with the drone heading in a direction of 357.0 degrees at an altitude of 380 feet above ground level and a distance of 1 nautical mile from the runway. The landing was executed with a threshold speed that was slightly below the target speed of 70 knots, but the touchdown distance was good at 126 meters, and the touchdown speed was also satisfactory at 65 knots. The touchdown rate was excellent at -74 feet per minute, and the runway touchdown alignment was very good.
The total landing distance was 265 meters, which accounted for 26% of the runway. The runway rollout alignment was perfect, indicating a smooth and controlled descent. After landing, the drone was taxied to the parking area, which took approximately 1 minute and covered a distance of less than 1 nautical mile. The total flight distance was 6 nautical miles, and the flight duration was 9 minutes. The drone used 2 kilograms of fuel during the flight.
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