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KACK
Nantucket, United States
Runway 15
Elevation43 ft asl
Weight929 kg
Fuel64 kg
Wind270° · 2 kn · 1 kn cross

Flight Score

94.24 %
KACK
Nantucket, United States
Runway 06
Elevation26 ft asl
Weight924 kg
Fuel58 kg
Wind270° · 2 kn · 1 kn cross
25 Jul 2024 0:10 8 nm Piper PA-24-250 Comanche 6 kg
Departure Score
93.45 %
Enroute Score
100.00 %
Arrival Score
88.03 %

What went well

Touched down at -96 fpm — a soft arrival
Touchdown 201 m in — inside the full-score zone
Threshold crossed at 17 ft and 72 kt — both inside band

What held you back

Arrival Taxi — peak speed in a turn 34 kt at 0 %, peak taxi speed 34 kt at 43 %, −3.48 points
Departure Climb 3 — gear not retracted; Landing gear up at 0 %, Heading variation 3.4 ° at 65 %, −1.22 points
Departure Roll — Landing Lights at 0 %, g force 0.02 to 0.98 g at 86 %, −0.48 points

Next time

Maintain a smooth pitch

See Departure Roll

When Vr arrives, an abrupt near-full-scale pull, pitch overshoots, a push, and an oscillation through the first 200 ft. It feels like “this aircraft is twitchy” but the actual fault happened before liftoff. The pitch trace needs to show a clean ramp during liftoff.

Read more in Improve Your Take-Offs

Start to finish · 16 stages, 13 in the score

The flight story

The approach before the go-around was abandoned. Its marks are shown, but only the approach that landed counts.

Departure One segment per stage, in flight order — colour is the score band. Drag the bar to move along the flight, or click a stage card to open its detail. Arrival
Departure Taxi 100.00Taxiing from the parking to the runway took 4 minutes and covered less than 1 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 14 kn0 kn min to max 21 kn 0 10 kn
100 % Average speed turning corners 11 knmax 13 kn 0 0 kn
100 % Average g force 0.93 g0.80 g min to max 1.04 g 0.97 1.04 g
Info Average pitch angle 3.6 °2.3 ° min to max 4.3 ° 2.9 3.8 °
Info Average bank angle 0.2 °0.0 ° min to max 1.0 ° 0.2 0.2 °

Events

Info Flaps Position 3 3 ft agl · 1 kt
Info Flaps Fully Retracted 3 ft agl · 1 kt
Info Parking Brake Off 3 ft agl · 2 kt
Departure Runway Entry Entering runway 15 at KACK Nantucket Memorial, Average speed was 0 kn.
ScoreDescriptionStartProfileEnd
Info Average speed 7 kn3 kn min to max 9 kn 9 3 kn
Info Average pitch angle 3.4 °3.1 ° min to max 3.8 ° 3.5 3.2 °
Info Average bank angle 0.1 °0.0 ° min to max 0.3 ° 0.1 0.1 °
Info Average g force 0.96 g0.87 g min to max 1.08 g 1.01 1.03 g
Departure Roll 92.84Departure roll runway 15 at KACK Nantucket Memorial. Takeoff distance 103 m 8 % of runway. Liftoff speed was 72 kn. Local weather - Temperature 15 °C. Wind 2 kn at 270 °. Crosswind: 1 kn Tailwind: 1 kn.
ScoreDescriptionStartProfileEnd
100 % Takeoff distance 103 m8 % of runway
100 % Liftoff speed was 72 knTarget 70 kn
96 % Runway alignment max 7.74 m3.61 m left to 4.14 m right -4.14 -1.15 m
86 % Average g force 0.34 g0.02 g min to max 0.98 g 0.98 0.02 g
100 % Takeoff Bounce
Info Average pitch angle 2.5 °1.5 ° min to max 3.6 ° 3.4 2.4 °
Info Average bank angle 2.3 °0.0 ° min to max 6.8 ° 0.0 6.7 °

Events

Fail Landing Lights
Info Flaps Position 3 3 ft agl · 10 kt
Departure Climb 1 95.50Departure climb to 50 ft agl from runway 15 KACK Nantucket Memorial.
ScoreDescriptionStartProfileEnd
100 % Heading variation -0.2 °-0.7 ° min to max 0.2 ° 0.2 -0.7 °
100 % Average speed 80 kn73 kn min to max 85 kn 73 85 kn
88 % Average bank angle 2.5 °0.0 ° min to max 6.7 ° 6.7 2.8 °
86 % Average g force 0.98 g0.01 g min to max 1.24 g 0.01 0.98 g
Info Average VSI 496 ft/m362 ft/m min to max 635 ft/m 362 635 ft/m
Info Average altitude 20 ft agl0 ft agl min to max 45 ft agl 0 45 ft agl
Info Average pitch angle 4.9 °2.8 ° min to max 5.9 ° 2.8 5.9 °
Departure Climb 2 97.29Departure climb to 400 ft agl from 15 KACK Nantucket Memorial.
ScoreDescriptionStartProfileEnd
100 % Heading variation -0.7 °-0.8 ° min to max 0.8 ° -0.7 0.8 °
100 % Average speed 87 kn85 kn min to max 93 kn 85 90 kn
89 % Average bank angle 3.1 °0.1 ° min to max 6.1 ° 2.9 6.1 °
100 % Average g force 0.97 g0.87 g min to max 1.01 g 1.00 0.95 g
Info Average VSI 883 ft/m642 ft/m min to max 1,517 ft/m 642 1,517 ft/m
Info Average altitude 108 ft agl46 ft agl min to max 388 ft agl 46 388 ft agl
Info Average pitch angle 7.1 °5.4 ° min to max 9.8 ° 6.0 9.8 °
Departure Climb 3 81.65Departure climb to 1,000 ft agl from 15 KACK Nantucket Memorial.
ScoreDescriptionStartProfileEnd
65 % Heading variation 3.4 °1.3 ° min to max 6.1 ° 1.3 6.1 °
100 % Average speed 94 kn89 kn min to max 103 kn 89 103 kn
93 % Average bank angle 2.2 °0.0 ° min to max 4.7 ° 4.7 0.0 °
100 % Average g force 0.92 g0.80 g min to max 1.09 g 0.82 0.93 g
0 % Landing gear up
Info Average VSI 844 ft/m-9 ft/m min to max 1,545 ft/m 1,545 861 ft/m
Info Average altitude 576 ft agl414 ft agl min to max 688 ft agl 414 688 ft agl
Info Average pitch angle 4.7 °-1.0 ° min to max 8.7 ° 8.7 4.4 °

Events

Fail Gear Not Retracted
Enroute Climb 100.00Enroute climb started 1 mile south east of KACK Nantucket Memorial Nantucket (Massachusetts, United States). Climbing from 752 ft asl to 1,720 ft asl, an increase of 968 ft in 1 minutes and covering 2 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 106 kn103 kn min to max 112 kn 103 103 kn
100 % Average bank angle 12.1 °0.1 ° min to max 29.9 ° 0.6 0.4 °
100 % Average g force 0.97 g0.89 g min to max 1.10 g 0.91 0.90 g
Info Average VSI 770 ft/m243 ft/m min to max 1,227 ft/m 912 523 ft/m
Info Average altitude 1,259 ft asl752 ft asl min to max 1,720 ft asl 752 1,720 ft asl
Info Average pitch angle 3.6 °0.1 ° min to max 6.3 ° 4.5 2.4 °
Info Turn coordination 00 min to max 0 0 0
Enroute Level 100.00Enroute level cruise started 1 mile south west of KACK Nantucket Memorial Nantucket (Massachusetts, United States) and lasted 1 minutes, covering 2 nm.
ScoreDescriptionStartProfileEnd
100 % Average altitude 1,826 ft asl1,734 ft asl min to max 1,925 ft asl 1,734 1,824 ft asl
100 % Average speed 106 kn102 kn min to max 111 kn 102 111 kn
100 % Average bank angle 4.5 °0.0 ° min to max 32.1 ° 1.2 32.1 °
100 % Average g force 0.93 g0.89 g min to max 0.96 g 0.90 0.94 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 0.2 °-7.7 ° min to max 1.8 ° 1.6 -7.7 °
Arrival 96.69Not counted in the flight scoreArrival started 1 mile south west of KACK Nantucket Memorial Nantucket (Massachusetts, United States).
ScoreDescriptionStartProfileEnd
100 % Average speed 97 kn75 kn min to max 116 kn 111 95 kn
93 % Average bank angle 10.5 °0.2 ° min to max 33.3 ° 33.3 2.4 °
97 % Average g force 0.95 g0.77 g min to max 1.59 g 0.89 0.92 g
Info Average VSI -774 ft/m-3,195 ft/m min to max 1,109 ft/m -1,544 -275 ft/m
Info Average altitude 612 ft asl272 ft asl min to max 1,796 ft asl 1,796 272 ft asl
Info Average pitch angle -3.1 °-16.2 ° min to max 10.0 ° -9.1 -1.0 °
Info Turn coordination 00 min to max 0 0 0
Arrival Final 2 100.00Approaching runway 06 at KACK Nantucket Memorial from 2 nm to 1 nm. Descent from 241 ft agl to 223 ft agl. A decrease of 19 ft in 3 seconds.
ScoreDescriptionStartProfileEnd
100 % Approach angle 2.0 °2.0 ° min to max 2.0 °Target 3.0 ° 2.0 2.0 °
100 % Average speed 93 kn92 kn min to max 94 kn 94 92 kn
100 % Heading variation -0.0 °-0.0 ° min to max -0.0 ° -0.0 -0.0 °
100 % Average bank angle 2.4 °2.4 ° min to max 2.5 ° 2.4 2.4 °
100 % Average g force 0.90 g0.89 g min to max 0.92 g 0.92 0.89 g
Info Average VSI -333 ft/m-410 ft/m min to max -277 ft/m -277 -410 ft/m
Info Average altitude 233 ft agl223 ft agl min to max 241 ft agl 241 223 ft agl
Info Average pitch angle -1.6 °-2.3 ° min to max -1.1 ° -1.1 -2.3 °
11.251.51.752150200250300350400Distance to Touchdown NMApproach Height ft11.251.51.752-50-38-25-13013253850Distance to Touchdown NMApproach Runway Alignment m
Arrival Final 1 99.81Approaching runway 06 at KACK Nantucket Memorial from 1 nm to 0 nm. Descent from 214 ft agl to 22 ft agl. A decrease of 193 ft in 33 seconds.
ScoreDescriptionStartProfileEnd
100 % Approach angle 1.7 °1.0 ° min to max 2.2 °Target 3.0 ° 2.0 1.0 °
100 % Average speed 76 kn72 kn min to max 92 kn 92 72 kn
100 % Heading variation -0.1 °-0.2 ° min to max 0.3 ° -0.0 -0.2 °
99 % Average bank angle 1.4 °0.0 ° min to max 3.6 ° 2.4 2.5 °
100 % Average g force 0.94 g0.83 g min to max 1.08 g 0.97 0.91 g
Info Average VSI -385 ft/m-558 ft/m min to max -158 ft/m -477 -308 ft/m
Info Average altitude 68 ft agl22 ft agl min to max 214 ft agl 214 22 ft agl
Info Average pitch angle -0.2 °-2.4 ° min to max 1.6 ° -1.9 0.4 °
00.250.50.751050100150200250300350Distance to Touchdown NMApproach Height ft00.250.50.751-40-30-20-10010203040Distance to Touchdown NMApproach Runway Alignment m
Arrival Landing 99.07Landing on runway 06 at KACK Nantucket Memorial, runway length 1,750 m. Good threshold height. Threshold speed was good at 72 kn.
ScoreDescriptionStartProfileEnd
100 % Threshold speed was good at 72 kn. Target 70 kn
97 % Landing and flare profile
100 % Heading variation -0.2 °-0.2 ° min to max -0.2 ° -0.2 -0.2 °
99 % Average bank angle 1.8 °0.0 ° min to max 2.5 ° 2.5 1.9 °
100 % Average g force 0.94 g0.65 g min to max 1.14 g 0.92 0.76 g
Info Average speed 69 kn64 kn min to max 72 kn 72 64 kn
Info Average VSI -188 ft/m-314 ft/m min to max -9 ft/m -309 -73 ft/m
Info Average altitude 9 ft agl5 ft agl min to max 17 ft agl 17 5 ft agl
Info Average pitch angle 1.8 °-0.1 ° min to max 4.6 ° 0.4 -0.1 °
07515022501123344657Runway Distance mLanding Height ft075150225-25-20-15-10-50510152025Runway Distance mRunway Width m
Arrival Touchdown 92.41Touchdown distance was good at 198 m. Touchdown speed at 64 knwas fast. Touchdown rate was excellent at -73 ft/m. Runway touchdown position was slightly misaligned by 4.2 m from centreline. Local weather - Temperature 15 °C. Wind 2 kn at 270 °. Crosswind: 1 kn Tailwind: 1 kn.
ScoreDescriptionStartProfileEnd
100 % Touchdown VSI was -73 ft/m.
100 % Touchdown distance was 198 mTarget 457 m
81 % Speed at touchdown 64 knTarget 55 kn
96 % Runway alignment max 4.25 m3.28 m right -4.25 -2.28 m
99 % Average bank angle 1.8 °1.0 ° min to max 2.2 ° 1.9 2.2 °
97 % Average g force 0.68 g0.39 g min to max 1.06 g 0.76 0.47 g
80 % Landing Bounce
Info Average speed 62 kn59 kn min to max 64 kn 64 59 kn
Info Average pitch angle 1.7 °-2.6 ° min to max 5.3 ° -0.1 2.7 °
Arrival Rollout 99.54Total landing distance 449 m, 26 % of runway. Runway rollout alignment was perfect.
ScoreDescriptionStartProfileEnd
100 % Landing distance 449 m26 % of runway.
100 % Runway alignment max 2.55 m0.00 m left to 2.55 m right -2.19 -2.55 m
95 % Average g force 0.43 g0.34 g min to max 0.73 g 0.40 0.73 g
Info Average speed 61 kn39 kn min to max 67 kn 67 39 kn
Info Average pitch angle 1.4 °-0.1 ° min to max 2.4 ° 2.4 2.2 °
Info Average bank angle 1.0 °0.1 ° min to max 2.6 ° 2.2 0.1 °

Events

Fail Bounce during touchdown 3 ft agl · 57 kt
Runway Exit Exiting runway, average speed 5 kn
ScoreDescriptionStartProfileEnd
Info Average speed 17 kn11 kn min to max 33 kn 33 19 kn
Info Average pitch angle 3.2 °2.2 ° min to max 3.6 ° 2.6 3.4 °
Info Average bank angle 0.2 °0.0 ° min to max 0.7 ° 0.1 0.2 °
Info Average g force 0.97 g0.77 g min to max 1.02 g 0.77 0.92 g
Arrival Taxi 37.33Taxiing to the parking from the runway took 4 minutes and covered less than 1 nm.
ScoreDescriptionStartProfileEnd
43 % Average speed 19 kn0 kn min to max 34 kn 18 0 kn
0 % Average speed turning corners 22 knmax 34 kn 0 0 kn
100 % Average g force 0.90 g0.68 g min to max 1.04 g 0.92 1.01 g
Info Average pitch angle 3.5 °2.7 ° min to max 3.8 ° 3.2 3.7 °
Info Average bank angle 0.1 °0.0 ° min to max 0.8 ° 0.7 0.1 °

Events

Info Flaps Fully Retracted 3 ft agl · 32 kt

Speed and pitch

From brake release to the end of the climb, against time, then the takeoff point by point.

Lifted off at 72 kt with 2.8° of pitch.

How to read this

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.

120 kt8040020°10°0°LIFTOFF2.8° off5° at 35 ftAIRSPEEDPITCH02040 sfrom brake release
AirspeedPitchClimb 3

The takeoff, point by point

PointSpeedPitchTime
Brake release0 m 0 kt 3.4° 0 s
Liftoff295 m 72 kt 2.8° 12.9 s
35 ft490 m · 4.4 s after liftoff 84 kt 5.4° 17.3 s
End of Climb 32,588 m · 688 ft 103 kt 4.4° 59.7 s

Takeoff from KACK 15

Taxi lightsOk
Set
Takeoff roll100.00
292m22 %
Liftoff speed100.00
72kt
Runway alignment96.03
4.14m R
Bounce on takeoffOk
None
Rate of climb95.50
496fpm

Side view from the start of the roll to the end of Climb 3 at 688 ft.

Reached 35 ft with 821 m of runway left; then climbing at 880 fpm on average to 688 ft.

How to read this

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.

750 ft375 ft0CLIMB 3THRESHOLDRUNWAY END30405060KNOTS ALONG THE ROLLLiftoff 72 kt
On the runwayClimbingLast quarter of the runwayClimb 3

Plan view the roll down the 1,356 m runway.

Rolled from 44 m in, drifted 4.1 m right of the centreline and was back on it to lift off. Airborne 25 % of the way down the runway, before the 75 % line.

How to read this

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.

5001,000THRESHOLDLEFT ↑RIGHT ↓CROSS1 kn75 %widest 4.14 m RROLL 44 M INAirborne 339 m from the threshold
Your trackRunway used in the rollCentreline75 %: lift off before it for full marks
Runway to liftoff 339 m of 1,356 m · 25 %
Behind the start of the roll, 44 mTakeoff roll, 295 m Left ahead, 1,017 m

The approach to KACK 06

The final from 4 nm.

Profile height against the 3° glideslope, with its 2° band in green.

Inside the glideslope band from 2.7 nm, where the final began, to the threshold, never more than 430 ft below the slope.

How to read this

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.

5001,0001,5002,0002,500 ft4 nm3 nm2 nm1 nmTHRON SLOPE1,3301,0106903703° GLIDESLOPE · 2° BAND419321246150
GlideslopeAllowed bandYou, inside the bandYou, outside itYour height there

Plan distance off the extended centreline, your left at the top, with the 1° band. Sideways distances are drawn 3× larger than distances along the final.

Joined 475 m right of the centreline at 2.7 nm, then inside the band from 1.7 nm to the threshold.

How to read this

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.

4 nm3 nm2 nm1 nmTHR305 m L0305 m RLEFT ↑RIGHT ↓1° BAND240 m R8 m R1 m L13 m L
Extended centreline1° either sideYour trackOutside the band

Landing and touchdown on KACK 06

Over the threshold

Threshold height100.00
17ft
Threshold speed100.00
72kt
Centreline offset100.00
0.08m R

Touchdown

Past threshold100.00
201m
Centreline95.62
4.25m R
Speed81.33
64kt
Touchdown rate100.00
-96fpm
Impact96.86
1.06G
Bounces80.00
1
The crosswind

Little crosswind (1 kt): nothing to correct for. Touched down with the nose 1° left of the track, 2° of bank.

Wind 270° at 2 kt · 1 kt tail · 1 kt across

How to read this

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.

The stop

From 72 kt at touchdown to taxi speed (30 kt) in 11 s, an average deceleration of 0.22 g.

How to read this

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.

02040608060 kt · 136 m30 kt · 286 mtouchdown297 mkt
Your ground speed60 kt and taxi speed

Side view — the last 1,524 m of the approach.

Crossed the threshold at 17 ft, 33 ft below the 50 ft target. Touched down 201 m in, 104 m short of the ideal 305 m.

How to read this

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 1,524 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.

17 ft over the threshold · target 50 ft FLARE NORMALLY STARTS 11–45 FT 80 ft400 −73 fpm · −0.1° nose down · 64 kt Ideal — 50 ft, down at 305 m This flight — 17 ft, down at 201 m

Sink and pitch — through the flare, lined up with the side view.

The sink went from 340 fpm at 14 ft to 70 fpm at touchdown. The nose went down 0.5° on the way down.

How to read this

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.

SINK RATE FPM · 0 IS LEVEL, LOWER IS COMING DOWN FASTERPITCH · HIGHER IS NOSE UP0−500−1,000−1°4°10°touchdown−73 fpm at touchdown−0.1° at touchdown
Sink ratePitchFlare began, descent slowedTouchdown

Plan view — the first 1,524 m of the 1,750 m runway, to the same scale as the side view.

Touched down 2.3 m right of the centreline, and stayed about there down the rollout, 4.2 m right at the widest.

How to read this

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.

5001,0001,500 THRESHOLD LEFT ↑ RIGHT ↓ CROSS 1 kn FULL SCORE TO 503 M 201 m past threshold ROLLOUT ENDED
Your trackTouchdownRolloutCentreline

The 201 m touchdown sits inside the full-score zone. The 1.06 G arrival bounced.

Runway used 390 m of 1,750 m · 22 %
In the air over the runway, 201 mRollout, 189 m Left over, 1,361 m
Rollout distance100.00
189m22 % used
Rollout alignment100.00
2.55m R

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