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KGON
Groton\/New London, United States
Runway 23
Elevation3 ft asl
Weight5,783 kg
Fuel818 kg
Wind240° · 7 kn · 3 kn cross

Flight Score

98.34 %
KBOS
Boston, United States
Runway 22L
Elevation16 ft asl
Weight5,490 kg
Fuel498 kg
Wind230° · 15 kn · 8 kn cross
26 Feb 2024 0:55 92 nm Beechcraft King Air 350 321 kg
Departure Score
98.19 %
Enroute Score
99.43 %
Arrival Score
97.04 %

What went well

Touched down at -102 fpm — a soft arrival
Straight touchdown — 1.17 m off the centreline, no bounce
1.07 G at touchdown — inside band

What held you back

Arrival Final 3 — Approach angle 3.8 ° at 76 %, bank angle up to 7.0 ° at 89 %, −0.45 points
Departure Climb 2 — Heading variation 1.8 ° at 86 %, −0.28 points
Arrival Final 2 — Approach angle 3.2 ° at 88 %, −0.18 points
Departure Roll — Takeoff distance 2,377 m at 0 %, −0.07 points

Next time

Maintain the centreline

See Departure Roll

A small uncorrected heading error at 40 knots becomes a metre of offset per second by 100 knots, noticed only at rotation, producing a crabbed liftoff. Root cause is nearly always eyes on the tape instead of the far end of the runway. Small heading changes displace a distant point visibly long before the nearby centreline stripes look wrong.

Read more in Improve Your Take-Offs

Start to finish · 19 stages, 17 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 6 minutes and covered 1 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 14 kn0 kn min to max 24 kn 0 12 kn
100 % Average speed turning corners 10 knmax 14 kn 0 0 kn
100 % Average g force 1.00 g0.99 g min to max 1.02 g 1.02 1.00 g
100 % Beacon, navigation and taxi lights on
Info Average pitch angle -1.7 °-2.3 ° min to max -1.1 ° -1.5 -1.6 °
Info Average bank angle 0.1 °0.0 ° min to max 0.4 ° 0.0 0.1 °

Events

Info Engine 1 Started 5 ft agl
Info Navigation Lights Switched On 5 ft agl
Info Taxi Lights Switched On 5 ft agl
Info Pitot Heat Switched On 5 ft agl
Info Parking Brake Off 5 ft agl
Info Autopilot Nav1 Lock Activated 5 ft agl
Info Landing Lights Switched On 5 ft agl
Info Strobe Lights Switched On 5 ft agl
Info Taxi Lights Switched Off 5 ft agl
Departure Roll 99.02Departure roll runway 23 at KGON Groton-New London. Takeoff distance 2,377 m 156 % of runway. Liftoff speed was 112 kn. Local weather - Temperature 8 °C. Wind 7 kn at 240 °. Crosswind: 3 kn Headwind: 7 kn.
ScoreDescriptionStartProfileEnd
0 % Takeoff distance 2,377 m156 % of runway
100 % Liftoff speed was 112 knTarget 110 kn
95 % Runway alignment max 3.03 m0.08 m left to 2.95 m right -0.55 -2.95 m
100 % Average g force 1.01 g0.98 g min to max 1.09 g 1.00 1.09 g
100 % Takeoff Bounce
Info Average pitch angle -0.8 °-1.7 ° min to max 8.4 ° -1.6 8.4 °
Info Average bank angle 0.2 °0.0 ° min to max 0.6 ° 0.1 0.6 °
Departure Climb 1 98.49Departure climb to 50 ft agl from runway 23 KGON Groton-New London.
ScoreDescriptionStartProfileEnd
97 % Heading variation 0.8 °0.4 ° min to max 1.2 ° 0.4 1.2 °
100 % Average speed 116 kn112 kn min to max 119 kn 112 118 kn
97 % Average bank angle 1.4 °0.0 ° min to max 3.0 ° 0.7 3.0 °
98 % Average g force 1.20 g1.11 g min to max 1.29 g 1.14 1.11 g
Info Average VSI 811 ft/m427 ft/m min to max 1,183 ft/m 427 1,183 ft/m
Info Average altitude 18 ft agl0 ft agl min to max 45 ft agl 0 45 ft agl
Info Average pitch angle 12.6 °9.3 ° min to max 14.9 ° 9.3 14.7 °
Departure Climb 2 95.77Departure climb to 400 ft agl from 23 KGON Groton-New London.
ScoreDescriptionStartProfileEnd
86 % Heading variation 1.8 °1.3 ° min to max 3.1 ° 1.3 3.1 °
100 % Average speed 124 kn118 kn min to max 137 kn 118 137 kn
97 % Average bank angle 1.7 °0.1 ° min to max 3.2 ° 3.1 1.2 °
100 % Average g force 1.01 g0.88 g min to max 1.10 g 1.10 0.98 g
Info Average VSI 1,568 ft/m1,214 ft/m min to max 2,096 ft/m 1,214 1,951 ft/m
Info Average altitude 113 ft agl47 ft agl min to max 379 ft agl 47 379 ft agl
Info Average pitch angle 14.0 °12.8 ° min to max 15.0 ° 14.6 12.8 °

Events

Info Landing Gear Up 216 ft agl · 128 kt
Departure Climb 3 97.65Departure climb to 1,000 ft agl from 23 KGON Groton-New London.
ScoreDescriptionStartProfileEnd
95 % Heading variation 3.7 °3.2 ° min to max 4.3 ° 3.2 4.3 °
100 % Average speed 141 kn136 kn min to max 143 kn 136 143 kn
94 % Average bank angle 1.9 °0.2 ° min to max 4.4 ° 0.7 3.0 °
100 % Average g force 0.99 g0.92 g min to max 1.06 g 0.98 0.95 g
100 % Landing gear up
Info Average VSI 2,550 ft/m1,972 ft/m min to max 2,942 ft/m 1,972 2,727 ft/m
Info Average altitude 662 ft agl412 ft agl min to max 938 ft agl 412 938 ft agl
Info Average pitch angle 14.9 °12.9 ° min to max 16.8 ° 12.9 14.7 °

Events

Fail Bounce during liftoff 450 ft agl · 137 kt
Enroute Climb 99.71Enroute climb started overhead KGON Groton-New London Groton\/New London (Connecticut, United States). Climbing from 1,036 ft asl to 8,665 ft asl, an increase of 7,629 ft in 3 minutes and covering 5 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 166 kn142 kn min to max 208 kn 142 208 kn
100 % Average bank angle 19.5 °0.0 ° min to max 34.7 ° 1.4 1.6 °
97 % Average g force 1.07 g0.92 g min to max 1.30 g 0.95 1.00 g
Info Average VSI 2,388 ft/m261 ft/m min to max 2,843 ft/m 2,650 261 ft/m
Info Average altitude 3,708 ft asl1,036 ft asl min to max 8,665 ft asl 1,036 8,665 ft asl
Info Average pitch angle 11.3 °2.3 ° min to max 14.9 ° 14.6 2.3 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Autopilot Master Switched On 2,025 ft agl · 153 kt
Info Autopilot Yaw Damper Activated 2,095 ft agl · 158 kt
Info Landing Lights Switched Off 3,804 ft agl · 180 kt
Info Strobe Lights Switched Off 3,892 ft agl · 180 kt
Info Autopilot Altitude Hold Activated 7,966 ft agl · 190 kt
Enroute Level 100.00Enroute level cruise started 1 mile south of Ledyard (Connecticut, United States) and lasted 19 minutes, covering 52 nm.
ScoreDescriptionStartProfileEnd
100 % Average altitude 8,728 ft asl8,698 ft asl min to max 8,762 ft asl 8,698 8,754 ft asl
100 % Average speed 232 kn170 kn min to max 237 kn 216 170 kn
100 % Average bank angle 19.2 °0.1 ° min to max 33.0 ° 0.1 32.3 °
100 % Average g force 1.09 g0.94 g min to max 1.23 g 0.99 0.99 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 1.3 °0.2 ° min to max 2.4 ° 1.8 0.2 °

Events

Info Autopilot Altitude Hold Deactivated 8,581 ft agl · 194 kt
Enroute Descent 99.83Enroute descent started 1 mile west of Norfolk (Massachusetts, United States). Descent from 8,742 ft asl to 2,941 ft asl, a decrease of 5,801 ft in 8 minutes and covering 4 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 179 kn170 kn min to max 181 kn 170 174 kn
100 % Average bank angle 18.3 °0.3 ° min to max 33.4 ° 32.6 0.6 °
98 % Average g force 1.08 g0.95 g min to max 1.28 g 0.95 0.97 g
Info Average VSI -945 ft/m-1,900 ft/m min to max -76 ft/m -566 -76 ft/m
Info Average altitude 6,110 ft asl2,941 ft asl min to max 8,742 ft asl 8,742 2,941 ft asl
Info Average pitch angle 0.2 °-3.0 ° min to max 2.3 ° -1.0 2.3 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Autopilot Altitude Hold Activated 3,022 ft agl · 187 kt
Enroute Level 2 100.00Enroute level cruise started 1 mile south west of Medfield (Massachusetts, United States) and lasted 13 minutes, covering 23 nm.
ScoreDescriptionStartProfileEnd
100 % Average altitude 2,879 ft asl2,866 ft asl min to max 2,926 ft asl 2,926 2,879 ft asl
100 % Average speed 172 kn161 kn min to max 193 kn 173 170 kn
100 % Average bank angle 12.5 °0.0 ° min to max 32.6 ° 0.2 21.4 °
100 % Average g force 1.05 g0.94 g min to max 1.18 g 0.94 1.07 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 1.4 °0.3 ° min to max 3.4 ° 2.4 0.7 °

Events

Info Landing Lights Switched On 2,881 ft agl · 191 kt
Info Taxi Lights Switched On 2,881 ft agl · 191 kt
Info Strobe Lights Switched On 2,882 ft agl · 191 kt
Info Autopilot Yaw Damper Deactivated 2,840 ft agl · 190 kt
Info Flaps Position 1 2,840 ft agl · 190 kt
Enroute Descent 2 97.60Enroute descent started 1 mile south of Lynn (Massachusetts, United States). Descent from 2,879 ft asl to 1,851 ft asl, a decrease of 1,028 ft in 1 minutes and covering 2 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 175 kn170 kn min to max 189 kn 170 189 kn
100 % Average bank angle 10.7 °5.3 ° min to max 21.5 ° 21.5 7.4 °
76 % Average g force 0.96 g0.33 g min to max 1.08 g 1.08 0.97 g
Info Average VSI -837 ft/m-3,519 ft/m min to max 10 ft/m -8 -3,519 ft/m
Info Average altitude 2,696 ft asl1,851 ft asl min to max 2,879 ft asl 2,879 1,851 ft asl
Info Average pitch angle -2.3 °-10.2 ° min to max 0.7 ° 0.7 -10.1 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Autopilot Master Switched Off 2,871 ft agl · 176 kt
Info Landing Gear Down 2,729 ft agl · 183 kt
Arrival 100.00Not counted in the flight scoreArrival started 1 mile south of Lynn (Massachusetts, United States).
ScoreDescriptionStartProfileEnd
100 % Average speed 190 kn190 kn min to max 190 kn 190 190 kn
100 % Average bank angle 8.2 °7.7 ° min to max 8.9 ° 7.7 7.7 °
100 % Average g force 1.00 g0.99 g min to max 1.02 g 1.00 0.99 g
Info Average VSI -3,458 ft/m-3,534 ft/m min to max -3,418 ft/m -3,534 -3,424 ft/m
Info Average altitude 1,591 ft asl1,390 ft asl min to max 1,792 ft asl 1,792 1,390 ft asl
Info Average pitch angle -9.8 °-10.0 ° min to max -9.6 ° -10.0 -9.9 °
Info Turn coordination 00 min to max 0 0 0
Arrival Final 3 90.61Approaching runway 22L at KBOS Logan Intl from 3 nm to 2 nm. Descent from 1,319 ft agl to 657 ft agl. A decrease of 662 ft in 14 seconds.
ScoreDescriptionStartProfileEnd
76 % Approach angle 3.8 °3.1 ° min to max 4.6 °Target 3.0 ° 4.6 3.1 °
100 % Average speed 188 kn182 kn min to max 191 kn 190 182 kn
100 % Heading variation -0.8 °-0.9 ° min to max -0.7 ° -0.9 -0.7 °
89 % Average bank angle 3.3 °1.3 ° min to max 7.0 ° 7.0 1.3 °
100 % Average g force 1.05 g0.99 g min to max 1.14 g 0.99 1.09 g
Info Average VSI -2,922 ft/m-3,432 ft/m min to max -1,838 ft/m -3,430 -1,838 ft/m
Info Average altitude 954 ft agl657 ft agl min to max 1,319 ft agl 1,319 657 ft agl
Info Average pitch angle -8.0 °-10.0 ° min to max -4.3 ° -10.0 -4.3 °
22.252.52.7536006507007508008509009501,0001,0501,1001,1501,2001,2501,300Distance to Touchdown NMApproach Height ft22.252.52.753-130-98-65-330336598130Distance to Touchdown NMApproach Runway Alignment m
Arrival Final 2 96.32Approaching runway 22L at KBOS Logan Intl from 2 nm to 1 nm. Descent from 632 ft agl to 380 ft agl. A decrease of 252 ft in 24 seconds.
ScoreDescriptionStartProfileEnd
88 % Approach angle 3.2 °2.9 ° min to max 3.7 °Target 3.0 ° 3.0 3.6 °
100 % Average speed 154 kn122 kn min to max 179 kn 179 122 kn
100 % Heading variation -0.2 °-0.6 ° min to max 0.2 ° -0.6 0.2 °
99.8 % Average bank angle 1.3 °0.0 ° min to max 3.1 ° 0.2 1.5 °
100 % Average g force 1.00 g0.77 g min to max 1.20 g 1.14 1.01 g
Info Average VSI -657 ft/m-1,592 ft/m min to max 416 ft/m -1,592 -860 ft/m
Info Average altitude 482 ft agl380 ft agl min to max 632 ft agl 632 380 ft agl
Info Average pitch angle -1.4 °-3.2 ° min to max 2.7 ° -3.2 -2.5 °

Events

Info Flaps Position 2 425 ft agl · 154 kt
11.251.51.752300350400450500550600650700750Distance to Touchdown NMApproach Height ft11.251.51.752-80-60-40-20020406080Distance to Touchdown NMApproach Runway Alignment m
Arrival Final 1 99.80Approaching runway 22L at KBOS Logan Intl from 1 nm to 0 nm. Descent from 365 ft agl to 46 ft agl. A decrease of 319 ft in 30 seconds.
ScoreDescriptionStartProfileEnd
99 % Approach angle 3.1 °2.8 ° min to max 3.6 °Target 3.0 ° 3.6 2.8 °
100 % Average speed 97 kn92 kn min to max 121 kn 121 92 kn
100 % Heading variation 0.2 °0.2 ° min to max 0.3 ° 0.2 0.2 °
100 % Average bank angle 0.8 °0.0 ° min to max 2.9 ° 1.2 0.0 °
100 % Average g force 1.02 g0.93 g min to max 1.09 g 0.98 1.08 g
Info Average VSI -601 ft/m-1,007 ft/m min to max -292 ft/m -858 -482 ft/m
Info Average altitude 105 ft agl46 ft agl min to max 365 ft agl 365 46 ft agl
Info Average pitch angle 1.6 °-3.2 ° min to max 4.1 ° -2.8 4.1 °
00.250.50.751050100150200250300350Distance to Touchdown NMApproach Height ft00.250.50.751-50-38-25-13013253850Distance to Touchdown NMApproach Runway Alignment m
Arrival Landing 97.87Landing on runway 22L at KBOS Logan Intl, runway length 2,329 m. Good threshold height. Threshold speed was slightly below target at 92 kn.
ScoreDescriptionStartProfileEnd
100 % Threshold speed was slightly below target at 92 kn. Target 100 kn
99.95 % Landing and flare profile
100 % Heading variation 0.1 °-0.0 ° min to max 0.2 ° 0.2 -0.0 °
99.7 % Average bank angle 0.9 °0.0 ° min to max 2.9 ° 0.1 0.8 °
100 % Average g force 1.01 g0.91 g min to max 1.09 g 1.08 0.96 g
Info Average speed 84 kn78 kn min to max 92 kn 92 78 kn
Info Average VSI -193 ft/m-474 ft/m min to max -4 ft/m -474 -102 ft/m
Info Average altitude 15 ft agl0 ft agl min to max 41 ft agl 41 0 ft agl
Info Average pitch angle 4.8 °3.6 ° min to max 6.4 ° 4.1 4.5 °
07515022530037545052560001123344657Runway Distance mLanding Height ft075150225300375450525600-25-20-15-10-50510152025Runway Distance mRunway Width m
Arrival Touchdown 97.27Touchdown point was 98 m beyond the touchdown zone. Touchdown speed at 78 kn was good. Touchdown rate was smooth at -102 ft/m. Runway touchdown alignment was perfect. Local weather - Temperature 13 °C. Wind 15 kn at 229 °. Crosswind: 8 kn Headwind: 13 kn.
ScoreDescriptionStartProfileEnd
95 % Touchdown VSI was -102 ft/m.
91 % Touchdown distance was 539 mTarget 457 m
100 % Speed at touchdown 78 knTarget 91 kn
100 % Runway alignment max 1.17 m0.77 m right -0.45 -1.17 m
100 % Average bank angle 0.5 °0.3 ° min to max 0.8 ° 0.8 0.5 °
100 % Average g force 1.04 g0.96 g min to max 1.07 g 0.96 1.04 g
100 % Landing Bounce
Info Average speed 78 kn78 kn min to max 78 kn 78 78 kn
Info Average pitch angle 3.7 °3.1 ° min to max 4.5 ° 4.5 3.1 °
Arrival Rollout 97.41Total landing distance 831 m, 36 % of runway. Runway rollout alignment was very good.
ScoreDescriptionStartProfileEnd
100 % Landing distance 831 m36 % of runway.
94 % Runway alignment max 3.19 m0.00 m left to 3.19 m right -1.33 -1.49 m
100 % Average g force 1.01 g0.99 g min to max 1.04 g 1.04 0.99 g
Info Average speed 59 kn34 kn min to max 64 kn 64 34 kn
Info Average pitch angle 2.5 °-1.4 ° min to max 3.9 ° 3.0 -1.2 °
Info Average bank angle 0.3 °0.0 ° min to max 0.6 ° 0.5 0.2 °
Runway Exit Exiting runway, average speed 35 kn
ScoreDescriptionStartProfileEnd
Info Average speed 21 kn2 kn min to max 30 kn 27 2 kn
Info Average pitch angle -1.7 °-2.3 ° min to max -1.0 ° -1.0 -1.5 °
Info Average bank angle 0.3 °0.0 ° min to max 0.7 ° 0.0 0.4 °
Info Average g force 1.00 g0.99 g min to max 1.01 g 1.00 1.00 g

Events

Info Flaps Fully Retracted 5 ft agl · 38 kt
Info Landing Lights Switched Off 5 ft agl · 40 kt
Info Strobe Lights Switched Off 5 ft agl · 40 kt
Info Pitot Heat Switched Off 5 ft agl · 43 kt
Info Pitot Heat Switched On 5 ft agl · 43 kt
Info Pitot Heat Switched Off 5 ft agl · 43 kt
Arrival Taxi 100.00Taxiing to the parking from the runway took 4 minutes and covered less than 1 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 11 kn0 kn min to max 16 kn 6 4 kn
100 % Average speed turning corners 13 knmax 14 kn 0 0 kn
100 % Average g force 1.00 g0.98 g min to max 1.00 g 1.00 1.00 g
Info Average pitch angle -1.6 °-2.1 ° min to max -1.2 ° -1.4 -1.9 °
Info Average bank angle 0.1 °0.0 ° min to max 0.4 ° 0.4 0.1 °

Events

Info Parking Brake On 5 ft agl · 6 kt
Info Parking Brake Off 5 ft agl · 6 kt
Info Parking Brake On 5 ft agl
Info Navigation Lights Switched Off 5 ft agl
Info Engine 1 Stopped 5 ft agl
Info Engine 2 Stopped 5 ft agl
Info Taxi Lights Switched Off 5 ft agl

Speed and pitch

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

Lifted off at 112 kt with 9.3° 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.

150 kt10050020°10°0°LIFTOFF9.3° off15° at 35 ftAIRSPEEDPITCH02040 sfrom brake release
AirspeedPitchClimb 3

The takeoff, point by point

PointSpeedPitchTime
Brake release0 m 23 kt -1.6° 0 s
80 kt187 m 80 kt -1.1° 8.2 s
Liftoff452 m 112 kt 9.3° 14.0 s
35 ft579 m · 2.3 s after liftoff 117 kt 14.8° 16.2 s
End of Climb 32,056 m · 938 ft 143 kt 14.7° 40.7 s

Takeoff from KGON 23

Takeoff roll100.00
515m34 %
Liftoff speed100.00
112kt
Runway alignment95.08
2.95m R
Bounce on takeoffOk
None
Rate of climb98.49
811fpm

Side view from the start of the roll to the end of Climb 3 at 938 ft.

Reached 35 ft with 874 m of runway left; then climbing at 2,100 fpm on average to 938 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.

1,000 ft500 ft0CLIMB 3THRESHOLDRUNWAY END6080100KNOTS ALONG THE ROLLLiftoff 112 kt
On the runwayClimbingLast quarter of the runwayClimb 3

Plan view the roll down the 1,521 m runway.

Rolled from 68 m in, drifted right of the centreline, 2.9 m at the widest, and lifted off 3.2 m right. Airborne 34 % 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.

5001,0001,500THRESHOLDLEFT ↑RIGHT ↓CROSS3 kn75 %widest 2.91 m RROLL 68 M INAirborne 520 m from the threshold
Your trackRunway used in the rollCentreline75 %: lift off before it for full marks
Runway to liftoff 520 m of 1,521 m · 34 %
Behind the start of the roll, 68 mTakeoff roll, 452 m Left ahead, 1,001 m

The approach to KBOS 22L

The final from 4 nm.

Profile height against the 3° glideslope, with its 1° band in green.

High from 4 nm to 2.3 nm (up to 1,590 ft over), then back on it to the threshold.

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.

1,0002,0003,000 ft4 nm3 nm2 nm1 nmTHRON SLOPE1,3301,0106903703° GLIDESLOPE · 1° BAND2,8531,831752516431218
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.

Outside the 1° band 3 times; furthest 341 m left at 4.0 nm.

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° BAND341 m L40 m R68 m R24 m R3 m L17 m L
Extended centreline1° either sideYour trackOutside the band

Landing and touchdown on KBOS 22L

Over the threshold

Threshold height91.62
41ft
Threshold speed100.00
91kt
Centreline offset100.00
0.06m L

Touchdown

Past threshold90.94
540m
Centreline100.00
1.17m R
Speed100.00
78kt
Touchdown rate94.52
-102fpm
Impact100.00
1.07G
BouncesOk
None
The crosswind

No crosswind: nothing to correct for. Touched down with the nose 5° right of the track, wings level.

Wind 230° at 15 kt · 13 kt head · 0 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 65 kt at touchdown to taxi speed (30 kt) in 12 s, an average deceleration of 0.16 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 · 66 m30 kt · 309 mtouchdown321 mkt
Your ground speed60 kt and taxi speed

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

Crossed the threshold at 41 ft, close to the 50 ft target. Touched down 540 m in, 235 m past 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.

41 ft over the threshold · target 50 ft FLARE NORMALLY STARTS 11–45 FT 80 ft400 −102 fpm · 4.5° nose up · 78 kt Ideal — 50 ft, down at 305 m This flight — 41 ft, down at 540 m

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

The sink went from 400 fpm at 38 ft to 100 fpm at touchdown. The pitch barely changed.

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 UP0−500−1,0000°5°10°touchdown−102 fpm at touchdown4.5° at touchdown
Sink ratePitchFlare began, descent slowedTouchdown

Plan view — the first 1,524 m of the 2,329 m runway, to the same scale as the side view.

Touched down on the centreline, and stayed about there down the rollout, 3.2 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.

5001,0001,500 THRESHOLD LEFT ↑ RIGHT ↓ FULL SCORE TO 503 M 540 m past threshold ROLLOUT ENDED
Your trackTouchdownRolloutCentreline

Touched down 540 m past the threshold — beyond the full-score zone. The arrival was smooth.

Runway used 816 m of 2,329 m · 35 %
In the air over the runway, 540 mRollout, 276 m Left over, 1,513 m
Rollout distance100.00
276m35 % used
Rollout alignment94.24
3.19m R

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