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KCON
Concord, United States
Runway 35
Elevation338 ft asl
Weight2,764 kg
Fuel370 kg
Wind320° · 13 kn · 3 kn cross

Flight Score

95.37 %
KBOS
Boston, United States
Runway 32
Elevation13 ft asl
Weight2,684 kg
Fuel285 kg
Wind300° · 17 kn · 2 kn cross
8 Nov 2023 0:56 124 nm Cessna 414A 85 kg
Departure Score
91.84 %
Enroute Score
99.85 %
Arrival Score
93.29 %

What went well

Straight touchdown — 2.10 m off the centreline, no bounce
Rollout held the centreline — 0.67 m off at taxi speed
Held the centreline on the roll — 0.57 m off at liftoff

What held you back

Departure Taxi — beacon light off should be on, then taxi light off should be on; peak taxi speed 33 kt at 47 %, −1.42 points
Arrival Touchdown — bank angle up to 2.0 ° at 51 %, Touchdown distance was 703 m at 73 %, −0.85 points
Departure Roll — landing lights off should be on, then strobe light off should be on; Takeoff distance 6,593 m at 0 %, −0.71 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 · 20 stages, 18 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 78.67Taxiing from the parking to the runway took 9 minutes and covered 4 nm.
ScoreDescriptionStartProfileEnd
47 % Average speed 24 kn0 kn min to max 33 kn 0 17 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 1.01 g 1.00 1.00 g
100 % Beacon, navigation and taxi lights on
Info Average pitch angle 3.1 °1.6 ° min to max 3.6 ° 3.0 3.2 °
Info Average bank angle 0.2 °0.0 ° min to max 0.6 ° 0.5 0.2 °

Events

Fail Beacon Light OFF should be ON
Fail Taxi Light OFF should be ON
Info Engine 2 Started 3 ft agl
Info Autopilot Nav1 Lock Activated 3 ft agl
Info Autopilot Flight Director Activated 3 ft agl
Info Autopilot Yaw Damper Activated 3 ft agl
Info Autopilot Vertical Hold Activated 3 ft agl
Info Parking Brake Off 3 ft agl
Info Pitot Heat Switched On 3 ft agl
Departure Roll 89.28Departure roll runway 35 at KCON Concord Muni. Takeoff distance 6,593 m 403 % of runway. Liftoff speed was 95 kn. Local weather - Temperature 4 °C. Wind 13 kn at 319 °. Crosswind: 3 kn Headwind: 12 kn.
ScoreDescriptionStartProfileEnd
0 % Takeoff distance 6,593 m403 % of runway
100 % Liftoff speed was 95 knTarget 100 kn
95 % Runway alignment max 3.71 m2.95 m left to 0.76 m right 0.98 -0.57 m
100 % Average g force 1.00 g0.97 g min to max 1.05 g 0.99 1.05 g
100 % Takeoff Bounce
Info Average pitch angle 2.9 °2.5 ° min to max 6.2 ° 3.0 6.2 °
Info Average bank angle 0.2 °0.0 ° min to max 0.4 ° 0.1 0.4 °

Events

Fail Landing Lights OFF should be ON
Fail Strobe Light OFF should be ON
Info Flaps Position 1 3 ft agl · 33 kt
Departure Climb 1 99.80Departure climb to 50 ft agl from runway 35 KCON Concord Muni.
ScoreDescriptionStartProfileEnd
100 % Heading variation -0.0 °-0.0 ° min to max 0.0 ° 0.0 -0.0 °
100 % Average speed 96 kn94 kn min to max 97 kn 95 97 kn
99 % Average bank angle 1.5 °0.0 ° min to max 2.3 ° 0.4 2.3 °
100 % Average g force 1.03 g0.91 g min to max 1.21 g 1.07 0.91 g
Info Average VSI 637 ft/m446 ft/m min to max 744 ft/m 446 731 ft/m
Info Average altitude 23 ft agl0 ft agl min to max 50 ft agl 0 50 ft agl
Info Average pitch angle 8.9 °6.6 ° min to max 10.4 ° 6.6 8.3 °
Departure Climb 2 99.03Departure climb to 400 ft agl from 35 KCON Concord Muni.
ScoreDescriptionStartProfileEnd
100 % Heading variation 0.1 °-0.0 ° min to max 0.9 ° -0.0 0.9 °
100 % Average speed 101 kn97 kn min to max 117 kn 97 113 kn
96 % Average bank angle 1.6 °0.4 ° min to max 3.5 ° 2.3 0.4 °
100 % Average g force 0.99 g0.90 g min to max 1.10 g 0.91 1.04 g
Info Average VSI 700 ft/m536 ft/m min to max 1,592 ft/m 728 1,592 ft/m
Info Average altitude 100 ft agl54 ft agl min to max 383 ft agl 54 383 ft agl
Info Average pitch angle 8.6 °7.6 ° min to max 12.8 ° 8.2 12.8 °

Events

Fail Bounce during liftoff 201 ft agl · 106 kt
Info Landing Gear Up 68 ft agl · 99 kt
Info Flaps Position 2 119 ft agl · 103 kt
Info Flaps Position 1 138 ft agl · 103 kt
Info Flaps Fully Retracted 201 ft agl · 106 kt
Departure Climb 3 92.42Departure climb to 1,000 ft agl from 35 KCON Concord Muni.
ScoreDescriptionStartProfileEnd
100 % Heading variation 1.6 °1.1 ° min to max 2.6 ° 1.1 2.6 °
100 % Average speed 113 kn111 kn min to max 116 kn 116 114 kn
62 % Average bank angle 9.1 °0.1 ° min to max 16.4 ° 0.4 16.4 °
100 % Average g force 0.95 g0.80 g min to max 1.08 g 1.06 0.80 g
100 % Landing gear up
Info Average VSI 1,823 ft/m1,401 ft/m min to max 2,039 ft/m 1,734 1,401 ft/m
Info Average altitude 566 ft agl409 ft agl min to max 713 ft agl 409 713 ft agl
Info Average pitch angle 12.6 °7.8 ° min to max 15.2 ° 13.2 7.8 °

Events

Info Autopilot Vertical Hold Deactivated 470 ft agl · 111 kt
Info Autopilot Vertical Hold Activated 500 ft agl · 111 kt
Enroute Climb 98.80Enroute climb started 1 mile north east of Concord (Merrimack County, New Hampshire, United States). Climbing from 1,069 ft asl to 4,540 ft asl, an increase of 3,471 ft in 3 minutes and covering 8 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 166 kn118 kn min to max 178 kn 118 164 kn
100 % Average bank angle 15.2 °0.1 ° min to max 29.9 ° 16.5 0.2 °
88 % Average g force 1.05 g0.84 g min to max 1.46 g 0.84 0.99 g
Info Average VSI 1,064 ft/m539 ft/m min to max 1,476 ft/m 1,068 1,323 ft/m
Info Average altitude 1,984 ft asl1,069 ft asl min to max 4,540 ft asl 1,069 4,540 ft asl
Info Average pitch angle 4.5 °2.3 ° min to max 6.0 ° 5.6 5.3 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Autopilot Vertical Hold Deactivated 1,061 ft agl · 175 kt
Info Autopilot Vertical Hold Activated 1,102 ft agl · 175 kt
Enroute Level 100.00Enroute level cruise started 4 miles east of Suncook (Merrimack County, New Hampshire, United States) and lasted 17 minutes, covering 57 nm.
ScoreDescriptionStartProfileEnd
100 % Average altitude 4,716 ft asl4,655 ft asl min to max 4,728 ft asl 4,655 4,715 ft asl
100 % Average speed 172 kn168 kn min to max 174 kn 168 173 kn
100 % Average bank angle 1.6 °0.0 ° min to max 13.1 ° 0.2 13.0 °
100 % Average g force 1.00 g0.96 g min to max 1.03 g 1.01 1.02 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 1.0 °0.7 ° min to max 1.6 ° 1.6 0.9 °
Enroute Descent 100.00Enroute descent started 2 miles south east of North Tillies Basin (Massachusetts, United States). Descent from 4,715 ft asl to 3,970 ft asl, a decrease of 744 ft in 1 minutes and covering 4 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 182 kn173 kn min to max 194 kn 173 194 kn
100 % Average bank angle 14.0 °1.3 ° min to max 16.4 ° 13.1 2.5 °
100 % Average g force 1.02 g0.83 g min to max 1.06 g 1.03 0.99 g
Info Average VSI -605 ft/m-807 ft/m min to max -8 ft/m -18 -781 ft/m
Info Average altitude 4,481 ft asl3,970 ft asl min to max 4,715 ft asl 4,715 3,970 ft asl
Info Average pitch angle -1.1 °-1.8 ° min to max 1.0 ° 1.0 -1.8 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Autopilot Altitude Hold Deactivated 4,713 ft agl · 183 kt
Info Autopilot Vertical Hold Activated 4,713 ft agl · 183 kt
Enroute Level 2 100.00Enroute level cruise started 1 mile south of Tillies Bank (Massachusetts, United States) and lasted 13 minutes, covering 31 nm.
ScoreDescriptionStartProfileEnd
100 % Average altitude 3,804 ft asl3,730 ft asl min to max 3,836 ft asl 3,836 3,730 ft asl
100 % Average speed 157 kn118 kn min to max 196 kn 196 151 kn
100 % Average bank angle 5.4 °0.0 ° min to max 12.9 ° 0.4 0.2 °
100 % Average g force 1.01 g0.99 g min to max 1.16 g 1.16 1.02 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 1.5 °-1.3 ° min to max 3.0 ° -0.8 -1.3 °

Events

Info Landing Lights Switched On 3,803 ft agl · 150 kt
Info Flaps Position 1 3,794 ft agl · 154 kt
Info Autopilot Altitude Hold Deactivated 3,754 ft agl · 147 kt
Info Autopilot Vertical Hold Activated 3,754 ft agl · 147 kt
Enroute Descent 2 100.00Enroute descent started 1 mile north west of Marshfield Hills (Plymouth County, Massachusetts, United States). Descent from 3,608 ft asl to 3,059 ft asl, a decrease of 549 ft in 1 minutes and covering 2 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 153 kn150 kn min to max 156 kn 156 150 kn
100 % Average bank angle 0.1 °0.0 ° min to max 0.2 ° 0.2 0.0 °
100 % Average g force 1.00 g0.99 g min to max 1.01 g 1.01 1.00 g
Info Average VSI -819 ft/m-848 ft/m min to max -779 ft/m -804 -848 ft/m
Info Average altitude 3,332 ft asl3,059 ft asl min to max 3,608 ft asl 3,608 3,059 ft asl
Info Average pitch angle -1.8 °-1.8 ° min to max -1.7 ° -1.8 -1.7 °
Info Turn coordination 00 min to max 0 0 0
Enroute Level 3 100.00Enroute level cruise started 1 mile north of Norwell (Plymouth County, Massachusetts, United States) and lasted 1 minutes, covering 3 nm.
ScoreDescriptionStartProfileEnd
100 % Average altitude 2,874 ft asl2,861 ft asl min to max 2,926 ft asl 2,926 2,862 ft asl
100 % Average speed 139 kn132 kn min to max 150 kn 150 141 kn
100 % Average bank angle 0.1 °0.1 ° min to max 0.2 ° 0.1 0.1 °
100 % Average g force 1.00 g0.99 g min to max 1.02 g 0.99 1.00 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 1.4 °-1.8 ° min to max 2.2 ° -1.8 1.6 °

Events

Info Autopilot Altitude Hold Activated 2,831 ft agl · 154 kt
Info Autopilot Vertical Hold Deactivated 2,831 ft agl · 154 kt
Enroute Descent 3 100.00Enroute descent started 2 miles south west of Cohasset (Norfolk County, Massachusetts, United States). Descent from 2,862 ft asl to 1,496 ft asl, a decrease of 1,366 ft in 2 minutes and covering 5 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 160 kn141 kn min to max 162 kn 141 160 kn
100 % Average bank angle 0.1 °0.0 ° min to max 0.2 ° 0.1 0.1 °
100 % Average g force 1.01 g0.94 g min to max 1.24 g 1.02 0.95 g
Info Average VSI -721 ft/m-823 ft/m min to max 0 ft/m -9 -168 ft/m
Info Average altitude 1,851 ft asl1,496 ft asl min to max 2,863 ft asl 2,862 1,496 ft asl
Info Average pitch angle -1.7 °-2.2 ° min to max 1.6 ° 1.6 0.2 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Autopilot Altitude Hold Deactivated 2,794 ft agl · 144 kt
Info Autopilot Vertical Hold Activated 2,794 ft agl · 144 kt
Info Autopilot Nav1 Lock Deactivated 1,863 ft agl · 163 kt
Info Autopilot Approach Mode Activated 1,863 ft agl · 163 kt
Info Autopilot Altitude Hold Activated 1,514 ft agl · 162 kt
Info Autopilot Vertical Hold Deactivated 1,514 ft agl · 162 kt
Enroute Level 4 100.00Enroute level cruise started 1 mile south of Hull (Plymouth County, Massachusetts, United States) and lasted less than 1 minute. , covering 1 nm.
ScoreDescriptionStartProfileEnd
100 % Average altitude 1,471 ft asl1,457 ft asl min to max 1,493 ft asl 1,493 1,457 ft asl
100 % Average speed 150 kn135 kn min to max 159 kn 159 135 kn
100 % Average bank angle 0.1 °0.0 ° min to max 0.3 ° 0.2 0.1 °
100 % Average g force 1.00 g0.98 g min to max 1.06 g 1.06 1.00 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 1.0 °0.5 ° min to max 1.3 ° 0.7 1.3 °

Events

Info Flaps Position 2 1,463 ft agl · 149 kt
Info Landing Gear Down 1,463 ft agl · 144 kt
Arrival 100.00Not counted in the flight scoreArrival started 1 mile south of Hull (Plymouth County, Massachusetts, United States).
ScoreDescriptionStartProfileEnd
100 % Average speed 106 kn93 kn min to max 134 kn 134 96 kn
100 % Average bank angle 0.4 °0.0 ° min to max 3.7 ° 0.0 3.7 °
100 % Average g force 1.00 g0.93 g min to max 1.06 g 1.01 0.99 g
Info Average VSI -429 ft/m-568 ft/m min to max -48 ft/m -65 -424 ft/m
Info Average altitude 848 ft asl258 ft asl min to max 1,456 ft asl 1,456 258 ft asl
Info Average pitch angle 1.0 °-0.6 ° min to max 2.8 ° 1.5 1.3 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Autopilot Altitude Hold Deactivated 1,453 ft agl · 129 kt
Info Flaps Position 3 1,432 ft agl · 127 kt
Info Autopilot Master Switched Off 370 ft agl · 95 kt
Info Autopilot Approach Mode Deactivated 370 ft agl · 95 kt
Info Autopilot Master Switched On 365 ft agl · 96 kt
Info Autopilot Master Switched Off 311 ft agl · 94 kt
Arrival Final 1 93.67Approaching runway 32 at KBOS Logan Intl from 1 nm to 0 nm. Descent from 237 ft agl to 60 ft agl. A decrease of 177 ft in 25 seconds.
ScoreDescriptionStartProfileEnd
100 % Approach angle 3.3 °3.0 ° min to max 3.6 °Target 3.0 ° 3.0 3.6 °
100 % Average speed 95 kn90 kn min to max 101 kn 96 90 kn
86 % Heading variation 0.2 °0.1 ° min to max 0.6 ° 0.6 0.1 °
83 % Average bank angle 2.4 °0.0 ° min to max 9.4 ° 7.2 1.4 °
100 % Average g force 1.02 g0.87 g min to max 1.15 g 1.01 1.02 g
Info Average VSI -397 ft/m-602 ft/m min to max -228 ft/m -446 -357 ft/m
Info Average altitude 93 ft agl60 ft agl min to max 237 ft agl 237 60 ft agl
Info Average pitch angle 2.6 °0.5 ° min to max 4.1 ° 1.8 3.1 °
00.250.50.751050100150200250Distance to Touchdown NMApproach Height ft00.250.50.751-40-30-20-10010203040Distance to Touchdown NMApproach Runway Alignment m
Arrival Landing 93.92Landing on runway 32 at KBOS Logan Intl, runway length 1,522 m. Good threshold height. Threshold speed was a little below target at 90 kn.
ScoreDescriptionStartProfileEnd
88 % Threshold speed was a little below target at 90 kn. Target 100 kn
90 % Landing and flare profile
96 % Heading variation 0.2 °0.1 ° min to max 0.3 ° 0.1 0.2 °
97 % Average bank angle 1.2 °0.0 ° min to max 3.0 ° 1.4 2.0 °
100 % Average g force 1.00 g0.89 g min to max 1.16 g 1.03 1.07 g
Info Average speed 86 kn76 kn min to max 94 kn 90 76 kn
Info Average VSI -169 ft/m-413 ft/m min to max 99 ft/m -359 -268 ft/m
Info Average altitude 18 ft agl0 ft agl min to max 55 ft agl 55 0 ft agl
Info Average pitch angle 4.2 °2.0 ° min to max 6.1 ° 3.1 5.7 °
07515022530037545052560067575082501123344657Runway Distance mLanding Height ft075150225300375450525600675750825-18-15-12-9-6-30369121518Runway Distance mRunway Width m
Arrival Touchdown 87.31Touchdown point was 264 m beyond the touchdown zone. Touchdown speed at 76 kn was good. Touchdown rate was fair at -268 ft/m. Runway touchdown alignment was very good. Local weather - Temperature 7 °C. Wind 17 kn at 300 °. Crosswind: 2 kn Headwind: 17 kn.
ScoreDescriptionStartProfileEnd
77 % Touchdown VSI was -268 ft/m.
73 % Touchdown distance was 703 mTarget 457 m
100 % Speed at touchdown 76 knTarget 87 kn
97 % Runway alignment max 2.25 m2.14 m left 2.25 2.10 m
51 % Average bank angle 0.7 °0.0 ° min to max 2.0 ° 2.0 0.1 °
99 % Average g force 1.17 g1.07 g min to max 1.27 g 1.07 1.12 g
100 % Landing Bounce
Info Average speed 76 kn76 kn min to max 76 kn 76 76 kn
Info Average pitch angle 5.4 °4.4 ° min to max 6.0 ° 5.7 4.4 °
Arrival Rollout 97.67Total landing distance 1,015 m, 67 % of runway. Runway rollout alignment was perfect.
ScoreDescriptionStartProfileEnd
100 % Landing distance 1,015 m67 % of runway.
95 % Runway alignment max 3.02 m3.02 m left to 0.00 m left 2.12 0.67 m
100 % Average g force 1.02 g0.99 g min to max 1.08 g 1.08 1.02 g
Info Average speed 54 kn31 kn min to max 58 kn 58 31 kn
Info Average pitch angle 3.3 °2.6 ° min to max 4.1 ° 4.1 2.6 °
Info Average bank angle 0.0 °0.0 ° min to max 0.2 ° 0.1 0.0 °
Runway Exit Exiting runway, average speed 18 kn
ScoreDescriptionStartProfileEnd
Info Average speed 11 kn0 kn min to max 28 kn 28 8 kn
Info Average pitch angle 3.0 °2.3 ° min to max 3.3 ° 2.9 3.3 °
Info Average bank angle 0.1 °0.0 ° min to max 0.3 ° 0.3 0.0 °
Info Average g force 1.00 g1.00 g min to max 1.01 g 1.01 1.00 g

Events

Info Landing Lights Switched Off 3 ft agl · 26 kt
Arrival Taxi 93.87Taxiing to the parking from the runway took 8 minutes and covered 1 nm.
ScoreDescriptionStartProfileEnd
85 % Average speed 14 kn0 kn min to max 27 kn 10 0 kn
100 % Average speed turning corners 10 knmax 10 kn 0 0 kn
100 % Average g force 1.00 g0.99 g min to max 1.01 g 1.00 1.00 g
Info Average pitch angle 3.2 °1.6 ° min to max 3.8 ° 3.3 3.4 °
Info Average bank angle 0.2 °0.0 ° min to max 0.5 ° 0.0 0.0 °

Events

Fail Taxi Light OFF should be ON
Info Parking Brake On 3 ft agl
Info Navigation Lights Switched Off 3 ft agl
Info Strobe Lights Switched Off 3 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 95 kt with 6.6° 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°LIFTOFF6.6° off10° at 35 ftAIRSPEEDPITCH02040 sfrom brake release
AirspeedPitchClimb 3

The takeoff, point by point

PointSpeedPitchTime
Brake release0 m 30 kt 3.0° 0 s
Liftoff532 m 95 kt 6.6° 20.0 s
35 ft684 m · 3.4 s after liftoff 96 kt 9.6° 23.4 s
End of Climb 32,191 m · 713 ft 114 kt 7.8° 54.1 s

Takeoff from KCON 35

Takeoff roll51.37
1,425m87 %
Liftoff speed100.00
95kt
Runway alignment95.07
2.95m L
Bounce on takeoffOk
None
Rate of climb99.80
636fpm

Side view from the start of the roll to the end of Climb 3 at 713 ft.

Reached 35 ft with 56 m of runway left; then climbing at 1,250 fpm on average to 713 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 END304050607080KNOTS ALONG THE ROLLLiftoff 95 kt
On the runwayClimbingLast quarter of the runwayClimb 3

Plan view the roll down the 1,635 m runway.

Rolled from 895 m in, drifted 3 m left of the centreline and was back on it to lift off, in 6 kn of crosswind from the left. Airborne 88 % of the way down the runway, past 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 ↓CROSS6 kn75 %widest 2.99 m LROLL 895 M INAirborne 1,428 m from the threshold
Your trackRunway used in the rollCentreline75 %: lift off before it for full marks
Runway to liftoff 1,428 m of 1,635 m · 87 %
Behind the start of the roll, 895 mTakeoff roll, 532 m Left ahead, 207 m

The approach to KBOS 32

The final from 4 nm.

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

Inside the glideslope band from 4 nm to the threshold, never more than 50 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° BAND1,281976656475337205
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 1,154 m left of the centreline, then inside the band from 0.5 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° BAND1154 m L832 m L502 m L334 m L182 m L17 m L
Extended centreline1° either sideYour trackOutside the band

Landing and touchdown on KBOS 32

Over the threshold

Threshold height100.00
54ft
Threshold speed88.22
89kt
Centreline offset96.43
0.09m L

Touchdown

Past threshold72.92
705m
Centreline97.49
2.25m L
Speed100.00
76kt
Touchdown rate77.11
-268fpm
Impact98.86
1.27G
BouncesOk
None
The crosswind

5 kt across from the left, which takes about 4° of crab to hold the centreline at 77 kt. Touched down with 1° of it still on, wings level.

Wind 300° at 17 kt · 17 kt head · 5 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 59 kt at touchdown to taxi speed (30 kt) in 14 s, an average deceleration of 0.12 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.

02040608030 kt · 328 mtouchdown341 mkt
Your ground speed60 kt and taxi speed

Side view — the last 1,522 m of the approach.

Crossed the threshold at 54 ft, close to the 50 ft target. Touched down 705 m in, 400 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 1,522 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.

54 ft over the threshold · target 50 ft FLARE NORMALLY STARTS 11–45 FT 80 ft400 −267 fpm · 5.7° nose up · 76 kt Ideal — 50 ft, down at 305 m This flight — 54 ft, down at 705 m

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

From 49 ft the descent stopped and turned into a climb of 240 fpm before coming down at 270 fpm to touch. The nose came up 2.6° 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 UP0−500−1,0000°5°10°touchdown−267 fpm at touchdown5.7° at touchdown
Sink ratePitchFlare began, descent slowedTouchdown

Plan view — the full 1,522 m runway, to the same scale as the side view.

Touched down 2.1 m left of the centreline, and stayed within 3 m of it down the rollout.

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 5 kn FULL SCORE TO 503 M 705 m past threshold ROLLOUT ENDED
Your trackTouchdownRolloutCentreline

Touched down 705 m past the threshold — beyond the full-score zone. The arrival was smooth.

Runway used 998 m of 1,522 m · 66 %
In the air over the runway, 705 mRollout, 294 m Left over, 524 m
Rollout distance100.00
294m65 % used
Rollout alignment94.83
3.02m L

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