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KJAC
Jackson, United States
Runway 01
Elevation6,411 ft asl
Weight20,144 kg
Fuel4,497 kg
WindCalm

Flight Score

76.79 %
KJAC
Jackson, United States
Runway 01
Elevation6,411 ft asl
Weight19,011 kg
Fuel3,235 kg
Wind8° · 1 kn
20 Sep 2026 0:11 29 nm Lockheed Martin F-35 Lightning II 1,263 kg
Departure Score
94.08 %
Enroute Score
51.01 %
Arrival Score
85.29 %

What went well

Touchdown 146 m in — inside the full-score zone
Straight touchdown — 2.75 m off the centreline, no bounce
Flare on profile — 93 %

What held you back

Enroute Descent — 250 kt exceeded below 10,000 ft, then GPWS warning; bank angle up to 96.1 ° at 0 %, g force 0.96 to 4.43 g at 35 %, −8.23 points
Enroute Level — bank angle up to 134.0 ° at 0 %, g force 1.08 to 4.47 g at 17 %, −8.10 points
Arrival Approach — GPWS warning; 300 ft gate 40 %, −4.00 points

Next time

Departure

Hold the nose down until the speed reaches 180 kt, then rotate.

What happened: You started the rotation at 138 kt, 42 kt before the 180 kt rotation speed.

Watch for: Airspeed indicator: 180 kt at rotation

See Departure Roll

Arrival

Reduce power earlier on final to bring the speed back to 130 kt well before the gate.

What happened: This flight was 91 kt fast at the stabilisation gate, and excess speed like this usually rides down the approach to cross the threshold still fast, as it did here at 146 kt against 130 kt.

Watch for: Airspeed indicator: 130 kt at the gate, 130 kt at the threshold

See Arrival ApproachArrival Landing

Preparing for a stable approach will give you time to decide on whether to attempt the landing or going around. Too much altitude with a high sink rate will result in carrying too much speed onto the runway. Configuring flaps and the gear late also won't help the speed decay.

Read more in The Stabilised Approach

Start to finish · 18 stages, 12 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 98.00Taxiing from the parking to the runway took 6 minutes and covered less than 1 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 9 kt0 kt min to max 19 kt 0 17 kt
95 % Average speed turning corners 17 ktmax 18 kt 0 0 kt
100 % Average g force 1.00 g0.99 g min to max 1.01 g 1.00 1.00 g
Info Average pitch angle 1.4 °-0.4 ° min to max 1.9 ° -0.4 1.9 °
Info Average bank angle 0.1 °0.0 ° min to max 0.7 ° 0.0 0.1 °

Events

Info Battery Master On 6 ft agl
Info Engine 1 Started 6 ft agl
Info Autopilot Master Switched On 6 ft agl
Info Landing Gear Down 6 ft agl
Info Parking Brake On 6 ft agl
Info Strobe Lights Switched On 6 ft agl
Info Navigation Lights Switched On 6 ft agl
Info Parking Brake Off 6 ft agl
Info Flaps Position 1 6 ft agl · 4 kt
Departure Runway Entry Entering runway 01 at KJAC Jackson Hole Airport, Average speed was 16 kt.
ScoreDescriptionStartProfileEnd
Info Average speed 17 kt17 kt min to max 18 kt 17 18 kt
Info Average pitch angle 1.9 °1.9 ° min to max 1.9 ° 1.9 1.9 °
Info Average bank angle 0.1 °0.1 ° min to max 0.1 ° 0.1 0.1 °
Info Average g force 1.00 g1.00 g min to max 1.00 g 1.00 1.00 g
Departure Roll 87.63Departure roll runway 01 at KJAC Jackson Hole Airport. Takeoff distance 641 m 33 % of runway. Rotation speed was 138 kt. Local weather - Temperature 5 °C. Wind 0 kt at 357 °. Crosswind: 0 kt Headwind: 0 kt.
ScoreDescriptionStartProfileEnd
100 % Takeoff distance 641 m33 % of runway
63 % Rotation speed was 138 ktTarget 180 kt
100 % Runway alignment max 2.36 m left2.36 m left to 0.00 m left 1.24 1.17 m
100 % Average g force 0.99 g0.93 g min to max 1.12 g 1.00 1.09 g
100 % Takeoff Bounce
Info Average pitch angle 1.8 °1.1 ° min to max 5.9 ° 1.8 4.4 °
Info Average bank angle 0.1 °0.0 ° min to max 0.7 ° 0.1 0.7 °

Events

Fail Landing Lights
Departure Climb 1 93.85Departure climb to 50 ft agl from runway 01 KJAC Jackson Hole Airport.
ScoreDescriptionStartProfileEnd
100 % Heading variation -0.0 °-0.1 ° min to max 0.1 ° -0.1 0.1 °
100 % Average speed 165 kt153 kt min to max 173 kt 153 173 kt
84 % Average bank angle 3.2 °0.1 ° min to max 10.6 ° 1.0 6.1 °
78 % Average g force 1.33 g0.63 g min to max 1.70 g 1.01 1.61 g
Info Average VSI 1,013 fpm402 fpm min to max 1,674 fpm 402 1,674 fpm
Info Average altitude 6 ft agl0 ft agl min to max 22 ft agl 0 22 ft agl
Info Average pitch angle 10.5 °2.1 ° min to max 17.8 ° 3.2 17.8 °
Departure Climb 2 94.17Departure climb to 400 ft agl from 01 KJAC Jackson Hole Airport.
ScoreDescriptionStartProfileEnd
100 % Heading variation 0.2 °0.1 ° min to max 0.6 ° 0.1 0.6 °
100 % Average speed 179 kt173 kt min to max 206 kt 173 206 kt
87 % Average bank angle 6.1 °0.1 ° min to max 9.5 ° 3.9 0.1 °
74 % Average g force 1.37 g0.43 g min to max 1.62 g 1.61 0.56 g
Info Average VSI 2,647 fpm1,742 fpm min to max 4,351 fpm 1,742 3,808 fpm
Info Average altitude 76 ft agl24 ft agl min to max 308 ft agl 24 308 ft agl
Info Average pitch angle 17.0 °10.4 ° min to max 19.5 ° 17.9 10.4 °

Events

Info Flaps Fully Retracted 246 ft agl · 210 kt
Info Landing Gear Up 371 ft agl · 228 kt
Departure Climb 3 96.75Departure climb to 1,000 ft agl from 01 KJAC Jackson Hole Airport.
ScoreDescriptionStartProfileEnd
100 % Climb speed 240 kt214 kt min to max 263 ktTarget 250 kt, 10 kt slow 214 263 kt
100 % Average bank angle 8.2 °4.1 ° min to max 20.6 ° 4.1 20.6 °
68 % Average g force 1.35 g0.88 g min to max 2.38 g 0.88 2.38 g
100 % Landing gear up at 242 ft aglTarget by 400 ft agl
Info Heading variation 1.2 °0.8 ° min to max 1.7 ° 0.8 1.7 °
Info Average VSI 3,951 fpm3,270 fpm min to max 5,562 fpm 3,418 5,562 fpm
Info Average altitude 548 ft agl369 ft agl min to max 748 ft agl 369 748 ft agl
Info Average pitch angle 13.5 °10.0 ° min to max 23.0 ° 10.0 23.0 °

Events

Info Autopilot Flight Director Activated 664 ft agl · 278 kt
Info Autopilot Yaw Damper Activated 664 ft agl · 278 kt
Info Autopilot Bank Hold Activated 664 ft agl · 278 kt
Enroute Level 51.39Enroute level cruise started overhead KJAC Jackson Hole Airport Jackson (Wyoming, United States) and lasted less than 1 minute. , covering 1 nm.
ScoreDescriptionStartProfileEnd
99 % Altitude held within ±865 ft of 8,202 ft asl7,293 ft asl min to max 8,886 ft asl 7,293 7,678 ft asl
100 % Average speed 219 kt195 kt min to max 251 kt 251 251 kt
0 % Average bank angle 67.7 °21.9 ° min to max 134.0 ° 22.0 21.9 °
17 % Average g force 2.40 g1.08 g min to max 4.47 g 4.47 1.28 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 5.5 °-15.9 ° min to max 50.2 ° 35.9 -6.0 °
Enroute Descent 50.64Enroute descent started overhead KJAC Jackson Hole Airport Jackson (Wyoming, United States). Descent from 7,603 ft asl to 6,534 ft asl, a decrease of 1,068 ft in 1 minutes and covering 3 nm.
ScoreDescriptionStartProfileEnd
93 % Average speed 272 kt204 kt min to max 332 kt 259 258 kt
0 % Average bank angle 39.5 °0.4 ° min to max 96.1 ° 20.7 30.8 °
35 % Average g force 2.42 g0.96 g min to max 4.43 g 1.08 2.45 g
Info Average VSI -2,145 fpm-7,113 fpm min to max 5,895 fpm -4,494 -3,028 fpm
Info Average altitude 6,992 ft asl6,534 ft asl min to max 7,603 ft asl 7,603 6,534 ft asl
Info Average pitch angle -0.5 °-13.7 ° min to max 14.8 ° -6.5 3.1 °
Info Turn coordination 00 min to max 0 0 0

Events

Fail Exceeded 250 kn below 10000 ft 7,602 ft agl
Fail GPWS Warning Activated 984 ft agl · 306 kt
Fail GPWS Warning Activated 979 ft agl · 246 kt
Fail Exceeded 250 kn below 10000 ft 6,559 ft agl
Info GPWS Warning Deactivated 419 ft agl · 362 kt
Info Stall Warning Activated 1,055 ft agl · 275 kt
Info Stall Warning Deactivated 1,037 ft agl · 258 kt
Info Stall Warning Activated 893 ft agl · 235 kt
Info Stall Warning Deactivated 791 ft agl · 232 kt
Info Stall Warning Activated 667 ft agl · 226 kt
Info Stall Warning Deactivated 538 ft agl · 226 kt
Arrival Landing (GA) 17.72Not counted in the flight scoreLanding on runway 01 at KJAC Jackson Hole Airport, runway length 1,921 m. Threshold height at 92 ft agl was significantly above target. Threshold speed was excessively high at 258 kt.
ScoreDescriptionStartProfileEnd
0 % Threshold speed was excessively high at 258 kt. Target 131 kt
18 % Threshold height at 92 ft agl was significantly above target.Target 50 ft agl
52 % The flare strayed well off the target profile. Crossing the threshold 127 kt above target, the flare took all the sink out 41 ft agl above the runway and the aircraft then dropped the rest of the way, 434 fpm of sink coming back. Touchdown was 146 m past the threshold. Hold the attitude and let it settle rather than pushing - that excess speed is what turns a normal flare into a balloon, so the fix is on the approach, not in the flare.
2 % Runway alignment max 2,018.30 m right587.86 m left to 2,018.30 m right -32.22 -31.33 m
0 % Average bank angle 29.3 °0.1 ° min to max 173.4 ° 31.1 6.9 °
0 % Average g force 1.68 g-0.13 g min to max 6.10 g 2.47 1.37 g
Info Average speed 355 kt258 kt min to max 445 kt 258 410 kt
Info Average VSI -430 fpm-7,566 fpm min to max 13,199 fpm -2,943 -38 fpm
Info Average altitude 431 ft agl28 ft agl min to max 2,416 ft agl 92 28 ft agl
Info Average pitch angle 1.5 °-9.6 ° min to max 23.5 ° 3.3 2.4 °

Events

Fail GPWS Warning Activated still on from Enroute Descent 979 ft agl · 246 kt
Fail GPWS Warning Activated 182 ft agl · 336 kt
Fail GPWS Warning Activated 953 ft agl · 494 kt
Fail GPWS Warning Activated 949 ft agl · 390 kt
Fail GPWS Warning Activated 578 ft agl · 371 kt
Info GPWS Warning Deactivated 92 ft agl · 302 kt
Info GPWS Warning Deactivated 208 ft agl · 345 kt
Info GPWS Warning Deactivated 1,010 ft agl · 492 kt
Info GPWS Warning Deactivated 606 ft agl · 372 kt
Info Autopilot Yaw Damper Deactivated 44 ft agl · 436 kt
Info Autopilot Bank Hold Deactivated 44 ft agl · 436 kt
Go-around Go-Around runway 01 at KJAC Jackson Hole Airport at 57 ft agl.
ScoreDescriptionStartProfileEnd
100 % Average speed 310 kt208 kt min to max 419 kt 411 243 kt
0 % Average bank angle 37.9 °0.0 ° min to max 176.0 ° 7.0 4.4 °
12 % Average g force 2.56 g0.36 g min to max 5.30 g 1.40 1.51 g
Info Average altitude 1,482 ft agl57 ft agl min to max 5,583 ft agl 57 104 ft agl
Info Average pitch angle -0.3 °-52.1 ° min to max 72.7 ° 2.5 0.9 °

Events

Fail GPWS Warning Activated still on from Arrival Landing (GA) 578 ft agl · 371 kt
Fail Exceeded 250 kn below 10000 ft 6,468 ft agl
Fail GPWS Warning Activated 949 ft agl · 273 kt
Info Autopilot Yaw Damper Activated 75 ft agl · 455 kt
Info Autopilot Bank Hold Activated 75 ft agl · 455 kt
Info GPWS Warning Deactivated 75 ft agl · 455 kt
Info Autopilot Altitude Hold Activated 1,136 ft agl · 435 kt
Info Stall Warning Activated 5,646 ft agl · 274 kt
Info Stall Warning Deactivated 5,668 ft agl · 273 kt
Info Stall Warning Activated 5,477 ft agl · 272 kt
Info Stall Warning Deactivated 5,243 ft agl · 269 kt
Info Stall Warning Activated 4,934 ft agl · 263 kt
Info Stall Warning Deactivated 3,578 ft agl · 241 kt
Arrival Landing (GA) 23.80Not counted in the flight scoreLanding on runway 01 at KJAC Jackson Hole Airport, runway length 1,921 m. Good threshold height. Threshold speed was excessively high at 265 kt.
ScoreDescriptionStartProfileEnd
0 % Threshold speed was excessively high at 265 kt. Target 130 kt
0 % Good threshold height.Target 50 ft agl
86 % The flare mostly held the target profile. The flare began at 151 ft agl above the runway, higher than this aircraft wants. Touchdown was 146 m past the threshold. Hold the aim point and let the runway come to you rather than anticipating the flare.
22 % Runway alignment max 1,052.65 m left1,052.65 m left to 113.46 m right 47.46 16.32 m
0 % Average bank angle 20.3 °0.0 ° min to max 173.1 ° 6.0 19.0 °
0 % Average g force 1.40 g0.13 g min to max 5.81 g 1.44 1.95 g
Info Average speed 340 kt154 kt min to max 429 kt 265 429 kt
Info Average VSI -299 fpm-35,708 fpm min to max 37,029 fpm -57 -231 fpm
Info Average altitude 858 ft agl5 ft agl min to max 9,538 ft agl 32 5 ft agl
Info Average pitch angle 0.3 °-87.1 ° min to max 77.8 ° 4.0 5.8 °

Events

Fail GPWS Warning Activated still on from Go-around 949 ft agl · 273 kt
Fail GPWS Warning Activated 45 ft agl · 328 kt
Fail GPWS Warning Activated 672 ft agl · 390 kt
Fail GPWS Warning Activated 300 ft agl · 359 kt
Info Autopilot Yaw Damper Activated 61 ft agl · 298 kt
Info Autopilot Bank Hold Activated 61 ft agl · 298 kt
Info GPWS Warning Deactivated 61 ft agl · 298 kt
Info Autopilot Yaw Damper Deactivated 45 ft agl · 328 kt
Info Autopilot Bank Hold Deactivated 45 ft agl · 328 kt
Info GPWS Warning Deactivated 37 ft agl · 370 kt
Info Autopilot Yaw Damper Activated 62 ft agl · 417 kt
Info Autopilot Bank Hold Activated 62 ft agl · 417 kt
Info GPWS Warning Deactivated 279 ft agl · 326 kt
Info Autopilot Yaw Damper Deactivated 48 ft agl · 441 kt
Info Autopilot Bank Hold Deactivated 48 ft agl · 441 kt
Go-around Go-Around runway 01 at KJAC Jackson Hole Airport at 34 ft agl.
ScoreDescriptionStartProfileEnd
100 % Average speed 309 kt166 kt min to max 432 kt 429 166 kt
0 % Average bank angle 48.8 °0.4 ° min to max 179.4 ° 18.1 9.3 °
25 % Average g force 2.65 g0.74 g min to max 5.48 g 2.66 1.17 g
Info Average altitude 2,021 ft agl34 ft agl min to max 7,270 ft agl 34 145 ft agl
Info Average pitch angle 3.2 °-80.1 ° min to max 70.7 ° 6.0 1.8 °

Events

Fail GPWS Warning Activated still on from Arrival Landing (GA) 300 ft agl · 359 kt
Fail Exceeded 250 kn below 10000 ft 6,445 ft agl
Fail Exceeded 250 kn below 10000 ft 9,486 ft agl
Fail GPWS Warning Activated 882 ft agl · 238 kt
Info GPWS Warning Deactivated 41 ft agl · 470 kt
Info Autopilot Yaw Damper Activated 151 ft agl · 466 kt
Info Autopilot Bank Hold Activated 151 ft agl · 466 kt
Info Autopilot Yaw Damper Deactivated 1,678 ft agl · 278 kt
Info Autopilot Bank Hold Deactivated 1,678 ft agl · 278 kt
Info Landing Gear Down 1,678 ft agl · 278 kt
Info Flaps Position 1 1,240 ft agl · 259 kt
Arrival Approach 40.00Final approach to runway 01 at KJAC Jackson Hole Airport. Descent from 1,419 ft agl to 46 ft agl in 18 seconds. Scored on the stabilisation gates.
ScoreDescriptionStartProfileEnd
100 % Gear downpassed
100 % Landing flappassed
0 % Sink ratefailed
0 % On glideslopefailed
0 % On speedfailed

Events

Fail GPWS Warning Activated 882 ft agl · 238 kt
Info Flaps Position 1 1,240 ft agl · 259 kt
Info GPWS Warning Deactivated 32 ft agl · 165 kt
Arrival Landing 93.54Landing on runway 01 at KJAC Jackson Hole Airport, runway length 1,921 m. Good threshold height. Threshold speed was well above target at 146 kt.
ScoreDescriptionStartProfileEnd
88 % Threshold speed was well above target at 146 kt. Target 130 kt
100 % Good threshold height.Target 50 ft agl
93 % The flare held the target profile well. The flare began at 83 ft agl above the runway, higher than this aircraft wants. Touchdown was 146 m past the threshold. Hold the aim point and let the runway come to you rather than anticipating the flare.
100 % Runway alignment max 5.87 m left5.87 m left to 3.08 m left 5.87 3.08 m
82 % Average bank angle 5.9 °0.1 ° min to max 8.8 ° 0.4 0.1 °
100 % Average g force 1.15 g1.12 g min to max 1.22 g 1.22 1.12 g
Info Average speed 141 kt136 kt min to max 146 kt 146 136 kt
Info Average VSI -687 fpm-936 fpm min to max -468 fpm -936 -468 fpm
Info Average altitude 5 ft agl-4 ft agl min to max 15 ft agl 15 -4 ft agl
Info Average pitch angle 7.7 °6.6 ° min to max 9.2 ° 6.6 9.2 °
07515022530001123344657Runway Distance mLanding Height ft075150225300-24-20-16-12-8-404812162024Runway Distance mRunway Width m
Arrival Touchdown 92.92Touchdown distance was good at 146 m. Touchdown speed at 136 kt was a little fast. Touchdown rate was firm at -301 fpm. Runway touchdown position was slightly misaligned by 3.1 m from centreline. Local weather - Temperature 4 °C. Wind 0 kt at 357 °. Crosswind: 0 kt Headwind: 0 kt.
ScoreDescriptionStartProfileEnd
73 % Touchdown rate was -301 fpm.
100 % Touchdown distance was 146 mTarget 457 m
100 % Speed at touchdown 136 ktTarget below 126 kt
100 % Runway alignment max 3.08 m left2.93 m left 3.08 2.75 m
78 % Average bank angle 1.6 °0.1 ° min to max 3.8 ° 0.1 3.8 °
90 % Average g force 1.21 g1.12 g min to max 1.42 g 1.12 1.17 g
100 % Landing Bounce
Info Average speed 135 kt133 kt min to max 136 kt 136 133 kt
Info Average pitch angle 8.8 °8.5 ° min to max 9.2 ° 9.2 8.5 °
Arrival Rollout 99.99Total landing distance 1,206 m, 63 % of runway. Runway rollout alignment was perfect.
ScoreDescriptionStartProfileEnd
100 % Landing distance 1,206 m63 % of runway.
100 % Runway alignment max 1.21 m right0.00 m left to 1.21 m right -1.03 -1.21 m
99.9 % Average g force 1.02 g0.78 g min to max 1.15 g 1.13 1.01 g
Info Average speed 129 kt75 kt min to max 145 kt 145 75 kt
Info Average pitch angle 4.2 °1.5 ° min to max 9.0 ° 8.6 1.6 °
Info Average bank angle 1.1 °0.0 ° min to max 4.1 ° 4.0 0.1 °
Runway Exit Exiting runway, average speed 39 kt
ScoreDescriptionStartProfileEnd
Info Average speed 42 kt16 kt min to max 71 kt 71 17 kt
Info Average pitch angle 1.4 °-1.0 ° min to max 2.1 ° 1.7 -0.0 °
Info Average bank angle 0.3 °0.0 ° min to max 1.3 ° 0.1 0.5 °
Info Average g force 1.00 g0.98 g min to max 1.01 g 1.00 1.01 g

Events

Info Strobe Lights Switched Off 6 ft agl · 16 kt
Arrival Taxi 100.00Taxiing to the parking from the runway took 4 minutes and covered 1 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 18 kt4 kt min to max 27 kt 17 4 kt
100 % Average speed turning corners 10 ktmax 18 kt 0 0 kt
100 % Average g force 1.00 g1.00 g min to max 1.01 g 1.00 1.00 g
Info Average pitch angle 1.6 °0.1 ° min to max 1.8 ° 0.1 1.5 °
Info Average bank angle 0.2 °0.0 ° min to max 1.0 ° 0.0 0.0 °

Events

Info Flaps Fully Retracted 6 ft agl · 24 kt

Speed and pitch

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

Rotated at 138 kt, 42 kt below the 180 kt target, and lifted off at 152 kt 1.3 s later, the nose coming up at 1.4° a second. Climb 3 averaged 240 kt, 10 kt under its 250 kt target.

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 dashed green line is the speed to rotate at for this aircraft at its weight, and the green dot is where the nose started to come up. The figures at liftoff are the pitch then and how fast the nose came up, in degrees a second. The shaded stretch is Climb 3, the part of the climb scored on holding the climb speed.

Climb 3 target 250270 kt18090025°13°0°ROTATELIFTOFFGEAR UPtarget 1803.2° off · 1.4°/s18° at 35 ftAIRSPEEDPITCH01020 sfrom brake release
AirspeedPitchRotation speed targetRotation beganClimb 3

The takeoff, point by point

PointSpeedPitchTime
Brake release0 m 16 kt 1.8° 0 s
80 kt206 m 81 kt 1.7° 9.1 s
Rotate462 m · target 180 138 kt 1.4° 13.1 s
Liftoff571 m · +14 kt from rotation 152 kt 3.2° 14.4 s
35 ft881 m · 3.3 s after liftoff 175 kt 17.9° 17.7 s
Gear up1,224 m · 242 ft · full marks to 400 ft 198 kt 12.9° 21.7 s
Climb 31,455 m · 369 ft to 748 ft · target 250 240 kt avg 10.0° 23.8 s
End of Climb 32,267 m · 748 ft 263 kt 23.0° 29.2 s

Takeoff from KJAC 01

Taxi lightsOk
Set
Takeoff roll100.00
641m33 %
Rotation speed63.16
138kttarget 180, 42 slow
Liftoff speed
152kt
Runway alignment100.00
2.36m L
Bounce on takeoffOk
None
Gear up100.00
242ftfull marks to 400 ft
Climb 3 speed100.00
240kttarget 250
Rate of climb93.85
1,012fpm

Side view from the start of the roll to the end of Climb 3 at 748 ft.

Reached 35 ft with 963 m of runway left; gear up at 242 ft, inside the 400 ft that gets full marks; then climbing at 3,040 fpm on average to 748 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 gear-up ring is coloured by its mark. The shaded stretch is Climb 3, scored on its average speed against the target.

750 ft375 ft0CLIMB 3240 kt avgtarget 250THRESHOLDRUNWAY END6080100120KNOTS ALONG THE ROLLRotate 138 kttarget 180Liftoff 152 ktGear up 242 ftfull marks to 400 ft
On the runwayClimbingLast quarter of the runwayGear upClimb 3

Plan view the roll down the 1,921 m runway.

Rolled from 78 m in, drifted 2.3 m left of the centreline and was back on it to lift off. Airborne 33 % 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.

5001,0001,500THRESHOLDLEFT ↑RIGHT ↓75 %widest 2.33 m LROLL 78 M INAirborne 649 m from the threshold
Your trackRunway used in the rollCentreline75 %: lift off before it for full marks
Runway to liftoff 649 m of 1,921 m · 34 %
Behind the start of the roll, 78 mTakeoff roll, 571 m Left ahead, 1,272 m

The stabilisation gates

One stabilised approach gate: five checks where the approach path is 300 ft above the runway. The 1,000 ft gate was not assessed, because the approach did not join final that far out. These checks are the approach's score.

Five checks, one gate300 ft 40.002 of 5
Gear down
Landing flap
Sink rate7,070 fpm
On glideslope9.1°
On speed+91 kt

At the 300 ft gate: sink rate more than 600 fpm beyond what the glideslope needed, glideslope more than 1° off the runway's 3° and speed more than 16 kt above the approach speed of 130 kt.

Still turning onto final at the lower gate, so the centreline and wings level are not asked there - the aeroplane was not lined up yet, and was banked because it was turning. The other checks are marked as usual.

When the approach was stable

Never every check met at once: sinking too fast all the way, high all the way, fast all the way, banked until 0.6 nm, left of the centreline from 1.1 nm to the threshold.

How to read this

Each line is one of the gate checks, run along the whole final rather than only at the gates: green where it would have passed, amber where it would not. The glideslope, centreline and speed lines use the bands in the charts beside this card. The sink rate is allowed what the glideslope needs at your ground speed plus 600 fpm, the wings 10° of bank, and the gear and flap are read from when you moved the levers. The bottom line is green where every check held at once, ignoring blips shorter than 0.2 nm, and the sentence above it says from where it held to the threshold. A ring is a stabilisation gate, where the checks in the table were taken.

Gear downLanding flapSink rateOn glideslopeOn centrelineOn speedWings levelAll checks4 nm321THR
Check metNot metStabilisation gate

The approach to KJAC 01

The final from 4 nm, with the stabilisation gates on it.

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

High from 1.3 nm, where the final began, to the threshold (up to 1,280 ft over).

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. A ring is a stabilisation gate: green when every check there passed, amber with the failed checks named beside it.

5001,0001,5002,000 ft4 nm3 nm2 nm1 nmTHRON SLOPE1,3301,0106903703° GLIDESLOPE · 1° BAND418300 ft gate2 of 5sink rateon glideslopeon speed1,052 ft · 221 kt
GlideslopeAllowed bandYou, inside the bandYou, outside itYour height thereStabilisation gate

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.

Inside the 1° band from 1.3 nm, where the final began, to 1.1 nm, then 125 m left of it from 1.1 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° BAND95 m L121 m L
Extended centreline1° either sideYour trackOutside the bandStabilisation gate

Speed against the approach speed. The green band runs from 5 kt slow to 33 kt fast at the 1,000 ft gate, closing to 20 at 500 ft and 10 at the threshold.

Fast from 1.3 nm, where the final began, to the threshold (up to +117 kt).

How to read this

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.

120160200240 kt4 nm3 nm2 nm1 nmTHRAPPROACH SPEED 130+59 kt+16 kt
Your airspeedApproach speedWhat the gates allowOutside the bandStabilisation gate

Landing and touchdown on KJAC 01

Over the threshold

Threshold height100.00
15ft
Threshold speed88.36
146kttarget 130, 16 fast
Centreline offset100.00
5.87m L

Touchdown

Past threshold100.00
146m
Centreline100.00
3.08m L
Speed100.00
136kttarget 126, 10 fast
Touchdown rate72.55
-301fpm
Impact90.29
1.42G
BouncesOk
None
The flare93.00

The flare held the target profile well. The flare began at 83 ft agl above the runway, higher than this aircraft wants. Touchdown was 146 m past the threshold. Hold the aim point and let the runway come to you rather than anticipating the flare.

The crosswind

No crosswind: nothing to correct for. Touched down with the nose 2° right of the track, wings level.

Wind 008° at 1 kt · 1 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 149 kt at touchdown to taxi speed (30 kt) in 44 s, an average deceleration of 0.14 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.

0408012016060 kt · 1,259 m30 kt · 1,701 mtouchdown1,769 mkt
Your ground speed60 kt and taxi speed

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

Began the flare high, at 83 ft, 324 m before the threshold; crossed the threshold at 15 ft, 35 ft below the 50 ft target. Touched down 146 m in, 159 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.

15 ft over the threshold · target 50 ft FLARE NORMALLY STARTS 11–45 FT 80 ft400 Flare began at 83 ft, 324 m before the threshold−2,684 fpm · 2° · 166 ktdescent slowed at 0 ft · −301 fpm · 9.2°−301 fpm · 9.2° nose up · 136 kt Ideal — 50 ft, down at 305 m This flight — 15 ft, down at 146 m

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

The sink went from 2,680 fpm at the flare to 300 fpm at touchdown. The nose came up 7.3° 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°descent slowedtouchdown−301 fpm at touchdown9.2° at touchdown, +7.3° from the flare
Sink ratePitchFlare began, descent slowedTouchdown

Plan view — the first 1,524 m of the 1,921 m runway, to the same scale as the side view.

Touched down 2.8 m left of the centreline, and stayed about there down the rollout, 3.1 m left 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 146 m past threshold ROLLOUT ENDED
Your trackTouchdownRolloutCentreline

The 146 m touchdown sits inside the full-score zone. The 301 fpm arrival was firm.

Runway used 1,159 m of 1,921 m · 60 %
In the air over the runway, 146 mRollout, 1,013 m Left over, 763 m
Rollout distance100.00
1,013m60 % used
Rollout alignment100.00
1.21m R

The rest of the report

Explore in detail

Flight narrative

The F-35 Lightning II taxied from the parking area to runway 01 at KJAC Jackson Hole Airport in six minutes, covering less than 1 nm.

During the departure roll on runway 01, the aircraft used 641 m of runway, representing 33 % of the available length, and lifted off at 152 kt. Local weather at the time was 5 °C with wind calm from 357°, no cross-wind and no head-wind.

Level cruise commenced overhead KJAC and was maintained for one minute, during which the aircraft traveled four nautical miles.

A go-around was executed on runway 01 at an altitude of 57 ft agl.

A second go-around followed on the same runway, this time at 34 ft agl.

The final approach to runway 01 was flown, and the aircraft scored on the stabilisation gates.

During the descent phase the aircraft dropped from 1,533 ft agl to 46 ft agl in twenty seconds.

Landing on runway 01 occurred with a runway length of 1,921 m; the threshold height was good and the threshold speed was a little below target at 146 kt. Touchdown distance measured 148 m and touchdown speed was 136 kt, both described as good. The touchdown rate was hard at minus 468 fpm, and the touchdown point was slightly misaligned by 3.1 m from the centreline. Local weather at landing was 4 °C with wind calm from 357°, no cross-wind and no head-wind. Total landing distance was 1,206 m, representing 63 % of the runway.

Runway rollout alignment was perfect.

The aircraft taxied from the runway to the parking area in four minutes, covering one nautical mile.

In total the flight covered 29 nm, lasted eleven minutes, and consumed 1,263 kg of fuel.

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