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VNLK
Lukla, Nepal
Runway 24
Elevation9,337 ft asl
Weight10,804 lbs
Fuel904 lbs
Wind108° · 2 kn · 2 kn cross

Flight Score

84.60 %
VNLK
Lukla, Nepal
Runway 06
Elevation9,337 ft asl
Weight10,804 lbs
Fuel904 lbs
Wind123° · 1 kn · 1 kn cross
4 Aug 2026 0:02 2 nm Antonov An-2
Departure Score
96.36 %
Enroute Score
97.38 %
Arrival Score
60.06 %

What went well

Rollout controlled — 22 % of the runway used
Lifted off at 61 kt — on the 60 kt rotation target
Airborne in 1,010 ft — 57 % of the runway

What held you back

Arrival Landing — Threshold speed at 44 kt was well below target, take care not to stall. at 0 %, Touched down 52 ft short of the threshold, so it was never crossed in the air. at 0 %, −7.53 points
Arrival Touchdown — Touchdown rate was -2,566 fpm. at 0 %, bank angle up to 14.8 ° at 0 %, −4.37 points
Arrival Rollout — Runway alignment max 35.4 ft right at 72 %, −1.41 points

Next time

Departure

Apply small rudder corrections during the roll, aiming at a point at the far end to hold centreline within 18 ft.

What happened: The aircraft drifted off the runway centreline during the ground roll, reaching 18 ft off track, and excess bank of 2.2° showed up during the first climb segment. Drifting off centreline on the roll usually carries into extra bank correction once airborne.

Watch for: Watch the runway centreline marking and keep bank angle in the first climb under 2.2°.

See Departure RollDeparture Climb 1

Arrival

Add power on short final to hold speed at 64 kt, correcting the slow threshold speed before it carries through to the flare.

What happened: Threshold speed was slow at 44 kt against 64 kt, and touchdown followed short of the aim point at 52 ft. Crossing the threshold slow like this usually carries the touchdown short.

Watch for: Airspeed indicator against 64 kt on short final.

See Arrival LandingArrival Touchdown

Every knot above Vref is stored kinetic energy, and energy stored at the threshold must be dissipated in ground effect before the aeroplane will stop flying. Because kinetic energy scales with the square of speed, the excess you must dissipate grows fast. At a 45-knot approach, five knots hot is over a tenth more speed and roughly a quarter more energy to get rid of in ground effect. This is why the fix is never in the flare. It was decided three miles earlier, on final, at the airspeed indicator.

Read more in VRef Explained

Start to finish · 9 stages, 7 scored

The flight story

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 Runway Entry Entering runway 24 at VNLK Lukla Airport, Average speed was 5 kt.
ScoreDescriptionStartProfileEnd
Info Average speed 7 kt0 kt min to max 20 kt 0 20 kt
Info Average pitch angle 10.9 °10.6 ° min to max 11.0 ° 11.0 10.9 °
Info Average bank angle 0.0 °0.0 ° min to max 0.2 ° 0.0 0.1 °
Info Average g force 0.54 g0.00 g min to max 0.96 g 0.00 0.93 g

Events

Info Battery Master On 6 ft agl
Info Engine 1 Started 6 ft agl
Info Beacon Lights Switched On 6 ft agl
Info Navigation Lights Switched On 6 ft agl
Info Strobe Lights Switched On 6 ft agl
Info Taxi Lights Switched On 6 ft agl
Info Autopilot Master Switched On 6 ft agl
Info Landing Gear Activated 6 ft agl
Info Landing Gear Down 6 ft agl
Info Landing Gear Up 6 ft agl
Info Parking Brake On 6 ft agl
Info Flaps Position 3 6 ft agl
Info Landing Gear Down 6 ft agl
Info Parking Brake Off 6 ft agl · 1 kt
Info Flaps Position 1 6 ft agl · 2 kt
Departure Roll 93.32Departure roll runway 24 at VNLK Lukla Airport. Takeoff distance 1,010 ft 57 % of runway. Liftoff speed was 61 kt. Local weather - Temperature 55 °F. Wind 2 kt at 107 °. Crosswind: 2 kt Tailwind: 1 kt.
ScoreDescriptionStartProfileEnd
100 % Takeoff distance 1,010 ft57 % of runway
100 % Liftoff speed was 61 ktTarget 60 kt
92 % Runway alignment max 17.6 ft left17.6 ft left to 0.0 ft left 2.8 4.4 ft
100 % Average g force 0.96 g0.88 g min to max 1.01 g 0.93 1.00 g
100 % Takeoff Bounce
Info Average pitch angle -0.7 °-4.1 ° min to max 10.9 ° 10.9 -4.1 °
Info Average bank angle 0.8 °0.0 ° min to max 1.9 ° 0.5 0.3 °

Events

Fail Landing Lights
Departure Climb 1 95.91Departure climb to 50 ft agl from runway 24 VNLK Lukla Airport.
ScoreDescriptionStartProfileEnd
100 % Heading variation -0.1 °-0.2 ° min to max 0.0 ° -0.2 -0.0 °
100 % Average speed 72 kt61 kt min to max 80 kt 61 80 kt
84 % Average bank angle 2.2 °0.0 ° min to max 10.7 ° 0.3 10.7 °
100 % Average g force 1.03 g0.95 g min to max 1.13 g 0.99 0.99 g
Info Average VSI -870 fpm-892 fpm min to max -856 fpm -892 -856 fpm
Info Average altitude -54 ft agl-101 ft agl min to max 0 ft agl 0 -101 ft agl
Info Average pitch angle -2.9 °-5.0 ° min to max -1.2 ° -4.2 -1.5 °

Events

Info Flaps Fully Retracted 9 ft agl · 85 kt
Departure Climb 2 99.84Departure climb to 400 ft agl from 24 VNLK Lukla Airport.
ScoreDescriptionStartProfileEnd
100 % Heading variation -0.3 °-2.6 ° min to max -0.0 ° -0.0 -2.6 °
100 % Average speed 81 kt80 kt min to max 83 kt 80 83 kt
100 % Average bank angle 15.3 °11.1 ° min to max 23.8 ° 11.1 23.8 °
98 % Average g force 1.03 g0.99 g min to max 1.29 g 0.99 1.19 g
Info Average VSI -836 fpm-856 fpm min to max -538 fpm -856 -538 fpm
Info Average altitude -113 ft agl-147 ft agl min to max -102 ft agl -102 -147 ft agl
Info Average pitch angle -0.9 °-1.5 ° min to max 5.3 ° -1.5 5.3 °
Enroute Climb 97.38Enroute climb started overhead VNLK Lukla Airport Lukla (Province 1, Nepal). Climbing from 9,025 ft asl to 9,068 ft asl, an increase of 44 ft in 1 minutes and covering 2 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 73 kt65 kt min to max 83 kt 82 67 kt
95 % Average bank angle 20.6 °0.6 ° min to max 42.7 ° 25.8 2.5 °
96 % Average g force 1.08 g0.51 g min to max 1.82 g 1.21 0.80 g
Info Average VSI 1 fpm-562 fpm min to max 666 fpm -388 -86 fpm
Info Average altitude 9,093 ft asl9,025 ft asl min to max 9,155 ft asl 9,025 9,068 ft asl
Info Average pitch angle 5.0 °-6.9 ° min to max 11.8 ° 6.4 -2.2 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Flaps Position 1 646 ft agl · 81 kt
Info Flaps Position 2 663 ft agl · 79 kt
Arrival Landing 32.22Landing on runway 06 at VNLK Lukla Airport, runway length 1,776 ft. Touched down 52 ft short of the threshold, so it was never crossed in the air. Threshold speed at 44 kt was well below target, take care not to stall.
ScoreDescriptionStartProfileEnd
0 % Threshold speed at 44 kt was well below target, take care not to stall. Target 64 kt
0 % Touched down 52 ft short of the threshold, so it was never crossed in the air.Target 29 ft agl
36 % The flare strayed well off the target profile. The flare began at 1 ft agl above the runway, lower than this type wants. Touchdown was 52 ft short of the threshold. Begin raising the nose earlier - a late flare leaves no time to arrest the sink.
100 % Runway alignment max 1.9 ft left1.9 ft left to 1.9 ft right 1.9 -1.9 ft
82 % Average bank angle 7.4 °5.4 ° min to max 8.9 ° 8.9 5.4 °
100 % Average g force 1.00 g0.98 g min to max 1.02 g 1.02 0.98 g
Info Average speed 43 kt42 kt min to max 44 kt 44 42 kt
Info Average VSI -84 fpm-95 fpm min to max -72 fpm -72 -95 fpm
Info Average altitude -20 ft agl-21 ft agl min to max -19 ft agl -19 -21 ft agl
Info Average pitch angle 13.5 °12.9 ° min to max 14.4 ° 13.0 14.4 °
0489614319123907.3715222937Runway Distance ftLanding Height ft04896143191239-40-32-24-16-80816243240Runway Distance ftRunway Width ft
Arrival Touchdown 60.66Touchdown was 52 ft short of the threshold. Touchdown speed at 42 kt was good. Touchdown rate was very heavy at -2,566 fpm. Runway touchdown position was misaligned by 34 ft from centreline. Local weather - Temperature 55 °F. Wind 2 kt at 107 °. Crosswind: 2 kt Headwind: 1 kt.
ScoreDescriptionStartProfileEnd
0 % Touchdown rate was -2,566 fpm.
90 % Touched down 52 ft short of the thresholdTarget 1,092 ft
100 % Speed at touchdown 42 ktTarget below 62 kt
73 % Runway alignment max 34.4 ft right20.9 ft right -1.9 -34.4 ft
0 % Average bank angle 8.6 °0.1 ° min to max 14.8 ° 5.4 11.9 °
3 % Average g force 1.06 g0.68 g min to max 2.94 g 0.98 1.25 g
80 % Landing Bounce
Info Average speed 36 kt33 kt min to max 42 kt 42 34 kt
Info Average pitch angle 21.6 °14.4 ° min to max 25.2 ° 14.4 19.8 °

Events

Info Stall Warning Deactivated 8 ft agl · 47 kt
Info Stall Warning Activated 15 ft agl · 42 kt
Info Stall Warning Deactivated 7 ft agl · 40 kt
Arrival Rollout 87.30Total landing distance 663 ft, 37 % of runway. Runway rollout alignment was slightly misaligned by 35 ft from centreline.
ScoreDescriptionStartProfileEnd
100 % Landing distance 663 ft37 % of runway.
72 % Runway alignment max 35.4 ft right0.0 ft left to 35.4 ft right -34.6 -18.9 ft
100 % Average g force 0.98 g0.94 g min to max 1.10 g 1.10 0.98 g
Info Average speed 36 kt30 kt min to max 39 kt 39 30 kt
Info Average pitch angle 18.2 °17.6 ° min to max 20.0 ° 19.9 18.0 °
Info Average bank angle 2.8 °0.0 ° min to max 11.4 ° 11.4 0.7 °
Runway Exit Exiting runway, average speed 15 kt
ScoreDescriptionStartProfileEnd
Info Average speed 16 kt2 kt min to max 30 kt 30 2 kt
Info Average pitch angle 18.2 °18.0 ° min to max 18.4 ° 18.0 18.3 °
Info Average bank angle 0.2 °0.0 ° min to max 0.6 ° 0.6 0.0 °
Info Average g force 0.98 g0.97 g min to max 0.99 g 0.98 0.97 g

Events

Info Parking Brake On 6 ft agl · 2 kt

Takeoff

100.00Takeoff roll1,010 ft · 57 %
100.00Liftoff speed61 kt · target 60, 1 fast
91.61Runway alignment17.6 ft L
OkBounce on takeoffNone

Landing

The threshold, the flare and the hold-off. The approach that led to it is the stabilisation gates below.

FailThresholdnot crossed - landed short
100.00Centreline offset1.9 ft L
Flare 36.00The aircraft touched down before the threshold. Everything the flare is measured against - the profile, the crossing height, the aim point - is referenced to a threshold this landing never reached, so read the numbers below as what happened short of the runway, not on it. Landing short is the fault to fix before anything about the hold-off is worth judging.

The stabilisation gates

One stabilised approach gate: five checks where the approach path is 500 ft above the runway. The 1,000 ft gate was not assessed, because the approach did not join final that far out.

Five checks, one gate500 ft
Gear down
Sink rate
On glideslope
On centreline
On speed

The approach, gate by gate

Gate Height Centreline Speed
THR 2 ft 9.0 ft R −24 kt

Touchdown on VNLK 06

Past threshold90.40
-52ft
Centreline72.84
34.4ft R
Speed100.00
42kttarget 62 or less
Touchdown rate0.00
-2,566fpm
Impact3.43
2.94G
Bounces80.00
1

Side view — the last 1,776 ft of the approach.

-18 ft over the threshold · target 50 ft 80 ft400 Ideal — 50 ft, down at 1,000 ft This flight — -18 ft, down at -52 ft

Plan view — the full 1,776 ft runway, to the same scale as the side view.

1,000 THRESHOLD CROSS 1 kn FULL SCORE TO 1,201 FT 52 ft SHORT of the threshold CLEARED

Touched down 52 ft short of the threshold. The 2.94 G arrival is the firm side of smooth.

Runway used 302 ft of 1,776 ft · 17 %
Rollout distance100.00
302ft22 % used
Rollout alignment71.78
35.4ft R

The rest of the report

Explore in detail

Flight narrative

The Antonov An-2 taxied from the parking area to the runway in less than 1 minute, covering less than 1 nm before line-up for departure.

The aircraft commenced its departure roll on runway 24 at VNLK Lukla Airport, accelerating through a takeoff distance of 1,017 ft, which represented 57 % of the available runway. Liftoff was achieved at 61 kt. Ambient conditions were a temperature of 55 °F with a wind of 2 kt from 107°, including a 2 kt crosswind component and a 1 kt tailwind.

Climb began immediately after liftoff, with the An-2 climbing from 9,025 ft asl to 9,068 ft asl, an altitude gain of 44 ft achieved in 1 minute while covering 2 nm.

The final approach was executed to runway 06 at VNLK Lukla Airport from the south-west, maintaining a heading of 58.0° at 0 nm and an altitude of minus 277 ft agl.

Touchdown occurred before the runway threshold at a speed of 42 kt and a descent rate of minus 95 fpm. The touchdown point was offset by 34 ft from the centreline. Weather at the time mirrored the departure conditions, with a temperature of 55 °F, a 2 kt crosswind, and a 1 kt headwind.

Rollout continued for a total landing distance of 302 ft, representing 17 % of the runway length, and the aircraft remained slightly off centreline by 35 ft during the deceleration phase.

In total, the flight covered 2 nm, lasted 2 minutes, and consumed 0 lbs of fuel.

Flight map
Replay this flight in 3D The full flight path over the terrain with every stage, event and score along the route.
Takeoff report
Takeoff on runway 24 at VNLK Lukla Airport in the Antonov An-2
96.36 %
93.32 %
Takeoff Roll
Departure roll runway 24 at VNLK Lukla Airport. Takeoff distance 1,010 ft 57 % of runway. Liftoff speed was 61 kt. Local weather - Temperature 55 °F. Wind 2 kt at 107 °. Crosswind: 2 kt Tailwind: 1 kt.
Takeoff Distance
100 %
Roll distance of 1,010 ft using 56.65 % of runway
Liftoff Speed
100 %
Liftoff speed was 61 kn - Target 60 kn
Alignment
91.61 %
17.6 ft left to 0.0 ft left
Bounce
100 %
No Bounce Detected
Strobe Lights
100 %
Switched On
Landing Lights
0 %
Switched On
G
100 %
1.5 1 0.5
IAS kt
Info
70 40 10
Bank °
Info
2 1 0
Pitch °
Info
11 3.5 -4
01,000-40-30-20-10010203040 Runway Distance ft Runway Alignment to End of Runway ft
95.91 %
Climb 1
Departure climb to 50 ft agl from runway 24 VNLK Lukla Airport.
Alignment
100 %
2 0 -2
IAS kt
100 %
80 70 60
Bank °
83.63 %
11 5.5 0
G
100 %
1.5 1 0.5
Pitch °
Info
0 -2.5 -5
Climb Rate fpm
Info
-600 -800 -1,000
99.84 %
Climb 2
Departure climb to 400 ft agl from 24 VNLK Lukla Airport.
Alignment
100 %
2 0 -2
IAS kt
100 %
90 80 70
Bank °
100 %
24 18 11
G
98.44 %
1.5 1 0.5
Pitch °
Info
6 2.5 -1
Climb Rate fpm
Info
-400 -650 -900
01,00001836547290 Runway Distance ft Height at End of Runway ft
00.040.090.130.170.2100.20.40.60.81 Climb Distance NM Climb Profile to 1,000 ft
00.040.090.130.170.21-200-160-120-80-4004080120160200 Climb Distance NM Runway Alignment in (ft) to 1,000 ft
Landing report
Landing on runway 06 at VNLK Lukla Airport in the Antonov An-2
Landing Score 60.06 %
Landing Summary

The final approach to runway 06 at VNLK Lukla Airport was flown from the south-west on a heading of 58.0 ° at 0 nm and -277 ft AGL. Local weather was 55 °F with wind 2 kt from 107 °, providing a 2 kt crosswind component and a 1 kt headwind component.

During the threshold and flare segment the aircraft began its flare before reaching the runway threshold, resulting in ground contact prior to the threshold line.

Touchdown occurred at a speed of 42 kt, which the data describes as good, and the vertical speed was -95 fpm, rated as excellent. The touchdown point was misaligned by 34 ft from the centreline, and the total landing distance measured 302 ft, representing 17 % of the runway length.

Rollout alignment was slightly misaligned, with the aircraft deviating 35 ft from the centreline while decelerating to a stop.

To refine the performance, aim to achieve touchdown beyond the runway threshold to utilize the full available landing distance, and adjust the approach path to reduce lateral deviation and keep the aircraft within a tighter centreline corridor.

32.22 %
Landing
Landing on runway 06 at VNLK Lukla Airport, runway length 1,776 ft. Touched down 52 ft short of the threshold, so it was never crossed in the air. Threshold speed at 44 kt was well below target, take care not to stall.
Height
0 %
Touched down 52 ft short of the threshold, so it was never crossed in the air. Target 50 ft agl
Speed
0 %
Threshold speed at 44 kt was well below target, take care not to stall. Target 64 kt
Flare
36 %
The flare strayed well off the target profile. The flare began at 1 ft agl above the runway, lower than this type wants. Touchdown was 52 ft short of the threshold. Begin raising the nose earlier - a late flare leaves no time to arrest the sink.
Centreline ft
100 %
100 0 -100
Bank °
82.2 %
9 7 5
G
100 %
1.5 1 0.5
IAS kt
Info
44 42 40
Pitch °
Info
15 14 12
Descent Rate fpm
Info
-72 -86 -100
0489614319123907.3715222937 Runway Distance ft Landing Height ft
04896143191239-40-32-24-16-80816243240 Runway Distance ft Runway Width ft
60.66 %
Touchdown
Touchdown was 52 ft short of the threshold. Touchdown speed at 42 kt was good. Touchdown rate was very heavy at -2,566 fpm. Runway touchdown position was misaligned by 34 ft from centreline. Local weather - Temperature 55 °F. Wind 2 kt at 107 °. Crosswind: 2 kt Headwind: 1 kt.
Touchdown
0 %
Touchdown rate was very heavy at -2,566 fpm.
Speed
100 %
Touchdown speed at 42 kt was good. Target below 62 kn
Distance
100 %
Touchdown was 52 ft short of the threshold.
Alignment
72.84 %
Runway touchdown position was misaligned by 34 ft from centreline.
Bank
0 %
Bank angle 8.6 °
G
3.43 %
G 1.06 g
Bounce
80 %
Bounce Detected
87.3 %
Rollout
Total landing distance 663 ft, 37 % of runway. Runway rollout alignment was slightly misaligned by 35 ft from centreline.
Distance
100 %
Landing distance 663 ft using 37.33 % of runway
Alignment
71.78 %
Runway rollout alignment was slightly misaligned by 35 ft from centreline.
G
100 %
1.25 1 0.75
IAS kt
Info
34 27 20
Bank °
Info
12 6 0
Pitch °
Info
21 19 17
0500 Runway Distance ft Runway Width ft
Metrics
Metrics

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