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PALH
Anchorage, United States
Runway 43W

Flight Score

82.25 %
8AK6
Susitna Station, United States
Runway 35
21 Jun 2025 0:16 17 nm Grumman Goose 34 kg
Departure Score
86.42 %
Enroute Score
97.56 %
Arrival Score
62.76 %

What went well

Touchdown 275 m in — inside the full-score zone
Airborne in 108 m — 8 % of the runway

What held you back

Arrival Landing — Threshold speed was excessively high at 100 kt. at 0 %, Landing and flare profile at 0 %, −7.51 points
Arrival Touchdown — Speed at touchdown 96 kt at 27 %, Landing Bounce at 40 %, −3.70 points
Departure Roll — Takeoff Bounce at 0 %, Liftoff speed was 60 kt at 77 %, −3.21 points

Top opportunity

Keep the approach speed on target

Arrival Landing

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 · 11 stages, 10 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 43W at PALH Lake Hood Seaplane Base, Average speed was 29 kt.
ScoreDescriptionStartProfileEnd
Info Average speed 28 kt1 kt min to max 40 kt 1 40 kt
Info Average pitch angle 2.3 °1.3 ° min to max 3.4 ° 3.0 1.9 °
Info Average bank angle 0.3 °0.1 ° min to max 0.7 ° 0.7 0.3 °
Info Average g force 1.00 g0.97 g min to max 1.03 g 1.03 0.99 g

Events

Info Battery Master On 2 ft agl · 3 kt
Info Engine 1 Started 2 ft agl · 3 kt
Info Engine 2 Started 2 ft agl · 3 kt
Info Beacon Lights Switched On 2 ft agl · 3 kt
Info Landing Lights Switched On 2 ft agl · 3 kt
Info Navigation Lights Switched On 2 ft agl · 3 kt
Info Strobe Lights Switched On 2 ft agl · 3 kt
Departure Roll 71.08Departure roll runway 43W at PALH Lake Hood Seaplane Base. Takeoff distance 108 m 8 % of runway. Liftoff speed was 60 kt. Local weather - Temperature 15 °C. Wind 2 kt at 270 °. Crosswind: 0 kt Headwind: 2 kt.
ScoreDescriptionStartProfileEnd
100 % Takeoff distance 108 m8 % of runway
77 % Liftoff speed was 60 ktTarget 75 kt
79 % Runway alignment max 8.94 m0.00 m left to 8.94 m right -8.94 -7.92 m
100 % Average g force 0.99 g0.93 g min to max 1.11 g 0.99 0.99 g
0 % Takeoff Bounce
Info Average pitch angle 1.8 °0.3 ° min to max 3.1 ° 1.7 3.1 °
Info Average bank angle 0.2 °0.0 ° min to max 0.5 ° 0.3 0.5 °
Departure Climb 1 98.33Departure climb to 50 ft agl from runway 43W PALH Lake Hood Seaplane Base.
ScoreDescriptionStartProfileEnd
93 % Heading variation 1.0 °0.3 ° min to max 1.6 ° 1.6 0.3 °
100 % Average speed 79 kt60 kt min to max 95 kt 60 95 kt
100 % Average bank angle 0.9 °0.0 ° min to max 1.6 ° 0.5 1.6 °
100 % Average g force 0.98 g0.75 g min to max 1.24 g 0.87 1.03 g
Info Average VSI 458 fpm253 fpm min to max 580 fpm 253 393 fpm
Info Average altitude 7 ft agl-4 ft agl min to max 39 ft agl 0 39 ft agl
Info Average pitch angle 8.0 °2.6 ° min to max 11.8 ° 3.2 8.1 °
Departure Climb 2 89.84Departure climb to 400 ft agl from 43W PALH Lake Hood Seaplane Base.
ScoreDescriptionStartProfileEnd
100 % Heading variation -0.5 °-1.3 ° min to max 0.3 ° 0.3 0.3 °
100 % Average speed 101 kt94 kt min to max 106 kt 95 106 kt
59 % Average bank angle 8.3 °0.0 ° min to max 17.4 ° 1.6 17.4 °
100 % Average g force 1.16 g0.76 g min to max 1.30 g 1.03 0.88 g
Info Average VSI 895 fpm2 fpm min to max 1,561 fpm 395 1,412 fpm
Info Average altitude 187 ft agl40 ft agl min to max 385 ft agl 40 385 ft agl
Info Average pitch angle 11.7 °3.4 ° min to max 14.0 ° 8.1 9.8 °

Events

Info Flaps Position 1 71 ft agl · 98 kt
Info Bounce during liftoff 143 ft agl · 97 kt
Info Flaps Fully Retracted 242 ft agl · 95 kt
Enroute Climb 100.00Enroute climb started overhead LHD Lake Hood Anchorage (Alaska, United States). Climbing from 488 ft asl to 1,799 ft asl, an increase of 1,311 ft in 2 minutes and covering 4 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 120 kt106 kt min to max 126 kt 106 115 kt
100 % Average bank angle 6.1 °0.0 ° min to max 21.8 ° 19.8 21.6 °
100 % Average g force 1.01 g0.83 g min to max 1.40 g 0.91 0.86 g
Info Average VSI 567 fpm-132 fpm min to max 1,332 fpm 1,195 1,085 fpm
Info Average altitude 1,238 ft asl488 ft asl min to max 1,799 ft asl 488 1,799 ft asl
Info Average pitch angle 5.4 °1.5 ° min to max 11.3 ° 8.6 6.3 °
Info Turn coordination 00 min to max 0 0 0
Enroute Descent 99.54Enroute descent started overhead 6AK2 Sleepers Strip Airport Point Mackenzie (Alaska, United States). Descent from 1,810 ft asl to 1,249 ft asl, a decrease of 561 ft in 2 minutes and covering 3 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 127 kt115 kt min to max 138 kt 115 133 kt
100 % Average bank angle 5.1 °0.0 ° min to max 26.4 ° 22.5 0.1 °
95 % Average g force 1.01 g0.84 g min to max 1.66 g 0.99 0.93 g
Info Average VSI -346 fpm-1,825 fpm min to max 812 fpm 812 -584 fpm
Info Average altitude 1,672 ft asl1,249 ft asl min to max 1,911 ft asl 1,810 1,249 ft asl
Info Average pitch angle 0.9 °-7.0 ° min to max 6.8 ° 6.3 -1.0 °
Info Turn coordination 00 min to max 0 0 0
Enroute Level 90.68Enroute level cruise started 2 miles south east of 0AK9 Falcon Lake Strip Point Mackenzie (Alaska, United States) and lasted 9 minutes, covering 8 nm.
ScoreDescriptionStartProfileEnd
96 % Average altitude 511 ft asl150 ft asl min to max 1,237 ft asl 1,237 373 ft asl
100 % Average speed 116 kt79 kt min to max 154 kt 133 136 kt
79 % Average bank angle 5.5 °0.0 ° min to max 50.3 ° 0.0 14.6 °
100 % Average g force 1.03 g0.64 g min to max 1.37 g 0.92 1.06 g
Info Turn coordination 00 min to max 0 0 0
Info Average pitch angle 3.5 °-5.9 ° min to max 15.8 ° -1.6 -0.7 °

Events

Info Landing Gear Down 279 ft agl · 126 kt
Info Landing Gear Up 140 ft agl · 99 kt
Info Landing Gear Down 436 ft agl · 108 kt
Info Landing Gear Up 546 ft agl · 98 kt
Enroute Climb 2 100.00Enroute climb started overhead 8AK6 Little Susitna Airport Susitna Station (Alaska, United States). Climbing from 365 ft asl to 336 ft asl, an increase of 30 ft in 2 minutes and covering less than 1 nm.
ScoreDescriptionStartProfileEnd
100 % Average speed 115 kt98 kt min to max 136 kt 136 100 kt
100 % Average bank angle 11.2 °0.1 ° min to max 26.1 ° 13.0 2.8 °
100 % Average g force 1.03 g0.70 g min to max 1.31 g 1.31 1.09 g
Info Average VSI -18 fpm-1,324 fpm min to max 1,612 fpm -512 -944 fpm
Info Average altitude 700 ft asl316 ft asl min to max 1,112 ft asl 365 336 ft asl
Info Average pitch angle 3.1 °-3.9 ° min to max 11.9 ° 2.2 0.4 °
Info Turn coordination 00 min to max 0 0 0

Events

Info Landing Gear Down 999 ft agl · 114 kt
Info Flaps Position 1 664 ft agl · 113 kt
Arrival Final 1 89.16Approaching runway 35 at 8AK6 Little Susitna Airport from 1 nm to 0 nm. Descent from 254 ft agl to 81 ft agl. A decrease of 173 ft in 11 seconds.
ScoreDescriptionStartProfileEnd
54 % Approach angle 4.7 °4.6 ° min to max 4.9 °Target 3.0 ° 4.7 4.6 °
100 % Average speed 100 kt100 kt min to max 100 kt 100 100 kt
100 % Heading variation -0.1 °-0.2 ° min to max -0.0 ° -0.2 -0.2 °
92 % Average bank angle 2.1 °0.4 ° min to max 6.4 ° 4.4 1.9 °
100 % Average g force 1.01 g0.93 g min to max 1.09 g 1.09 1.03 g
Info Average VSI -865 fpm-944 fpm min to max -650 fpm -810 -936 fpm
Info Average altitude 146 ft agl81 ft agl min to max 254 ft agl 254 81 ft agl
Info Average pitch angle -0.2 °-0.8 ° min to max 1.1 ° 1.1 -0.2 °
00.250.50.751050100150200250Distance to Touchdown NMApproach Height ft00.250.50.751-20-15-10-505101520Distance to Touchdown NMApproach Runway Alignment m
Arrival Landing 32.40Landing on runway 35 at 8AK6 Little Susitna Airport, runway length 805 m. Threshold height at 81 ft agl was significantly above target. Threshold speed was excessively high at 100 kt.
ScoreDescriptionStartProfileEnd
0 % Threshold speed was excessively high at 100 kt. Target 65 kt
30 % Target 44 ft agl
0 % Landing and flare profile
100 % Heading variation -0.0 °-0.2 ° min to max 0.2 ° -0.2 0.2 °
100 % Average bank angle 1.1 °0.2 ° min to max 1.8 ° 1.8 1.2 °
100 % Average g force 1.02 g0.95 g min to max 1.11 g 1.03 0.95 g
Info Average speed 98 kt96 kt min to max 100 kt 100 96 kt
Info Average VSI -825 fpm-935 fpm min to max -682 fpm -934 -691 fpm
Info Average altitude 41 ft agl10 ft agl min to max 81 ft agl 81 10 ft agl
Info Average pitch angle 0.7 °-0.7 ° min to max 1.8 ° -0.2 0.5 °
07515022530037545001631476278Runway Distance mLanding Height ft075150225300375450-24-20-16-12-8-404812162024Runway Distance mRunway Width m
Arrival Touchdown 66.73Touchdown point was very long using more than 50% of available runway. Touchdown speed at 96 kt was excessively fast. Touchdown rate was heavy at -691 fpm. Runway touchdown position was misaligned by 8.1 m from centreline. Local weather - Temperature 15 °C. Wind 2 kt at 270 °. Crosswind: 2 kt Headwind: 0 kt.
ScoreDescriptionStartProfileEnd
80 % Touchdown VSI was -691 fpm.
100 % Touchdown distance was 272 mTarget 421 m
27 % Speed at touchdown 96 ktTarget below 68 kt
81 % Runway alignment max 8.14 m5.70 m left 1.70 7.62 m
81 % Average bank angle 1.8 °0.0 ° min to max 3.7 ° 1.2 3.0 °
84 % Average g force 1.02 g0.58 g min to max 2.07 g 0.95 1.26 g
40 % Landing Bounce
Info Average speed 87 kt79 kt min to max 96 kt 96 79 kt
Info Average pitch angle 3.9 °-0.8 ° min to max 10.5 ° 0.5 4.6 °

Takeoff

71.08 %
100.00Takeoff roll108 m · 8 %
76.87Liftoff speed59 kt · target 75
78.53Runway alignment7.92 m R
0.00Bounce on takeoffYes
98.33Rate of climb458 ft/m
Takeoff weight3,063 kg
Airfield elevation69 ft asl
Wind270° · 2 kn · 0 kn cross

Approach

89.16 %
Not assessed1,000 ft gateNot recorded
Not assessed500 ft gateNot recorded
29.60Threshold height80 ft
0.00Threshold speed99 kt
100.00Centreline offset0.05 m L

Touchdown

66.73 %
100.00Touchdown point275 m
81.46Centreline at touchdown7.62 m L
79.62Sink rate-691 ft/m
83.71Touchdown force2.07 G
FailBounces1
Landing weight3,063 kg
Airfield elevation69 ft asl
Wind270° · 2 kn · 1 kn cross

The stabilisation gates

Two stabilised approach gates, each with six checks at 1,000 ft and 500 ft above the runway.

Six checks, two gates1,000 ft500 ft
Gear down
Landing flap
Sink rate
On glideslope
On centreline
On speed

The approach, gate by gate

Gate Height Centreline Speed
THR 82 ft 2.50 m R +35 kt

Touchdown on 8AK6 35

Past threshold
275 m
Off centreline
7.62 mL
Sink rate
-691 ft/m
Impact
2.07G

Side view — the last 805 m of the approach.

80 ft over the threshold · target 50 ft 80 ft400 Ideal — 50 ft, down at 305 m This flight — 80 ft, down at 275 m

Plan view — the full 805 m runway, to the same scale as the side view.

500 THRESHOLD FULL SCORE TO 503 M 275 m past threshold CLEARED

The 275 m touchdown sits inside the full-score zone. The arrival was smooth.

Runway used 275 m of 805 m · 34 %

The rest of the report

Explore in detail

Flight narrative

The flight began with a departure roll from runway 43W at the Lake Hood Seaplane Base, where the Grumman Goose aircraft took off with a takeoff distance of 108 meters, which was 8% of the runway. The liftoff speed was 60 knots. At the time of departure, the local weather conditions were characterized by a temperature of 15 degrees Celsius and a wind speed of 2 knots from a direction of 270 degrees, resulting in a negligible crosswind and a headwind of 2 knots.

As the aircraft climbed, it started its enroute climb overhead Lake Hood Anchorage, ascending from an altitude of 488 feet above sea level to 1,799 feet above sea level, an increase of 1,311 feet in just 2 minutes, while covering a distance of 4 nautical miles. The climb was followed by a descent from 1,810 feet above sea level to 1,249 feet above sea level, a decrease of 561 feet in 2 minutes, covering a distance of 3 nautical miles, which started overhead the Sleepers Strip Airport at Point Mackenzie.

The aircraft then entered a level cruise, starting 2 miles southeast of the Falcon Lake Strip at Point Mackenzie, and lasted for 9 minutes, covering a distance of 8 nautical miles. The cruise was followed by another climb, this time from 365 feet above sea level to 336 feet above sea level, an increase of 30 feet in 2 minutes, covering a distance of less than 1 nautical mile, which started overhead the Little Susitna Airport at Susitna Station.

The final approach to runway 35 at the Little Susitna Airport was made from the south, heading 0.0 degrees at 0 nautical miles and 254 feet above ground level. However, the landing was not without issues. The threshold height at 81 feet above ground level was significantly above the target, and the threshold speed was excessively high at 100 knots. The touchdown point was very long, using more than 50% of the available runway, and the touchdown speed at 96 knots was excessively fast. The touchdown rate was heavy at -691 feet per minute, and the runway touchdown position was misaligned by 8.1 meters from the centerline.

The local weather conditions at the time of landing were the same as at the time of departure, with a temperature of 15 degrees Celsius and a wind speed of 2 knots from a direction of 270 degrees, resulting in a negligible crosswind and a headwind of 0 knots. The total flight distance was 17 nautical miles, taking 16 minutes, and the aircraft used 34 kilograms 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 43W at PALH Lake Hood Seaplane Base in the Grumman Goose
86.42 %
71.08 %
Takeoff Roll
Departure roll runway 43W at PALH Lake Hood Seaplane Base. Takeoff distance 108 m 8 % of runway. Liftoff speed was 60 kt. Local weather - Temperature 15 °C. Wind 2 kt at 270 °. Crosswind: 0 kt Headwind: 2 kt.
Takeoff Distance
100 %
Roll distance of 108 m using 7.84 % of runway
Liftoff Speed
76.87 %
Liftoff speed was 60 kn - Target 75 kn
Alignment
78.53 %
0.00 m left to 8.94 m right
Bounce
0 %
Bounce Detected
Strobe Lights
100 %
Switched On
Landing Lights
100 %
Switched On
G
100 %
1.5 1 0.5
IAS kt
Info
60 50 40
Bank °
Info
1 0.5 0
Pitch °
Info
4 2 0
02505007501,0001,250-30-25-20-15-10-5051015202530 Runway Distance m Runway Alignment to End of Runway m
98.33 %
Climb 1
Departure climb to 50 ft agl from runway 43W PALH Lake Hood Seaplane Base.
Alignment
93.33 %
2 0 -2
IAS kt
100 %
100 75 50
Bank °
100 %
2 1 0
G
100 %
1.5 1 0.5
Pitch °
Info
12 7 2
Climb Rate fpm
Info
600 250 -100
89.84 %
Climb 2
Departure climb to 400 ft agl from 43W PALH Lake Hood Seaplane Base.
Alignment
100 %
2 0 -2
IAS kt
100 %
110 100 90
Bank °
59.37 %
18 9 0
G
100 %
1.5 1 0.5
Pitch °
Info
14 8.5 3
Climb Rate fpm
Info
1,600 750 -100
02505007501,0001,250052104156208260 Runway Distance m Height at End of Runway ft
00.050.10.150.20.250100200300 Climb Distance NM Climb Profile to 1,000 ft
00.050.10.150.20.25-60-48-36-24-1201224364860 Climb Distance NM Runway Alignment (in m) to 1,000 ft
Landing report
Landing on runway 35 at 8AK6 Little Susitna Airport in the Grumman Goose
Landing Score 62.76 %
Landing Summary

The Grumman Goose aircraft has successfully landed at 8AK6 Little Susitna Airport, but the landing was not without its issues. The final approach to runway 35 was initiated from the south, with the aircraft flying at a height of 254 feet above ground level (agl) and a distance of 0 nautical miles from the runway. However, the threshold height at 81 feet agl was significantly above the target, indicating that the aircraft was not properly aligned with the runway.

Upon landing, the Grumman Goose experienced several problems. The threshold speed was excessively high at 100 knots, which is above the recommended landing speed for the aircraft. This could have put additional stress on the aircraft's landing gear and potentially led to a bumpy ride for the passengers. The touchdown point was also very long, using more than 50% of the available runway, which could have left the aircraft with limited room to stop in case of an emergency.

The touchdown speed of 96 knots was also excessively fast, which could have increased the risk of a runway excursion or other accidents. Furthermore, the touchdown rate was heavy at -691 feet per minute, which is above the recommended rate for a safe landing. This could have put additional stress on the aircraft's landing gear and potentially led to a bumpy ride for the passengers.

In addition to these issues, the runway touchdown position was misaligned by 8.1 meters from the centerline, which could have made it difficult for the pilots to control the aircraft during the landing. The local weather conditions were relatively calm, with a temperature of 15 degrees Celsius and a wind speed of 2 knots from 270 degrees. However, the crosswind was 2 knots, which could have made the landing more challenging for the pilots.

Overall, while the Grumman Goose was able to land safely at 8AK6 Little Susitna Airport, the landing was not without its issues. The pilots will need to review the flight data and take steps to improve their landing technique in order to achieve a higher score.

89.16 %
Final 1
Approaching runway 35 at 8AK6 Little Susitna Airport from 1 nm to 0 nm. Descent from 254 ft agl to 81 ft agl. A decrease of 173 ft in 11 seconds.
Glideslope
54.26 %
Poor descent path above glideslope limit
Heading
100 %
Excellent heading alignment
Glideslope °
54.26 %
4 3 2
IAS kt
100 %
101 95 90
Alignment
100 %
0.5 0 -0.5
Bank °
91.54 %
7 3.5 0
G
100 %
1.5 1 0.5
Descent Rate fpm
Info
-650 -825 -1,000
00.250.50.751050100150200250 Distance to Touchdown NM Approach Height ft
00.250.50.751-20-15-10-505101520 Distance to Touchdown NM Approach Runway Alignment m
32.4 %
Landing
Landing on runway 35 at 8AK6 Little Susitna Airport, runway length 805 m. Threshold height at 81 ft agl was significantly above target. Threshold speed was excessively high at 100 kt.
Height
29.6 %
Threshold height at 81 ft agl was significantly above target. Target 50 ft agl
Speed
0 %
Threshold speed was excessively high at 100 kt. Target 65 kt
Flare
0 %
Very poor landing flare
Centreline ft
100 %
100 0 -100
Bank °
100 %
2 1 0
G
100 %
1.5 1 0.5
IAS kt
Info
100 95 90
Pitch °
Info
2 1 0
Descent Rate fpm
Info
-682 -841 -1,000
07515022530037545001631476278 Runway Distance m Landing Height ft
075150225300375450-24-20-16-12-8-404812162024 Runway Distance m Runway Width m
66.73 %
Touchdown
Touchdown point was very long using more than 50% of available runway. Touchdown speed at 96 kt was excessively fast. Touchdown rate was heavy at -691 fpm. Runway touchdown position was misaligned by 8.1 m from centreline. Local weather - Temperature 15 °C. Wind 2 kt at 270 °. Crosswind: 2 kt Headwind: 0 kt.
Touchdown
79.62 %
Touchdown rate was heavy at -691 ft/m.
Speed
26.86 %
Touchdown speed at 96 kt was excessively fast. Target below 68 kn
Distance
100 %
Touchdown point was very long using more than 50% of available runway.
Alignment
81.46 %
Runway touchdown position was misaligned by 8.1 m from centreline.
Bank
81.03 %
Bank angle 1.8 °
G
83.71 %
G 1.02 g
Bounce
40 %
Bounce Detected
Metrics
Metrics

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