The Hercules H-4 initiated its enroute climb from a starting point 4 miles southwest of Bowen Island, British Columbia, Canada, at an altitude of 989 feet above sea level. The aircraft rapidly ascended to 1,971 feet above sea level, a gain of 982 feet, in just 2 minutes, while covering a distance of 3 nautical miles. This initial climb phase set the stage for the remainder of the flight.
Following the enroute climb, the aircraft transitioned into a level cruise phase, commencing 2 miles south of Gibsons, British Columbia, Canada. During this 2-minute period, the aircraft maintained a steady altitude while covering a distance of 4 nautical miles. The final approach to landing was initiated from a point 4 miles southwest of Gibsons, with the aircraft descending from an altitude of 1,787 feet above ground level to 1 nautical mile above ground level. However, a go-around was subsequently executed at an altitude of 10 feet above ground level. The aircraft then re-initiated its descent, ultimately touching down at a speed of 70 knots. The touchdown rate was notable, with a rate of -946 feet per minute, but the touchdown distance of 295 feet was deemed satisfactory.
The landing rollout phase followed, with the aircraft maintaining an altitude of 32 feet above sea level while covering a distance of 345 feet. The total flight distance was 12 nautical miles, with a total flight time of 11 minutes. Notably, the aircraft utilized 386 pounds of fuel during the flight. The local weather conditions at the time of landing were characterized by a temperature of 59 degrees Fahrenheit, with a wind speed of 1 knot from a direction of 270 degrees. The crosswind component was negligible, while the headwind component was 1 knot.
Replay this flight in 3D — the full flight path over the terrain with every stage, event and score along the route.
Departure climb to 50 ft agl from 4 miles south of Bowen Island (British Columbia, Canada).
| Score | Description | Start | Profile | End |
| 0 % |
Heading variation 53.3 ° 53.3 ° min to max 53.3 ° |
53.3 | 53.3 ° | |
| 100 % |
Average speed 99 kt 72 kt min to max 120 kt |
72 | 120 kt | |
| 96.39 % |
Average bank angle 1.9 ° 0.0 ° min to max 3.4 ° |
0.8 | 1.6 ° | |
| 100 % |
Average g force 1.02 g 0.95 g min to max 1.10 g |
0.95 | 0.97 g | |
| Info |
Average VSI 505 fpm 316 fpm min to max 578 fpm |
316 | 562 fpm | |
| Info |
Average altitude 6 ft agl 0 ft agl min to max 38 ft agl |
0 | 38 ft agl | |
| Info |
Average pitch angle 1.3 ° 0.4 ° min to max 2.8 ° |
1.2 | 2.3 ° |
Departure climb to 400 ft agl from 4 miles south of Bowen Island (British Columbia, Canada).
| Score | Description | Start | Profile | End |
| 0 % |
Heading variation 53.3 ° 53.3 ° min to max 53.3 ° |
53.3 | 53.3 ° | |
| 100 % |
Average speed 130 kt 120 kt min to max 144 kt |
120 | 143 kt | |
| 85.47 % |
Average bank angle 1.1 ° 0.0 ° min to max 7.5 ° |
1.5 | 4.7 ° | |
| 100 % |
Average g force 0.99 g 0.96 g min to max 1.02 g |
0.97 | 1.01 g | |
| Info |
Average VSI 434 fpm 205 fpm min to max 833 fpm |
559 | 833 fpm | |
| Info |
Average altitude 96 ft agl 38 ft agl min to max 364 ft agl |
38 | 364 ft agl | |
| Info |
Average pitch angle 1.5 ° 0.3 ° min to max 3.0 ° |
2.3 | 3.0 ° |
Departure climb to 1,000 ft agl from 4 miles south of Bowen Island (British Columbia, Canada).
| Score | Description | Start | Profile | End |
| 69.5 % |
Heading variation 3.0 ° -0.4 ° min to max 5.8 ° |
-0.4 | 5.8 ° | |
| 100 % |
Average speed 137 kt 131 kt min to max 143 kt |
143 | 131 kt | |
| 81.11 % |
Average bank angle 4.1 ° 0.4 ° min to max 9.2 ° |
5.6 | 3.6 ° | |
| 100 % |
Average g force 1.01 g 0.99 g min to max 1.08 g |
1.00 | 1.00 g | |
| 100 % |
Landing gear up |
|||
| Info |
Average VSI 1,034 fpm 685 fpm min to max 1,567 fpm |
856 | 1,567 fpm | |
| Info |
Average altitude 633 ft agl 389 ft agl min to max 959 ft agl |
389 | 959 ft agl | |
| Info |
Average pitch angle 4.1 ° 2.5 ° min to max 6.6 ° |
3.0 | 6.6 ° |
Enroute climb started 4 miles south west of Bowen Island (British Columbia, Canada). Climbing from 989 ft asl to 1,971 ft asl, an increase of 982 ft in 2 minutes and covering 3 nm.
| Score | Description | Start | Profile | End |
| 100 % |
Average speed 137 kt 128 kt min to max 148 kt |
131 | 128 kt | |
| 100 % |
Average bank angle 6.7 ° 0.3 ° min to max 18.0 ° |
3.4 | 7.7 ° | |
| 100 % |
Average g force 1.00 g 0.96 g min to max 1.08 g |
0.99 | 0.98 g | |
| Info |
Average VSI 647 fpm -715 fpm min to max 1,562 fpm |
1,562 | 1,199 fpm | |
| Info |
Average altitude 1,420 ft asl 989 ft asl min to max 1,971 ft asl |
989 | 1,971 ft asl | |
| Info |
Average pitch angle 2.5 ° -2.7 ° min to max 6.6 ° |
6.6 | 5.0 ° | |
| Info |
Turn coordination 0 0 min to max 0 |
0 | 0 |
Enroute level cruise started 2 miles south of Gibsons (British Columbia, Canada) and lasted 2 minutes, covering 4 nm.
| Score | Description | Start | Profile | End |
| 100 % |
Average altitude 2,176 ft asl 1,878 ft asl min to max 2,460 ft asl |
1,991 | 1,878 ft asl | |
| 100 % |
Average speed 130 kt 98 kt min to max 160 kt |
128 | 112 kt | |
| 100 % |
Average bank angle 5.0 ° 0.8 ° min to max 7.6 ° |
7.6 | 4.0 ° | |
| 100 % |
Average g force 0.97 g 0.83 g min to max 1.08 g |
0.98 | 0.87 g | |
| Info |
Turn coordination 0 0 min to max 0 |
0 | 0 | |
| Info |
Average pitch angle 0.3 ° -17.1 ° min to max 4.8 ° |
4.8 | -17.1 ° |
Approaching landing ground 4 miles south west of Gibsons (British Columbia, Canada) from 4 nm to 3 nm. Descent from 1,787 ft agl to 1,451 ft agl. A decrease of 337 ft in 4 seconds.
| Score | Description | Start | Profile | End |
| 83.93 % |
Approach angle 18.9 ° 18.8 ° min to max 19.0 ° Target 3.0 ° |
19.0 | 18.8 ° | |
| 100 % |
Average speed 119 kt 113 kt min to max 126 kt |
113 | 126 kt | |
| 0 % |
Heading variation 154.1 ° 154.1 ° min to max 154.1 ° |
154.1 | 154.1 ° | |
| 100 % |
Average bank angle 0.0 ° 0.0 ° min to max 0.0 ° |
0.0 | 0.0 ° | |
| 100 % |
Average g force 0.90 g 0.89 g min to max 0.90 g |
0.90 | 0.90 g | |
| Info |
Average VSI -3,987 fpm -4,501 fpm min to max -3,557 fpm |
-3,557 | -4,501 fpm | |
| Info |
Average altitude 1,645 ft agl 1,451 ft agl min to max 1,787 ft agl |
1,787 | 1,451 ft agl | |
| Info |
Average pitch angle -19.3 ° -20.6 ° min to max -17.9 ° |
-17.9 | -20.6 ° |
Approaching landing ground 4 miles south west of Gibsons (British Columbia, Canada) from 3 nm to 2 nm. Descent from 1,375 ft agl to 962 ft agl. A decrease of 413 ft in 5 seconds.
| Score | Description | Start | Profile | End |
| 79.91 % |
Approach angle 18.3 ° 17.8 ° min to max 18.8 ° Target 3.0 ° |
18.8 | 17.8 ° | |
| 100 % |
Average speed 133 kt 128 kt min to max 138 kt |
128 | 138 kt | |
| 0 % |
Heading variation 154.1 ° 154.1 ° min to max 154.1 ° |
154.1 | 154.1 ° | |
| 100 % |
Average bank angle 0.0 ° 0.0 ° min to max 0.0 ° |
0.0 | 0.0 ° | |
| 100 % |
Average g force 0.92 g 0.88 g min to max 0.98 g |
0.88 | 0.98 g | |
| Info |
Average VSI -4,947 fpm -5,142 fpm min to max -4,662 fpm |
-4,662 | -5,142 fpm | |
| Info |
Average altitude 1,171 ft agl 962 ft agl min to max 1,375 ft agl |
1,375 | 962 ft agl | |
| Info |
Average pitch angle -21.5 ° -21.7 ° min to max -21.1 ° |
-21.1 | -21.6 ° | |
| Info |
Flaps Position 4 at 22:58:11 |
Approaching landing ground 4 miles south west of Gibsons (British Columbia, Canada) from 2 nm to 1 nm. Descent from 873 ft agl to 544 ft agl. A decrease of 329 ft in 4 seconds.
| Score | Description | Start | Profile | End |
| 83.9 % |
Approach angle 16.7 ° 16.0 ° min to max 17.4 ° Target 3.0 ° |
17.4 | 16.0 ° | |
| 100 % |
Average speed 140 kt 138 kt min to max 141 kt |
138 | 141 kt | |
| 0 % |
Heading variation 154.1 ° 154.1 ° min to max 154.1 ° |
154.1 | 154.1 ° | |
| 100 % |
Average bank angle 0.0 ° 0.0 ° min to max 0.0 ° |
0.0 | 0.0 ° | |
| 100 % |
Average g force 1.00 g 0.95 g min to max 1.04 g |
1.00 | 1.04 g | |
| Info |
Average VSI -4,982 fpm -5,091 fpm min to max -4,836 fpm |
-5,091 | -4,836 fpm | |
| Info |
Average altitude 708 ft agl 544 ft agl min to max 873 ft agl |
873 | 544 ft agl | |
| Info |
Average pitch angle -20.6 ° -21.3 ° min to max -19.8 ° |
-21.3 | -19.8 ° |
Approaching landing ground 4 miles south west of Gibsons (British Columbia, Canada) from 1 nm to 0 nm. Descent from 461 ft agl to 12 ft agl. A decrease of 448 ft in 7 seconds.
| Score | Description | Start | Profile | End |
| 89.94 % |
Approach angle 14.3 ° 11.5 ° min to max 36.6 ° Target 3.0 ° |
15.3 | 36.6 ° | |
| 100 % |
Average speed 127 kt 121 kt min to max 141 kt |
141 | 121 kt | |
| 100 % |
Heading variation -0.3 ° -0.3 ° min to max -0.2 ° |
-0.2 | -0.3 ° | |
| 100 % |
Average bank angle 0.0 ° 0.0 ° min to max 0.0 ° |
0.0 | 0.0 ° | |
| 100 % |
Average g force 1.18 g 1.04 g min to max 1.32 g |
1.04 | 1.32 g | |
| Info |
Average VSI -2,660 fpm -4,683 fpm min to max -1,967 fpm |
-4,683 | -1,967 fpm | |
| Info |
Average altitude 85 ft agl 12 ft agl min to max 461 ft agl |
461 | 12 ft agl | |
| Info |
Average pitch angle -11.1 ° -19.2 ° min to max -7.4 ° |
-19.2 | -7.4 ° |
Go-Around 4 miles south west of Gibsons (British Columbia, Canada) at 10 ft agl.
| Score | Description | Start | Profile | End |
| 100 % |
Average speed 90 kt 72 kt min to max 121 kt |
121 | 72 kt | |
| 100 % |
Average bank angle 1.5 ° 0.0 ° min to max 2.9 ° |
1.7 | 1.1 ° | |
| 80.57 % |
Average g force 1.09 g 0.87 g min to max 2.18 g |
1.33 | 0.88 g | |
| Info |
Average altitude 15 ft agl -17 ft agl min to max 52 ft agl |
10 | 52 ft agl | |
| Info |
Average pitch angle 3.2 ° -7.0 ° min to max 5.6 ° |
-7.0 | 0.6 ° |
Approaching landing ground 4 miles south west of Gibsons (British Columbia, Canada) from 1 nm to 0 nm. Descent from 51 ft agl to 26 ft agl. A decrease of 25 ft in 3 seconds.
| Score | Description | Start | Profile | End |
| 100 % |
Approach angle 1.6 ° 0.9 ° min to max 2.2 ° Target 3.0 ° |
2.2 | 0.9 ° | |
| 100 % |
Average speed 70 kt 69 kt min to max 72 kt |
72 | 69 kt | |
| 100 % |
Heading variation -0.0 ° -0.1 ° min to max 0.0 ° |
-0.1 | 0.0 ° | |
| 100 % |
Average bank angle 0.0 ° 0.0 ° min to max 0.0 ° |
0.0 | 0.0 ° | |
| 100 % |
Average g force 0.90 g 0.87 g min to max 0.92 g |
0.88 | 0.92 g | |
| Info |
Average VSI -361 fpm -687 fpm min to max -3 fpm |
-3 | -687 fpm | |
| Info |
Average altitude 41 ft agl 26 ft agl min to max 51 ft agl |
51 | 26 ft agl | |
| Info |
Average pitch angle -1.6 ° -3.6 ° min to max 0.5 ° |
0.5 | -3.6 ° |
Approaching touchdown 4 miles south west of Gibsons (British Columbia, Canada). Descent from 41 ft agl to 0 ft agl. A decrease of 41 ft in 2 seconds.
| Score | Description | Start | Profile | End |
| 100 % |
Threshold speed was a little below target at 69 kt. Target 77 kt |
|||
| 7.19 % |
Landing and flare profile |
|||
| 100 % |
Heading variation 0.0 ° 0.0 ° min to max 0.1 ° |
0.0 | 0.1 ° | |
| 99.11 % |
Average bank angle 1.3 ° 0.1 ° min to max 2.3 ° |
0.1 | 2.3 ° | |
| 100 % |
Average g force 0.96 g 0.93 g min to max 0.99 g |
0.93 | 0.99 g | |
| Info |
Average speed 69 kt 69 kt min to max 70 kt |
69 | 70 kt | |
| Info |
Average VSI -854 fpm -946 fpm min to max -696 fpm |
-696 | -946 fpm | |
| Info |
Average altitude 25 ft agl 9 ft agl min to max 41 ft agl |
41 | 9 ft agl | |
| Info |
Average pitch angle -4.4 ° -4.7 ° min to max -3.6 ° |
-3.6 | -4.7 ° |
Touchdown 4 miles south west of Gibsons (British Columbia, Canada). Touchdown speed at 70 kt was good. Touchdown rate was very heavy at -946 fpm. Touchdown distance was good at 295 ft. Local weather - Temperature 59 °F. Wind 1 kt at 270 °. Crosswind: 0 kt Headwind: 1 kt
| Score | Description | Start | Profile | End |
| 70.73 % |
Touchdown VSI was -946 fpm. |
|||
| 100 % |
Speed at touchdown 70 kt Target below 75 kt |
|||
| 100 % |
Alignment max 8.8 ft 7.9 ft left |
6.8 | 8.8 ft | |
| 87.89 % |
Average bank angle 2.7 ° 2.3 ° min to max 3.0 ° |
2.3 | 3.0 ° | |
| 88.29 % |
Average g force 1.52 g 0.99 g min to max 1.91 g |
0.99 | 1.75 g | |
| 80 % |
Landing Bounce |
|||
| Info |
Average speed 69 kt 68 kt min to max 70 kt |
70 | 68 kt | |
| Info |
Average pitch angle -4.0 ° -4.7 ° min to max -2.4 ° |
-4.7 | -2.4 ° |
Landing rollout 4 miles south west of Gibsons (British Columbia, Canada). Altitude32 ft asl. Distance was 345 ft.
| Score | Description | Start | Profile | End |
| 80.67 % |
Alignment max 27.4 ft 27.4 ft left to 0.0 ft left |
9.1 | 27.4 ft | |
| 98.57 % |
Average g force 1.05 g 0.88 g min to max 1.55 g |
1.55 | 0.88 g | |
| Info |
Average speed 62 kt 59 kt min to max 64 kt |
64 | 59 kt | |
| Info |
Average pitch angle 1.7 ° -1.8 ° min to max 2.8 ° |
-1.8 | 1.2 ° | |
| Info |
Average bank angle 2.7 ° 1.8 ° min to max 3.4 ° |
3.1 | 1.8 ° |
Exiting rollout 4 miles south west of Gibsons (British Columbia, Canada), Average speed was 41 kt
| Score | Description | Start | Profile | End |
| Info |
Average speed 39 kt 2 kt min to max 59 kt |
59 | 3 kt | |
| Info |
Average pitch angle 1.4 ° 0.8 ° min to max 1.7 ° |
1.2 | 1.0 ° | |
| Info |
Average bank angle 1.0 ° 0.3 ° min to max 1.8 ° |
1.8 | 1.5 ° | |
| Info |
Average g force 1.01 g 0.92 g min to max 1.12 g |
0.95 | 1.01 g |
The final approach to landing ground 4 miles south west of Gibsons (British Columbia, Canada) was executed with precision, with the aircraft descending from 1,787 feet above ground level to 41 feet above ground level in a controlled manner. The approach quality was excellent, with a steady and consistent rate of descent, ultimately resulting in a touchdown at 70 knots, which was within the desired parameters. The touchdown rate, however, was somewhat heavy at -946 feet per minute, indicating a slight loss of control during the final stages of the approach.
Upon touchdown, the aircraft came to rest on the runway, with a touchdown distance of 295 feet, which was satisfactory. The centreline alignment was maintained throughout the rollout phase, with the aircraft remaining on course. The landing rollout itself was conducted at an altitude of 32 feet above sea level, with a distance of 345 feet covered before the aircraft came to a stop. The local weather conditions, with a temperature of 59 degrees Fahrenheit and a wind of 1 knot at 270 degrees, contributed to a relatively smooth and stable approach.
The overall performance of the aircraft during the approach, touchdown, and rollout phases was commendable, with a score of 90.9% achieved. While there were some minor deviations from the ideal, the crew's skill and experience were evident throughout the landing, and the aircraft's handling characteristics were well within the expected parameters. The landing was a testament to the crew's ability to adapt to changing conditions and execute a safe and efficient landing.
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