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MY FS FLIGHTS
Flight Score
Maintain the centreline
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-OffsStart to finish · 21 stages, 20 scored
Events
Events
Events
Events
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Events
Two stabilised approach gates, each with six checks at 1,000 ft and 500 ft above the runway. They are the approach's score: the checks passed out of the checks that ran.
The approach, gate by gate
Side view — the last 1,524 m of the approach.
Plan view — the first 1,524 m of the 2,743 m runway, to the same scale as the side view.
The 366 m touchdown sits inside the full-score zone. The arrival was smooth.
The rest of the report
The OV-10 Bronco taxied from the parking area to runway 21 at KGCN Grand Canyon National Park Airport in 4 minutes, covering approximately 1 nm.
During the departure roll on runway 21, the aircraft used 622 m of runway, representing 23 % of the available length, and lifted off at 93 kt; ambient temperature was 16 °C with a wind of 2 kt from 270°, a 2 kt cross-wind component and a 1 kt head-wind component.
The initial climb began overhead KGCN, climbing from 7,149 ft asl to 7,940 ft asl, an increase of 790 ft in less than 1 minute while covering 1 nm.
A level cruise segment started 1 mile west of KGCN, lasted 2 minutes and spanned 6 nm.
The first descent commenced 3 miles west of Grand Canyon Village, descending from 7,511 ft asl to 3,699 ft asl, a loss of 3,812 ft in 2 minutes over 4 nm.
A subsequent cruise phase originated 3 miles northwest of Grand Canyon Village, persisted for 2 minutes and covered 4 nm.
The next climb started 2 miles northeast of Grand Canyon, climbing from 3,333 ft asl to 8,431 ft asl, an increase of 5,098 ft in 5 minutes while traveling 13 nm.
A following descent began 9 miles southeast of KGRM Devil’s Track Airport, descending from 8,258 ft asl to 3,593 ft asl, a decrease of 4,664 ft in 2 minutes across 6 nm.
A cruise segment then started 13 miles southeast of KGRM, lasted 3 minutes and covered 12 nm.
The next climb originated 16 miles east of Grand Canyon, climbing from 3,124 ft asl to 8,837 ft asl, an increase of 5,712 ft in 5 minutes over 18 nm.
A further cruise began 3 miles east of Grand Canyon, lasted 2 minutes and spanned 5 nm.
The third descent started 1 mile southeast of Grand Canyon Village, descending from 8,480 ft asl to 7,040 ft asl, a loss of 1,440 ft in 2 minutes while covering 4 nm.
Final approach to runway 21 at KGCN was executed from the north-east on a heading of 222.0°, entering the approach at 1 nm and 497 ft agl; the aircraft then descended from 717 ft agl to 161 ft agl in 48 seconds and met the stabilisation gate criteria.
Landing on runway 21, whose total length is 2,743 m, the aircraft touched down 366 m from the threshold at 83 kt with a vertical speed of minus 228 fpm; the touchdown point was 4.9 m off centreline, the threshold height of 62 ft agl was above target and the threshold speed of 84 kt was slightly below target. Local weather at landing was 15 °C with a wind of 2 kt from 270°, a 2 kt cross-wind and a 1 kt head-wind component.
Runway rollout alignment was reported as very good, and the total landing distance recorded was 602 m, representing 22 % of the runway.
The aircraft taxied from the runway to the parking area in 1 minute, covering less than 1 nm.
In total, the flight covered 78 nm, lasted 27 minutes, and consumed 137 kg of fuel.
The final approach to runway 21 at KGCN Grand Canyon National Park Airport was flown from the north-east on a heading of 222.0° at 1 nm and 497 ft agl. The aircraft descended from 717 ft agl to 161 ft agl in 48 seconds and met the stabilisation-gate criteria.
At threshold the aircraft was 62 ft agl, which was above target, and the threshold speed was slightly below target at 84 kt.
Touchdown occurred 366 m down the runway at a speed of 83 kt, with a vertical rate of -228 fpm rated fair. The touchdown point was 4.9 m off the centreline, and the total landing distance was 602 m, representing 22 % of the 2,743 m runway.
Rollout alignment was very good, keeping the aircraft centred for the remainder of the ground run.
Refine the flare to achieve a more neutral vertical rate and reduce the -228 fpm descent, which will smooth the touchdown. Adjust flare timing to keep the touchdown point within a tighter centreline tolerance, targeting alignment within a couple of metres of the runway centreline.
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