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Hughbert Alexander

Corryong Cup 2021 · Task 3 (Open) (Tue, 12 Jan 2021) · open · ranked #12 · times in Australia/Melbourne (GMT+11)

Scores computed

Made goal in 2:12:00 — 482.4 points

The flight

What the tracklog shows, and which crossings scored.

Crossed the start cylinder boundary 5 times. The scored start is the latest crossing from which the flight still makes its best run along the course — re-starting supersedes an earlier start, while simply flying back through the cylinder later in the task changes nothing.
Start time taken: gate 1 of 5 — the last start gate at or before the crossing. The speed-section clock runs from the gate, not from the crossing (FAI S7F §8.3.1).14:00:00
Completed the task — full task distance is credited.

Day quality — points on offer

Task validity 94.94% of a perfect day, so 949.4 of 1000 points were available.

Launch validity — did enough registered pilots launch?100%
Distance validity — did the field fly far enough relative to the nominal distance?100%
Time validity — was the winning time long enough relative to the nominal time?94.94%
Points on offer for the day949.4 pts

1000 × 1.00 × 1.00 × 0.9494 = 949.4

Split between the components by the goal ratio

distance 453.9 · time 495.5

Distance points

453.9 pts
Scored distance57.7 km

Measured along the optimized task line, up to the furthest point on course.

Best distance in class57.7 km
Made goal — full available distance points.453.9 pts

Time points

28.4 pts
Time points use the 2⁄3 speed-fraction exponent (the older GAP2016/2018 curve, S7F §11.2).
Your speed section time2:12:00

Timed from your 14:00:00 start gate to the end of the speed section (FAI S7F §8.7) — you crossed the start at 14:07:56.

Fastest time in class (among pilots who made goal)1:11:53
Time points fall off with the gap to the fastest time28.4 pts

speed fraction = max(0, 1 − ((T − Tbest) ÷ √Tbest)^2⁄3) = 0.0574; × 495.5 available = 28.4 (times in hours)

Total

482.4 pts
Distance + time + leading + arrival, minus penalties482.4 pts

453.9 + 28.4 ≈ 482.4 — the points above are shown rounded to 0.1; the total is rounded from their exact sum.

Track data cleaning

50 of 8690 GPS fixes (0.6%) carried an implausible altitude and were repaired before analysis — flagged by vertical-speed limits (no barometric channel to cross-check). Positions and times are never altered. How data cleaning works

  • 15:43:39–15:43:40 · 2 fixes · up to 300 m off
  • 15:44:01–15:44:24 · 22 fixes · up to 407 m off
  • 15:47:53 · 1 fix · up to 392 m off
  • 15:49:45 · 1 fix · up to 668 m off
  • 15:50:28 · 1 fix · up to 657 m off
  • 15:51:16–15:51:24 · 4 fixes · up to 479 m off
  • 15:52:28 · 1 fix · up to 504 m off
  • 16:13:44–16:14:01 · 18 fixes · up to 206 m off