Skip to main content

James Atkinson

Corryong Cup 2021 · Task 5 (Open) (Sat, 16 Jan 2021) · open · ranked #15 · times in Australia/Melbourne (GMT+11)

Scores computed

Landed out at 9.6 km — 211.6 points

The flight

What the tracklog shows, and which crossings scored.

Crossed the start cylinder boundary 2 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 3 — 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).13:00:00

Day quality — points on offer

Task validity 78.365% of a perfect day, so 783.7 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?78.44%
Time validity — was the winning time long enough relative to the nominal time?99.904%
Points on offer for the day783.7 pts

1000 × 1.00 × 0.7844 × 0.99904 ≈ 783.7 — the validity factors are shown rounded to 5 decimal places; the points on offer come from their full precision.

Split between the components by the goal ratio

distance 449.2 · time 334.4

Distance points

211.6 pts
Scored distance9.6 km

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

Best distance in class50.1 km
Linear half — half the available points scale with your share of the best distance43.2 pts

0.5 × (9.62 km ÷ 50.05 km) × 449.2 = 43.2

Difficulty half — rewards flying past stretches where many pilots landed168.5 pts

The difficulty curve is built from where the whole field landed out (FAI S7F §11.1.1).

Time points

0 pts
Time points are only awarded to pilots who reach the end of the speed section.

Total

211.6 pts
Distance + time + leading + arrival, minus penalties211.6 pts

round(211.6 + 0.0, 1 dp) = 211.6

Track data cleaning

125 of 2011 GPS fixes (6.2%) 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

  • 13:32:14–13:32:18 · 5 fixes · up to 174 m off
  • 13:35:50–13:35:56 · 7 fixes · up to 404 m off
  • 13:36:01–13:36:24 · 24 fixes · up to 499 m off
  • 13:36:34–13:36:38 · 5 fixes · up to 326 m off
  • 13:36:47–13:36:55 · 9 fixes · up to 455 m off
  • 13:37:07–13:37:09 · 3 fixes · up to 268 m off
  • 13:44:04–13:44:09 · 6 fixes · up to 296 m off
  • 13:44:15–13:44:21 · 5 fixes · up to 306 m off
  • 13:44:25–13:44:27 · 3 fixes · up to 179 m off
  • 13:46:32–13:46:33 · 2 fixes · up to 685 m off
  • 13:46:38–13:46:50 · 13 fixes · up to 842 m off
  • 13:46:57–13:47:29 · 29 fixes · up to 791 m off
  • 13:47:36 · 1 fix · up to 169 m off
  • 13:48:13–13:48:15 · 3 fixes · up to 216 m off
  • 13:48:26 · 1 fix · up to 164 m off
  • 13:48:33–13:48:35 · 2 fixes · up to 310 m off
  • 13:48:39–13:48:40 · 2 fixes · up to 273 m off
  • 13:51:12–13:51:16 · 5 fixes · up to 363 m off