1000 km NW/SE zig zag distance
Courses are 3 legs aligned NW/SE. Not enough room to go S first
#1. Better, since a shorter last leg. NW, SE, NW
Turnpoint Latitude Longitude Distance TC MC
St: Chicago Glider Club 41 25 55 N 88 14 50 W
1: Platteville PVB 42 41 22 N 90 26 40 W 229.0 km 308 308
2: Vermilion County DNV 40 11 57 N 87 35 45 W 364.7 138 138
3: Albertus FEP 42 14 46 N 89 34 55 W 281.8 324 324
Fn: Chicago Glider Club 41 25 55 N 88 14 50 W 142.9 128 128
Total: 1018.4 km
FAI 1000 km maximum loss of height 1183 m, 3884 ft.
#2 A little bit shorter, but a longer 3d leg.
Turnpoint Latitude Longitude Distance TC MC
St: Chicago Glider Club 41 25 55 N 88 14 50 W
1: Platteville 42 41 22 N 90 26 40 W 229.0 km 308 308
2: Rantoul 40 17 37 N 88 08 33 W 328.2 143 143
3: Monroe 42 36 54 N 89 35 25 W 284.9 335 335
Fn: Chicago Glider Club 41 25 55 N 88 14 50 W 172.1 139 139
Total: 1014.2 km
FAI 1000 km maximum loss of height 1142 m, 3747 ft.
750 K NW/SE zig zag distance
Ideal: start downwind, FG from Kankakee should be easy on a 750 day. (Stay high at that last turnpoint!) Do sectors or you’ll lose the 1.3 km margin.
Turnpoint Latitude Longitude Distance TC MC
St: Chicago Glider Club 41 25 55 N 88 14 50 W
1: Kentland 40 45 31 N 87 25 42 W 101.6 km 137 136
2: Platteville 42 41 22 N 90 26 40 W 329.7 311 311
3: Kankakee 41 06 00 N 87 55 00 W 273.9 129 129
Fn: Chicago Glider Club 41 25 55 N 88 14 50 W 46.1 323 322
Total: 751.3 km
Northwest first – good for a late start if you don’t want to FG from south, and if you’re nervous about going to Platteville.
Turnpoint Latitude Longitude Distance TC MC
St: Chicago Glider Club 41 25 55 N 88 14 50 W
1: Monroe EFT 42 36 54 N 89 35 25 W 172.1 km 320 320
2: Kentland 50I 40 45 31 N 87 25 42 W 273.5 138 137
3: Dixon C73 41 50 01 N 89 26 46 W 206.6 306 305
Fn: Chicago Glider Club 41 25 55 N 88 14 50 W 109.2 113 113
Total: 761.5 km
South first with a long first leg. Good for an early start, but FG from Pontiac
Turnpoint Latitude Longitude Distance TC MC
St: Chicago Glider Club 41 25 55 N 88 14 50 W
1: Vermilion County DNV 40 11 57 N 87 35 45 W 147.6 km 157 157
2: Foster 7A4 42 27 59 N 90 10 10 W 331.2 320 320
3: Pontiac PNT 40 55 28 N 88 37 26 W 214.2 142 142
Fn: Chicago Glider Club 41 25 55 N 88 14 50 W 64.6 029 028
Total: 757.6 km
500K distance
Only two turnpoints – start downwind, finish downwind.
Turnpoint Latitude Longitude Distance TC MC
St: Chicago Glider Club 41 25 55 N 88 14 50 W
1: Kentland 40 45 31 N 87 25 42 W 101.6 km 137 136
2: Freeport/Dornink 42 22 40 N 89 33 50 W 252.9 316 315
Fn: Chicago Glider Club 41 25 55 N 88 14 50 W 151.4 133 133
Total: 505.9 km
Starts upwind, but stays closer
Turnpoint Latitude Longitude Distance TC MC
St: Chicago Glider Club 41 25 55 N 88 14 50 W
1: Albertus 42 14 46 N 89 34 55 W 142.9 km 309 309
2: Pontiac 40 55 28 N 88 37 26 W 167.2 151 150
3: Rochelle 41 53 35 N 89 04 42 W 114.2 340 340
Fn: Chicago Glider Club 41 25 55 N 88 14 50 W 86.0 126 126
Total: 510.2 km
FAI 500 km maximum loss of height 1102 m, 3617 ft.
O&R for a NW streeting day
Check that two turnpoints counts for OR speed.
500 km O&R
Turnpoint Latitude Longitude Distance TC MC
St: Kankakee 41 6.00 N 87 55.00 W
1: Platteville 42 41.36 N 90 26.66 W 273.8 km 311 310
Fn: Kankakee 41 6.00 N 87 55.00 W 273.8 129 129
Total: 547.7 km
FAI Triangles
750 and above: no leg shorter than 25%, no leg longer than 45%
Others: No leg shorter than 28%
750 km triangle
Turnpoint Latitude Longitude Distance TC MC
St: Chicago Glider Club 41 25 55 N 88 14 50 W
1: Kentland 50I 40 45 31 N 87 25 41 W 101.6 km 137 136
2: Tri-County 2C6 40 46 26 N 90 04 27 W 222.8 271 270
3: Platteville PVB 42 41 21 N 90 26 39 W 215.2 351 351
Fn: Chicago Glider Club 41 25 55 N 88 14 50 W 229.0 126 126
Total: 768.6 km
Note: Avoid class C near tri county
Triangle credited distance
Turnpoint Latitude Longitude Distance TC MC
St: Kentland 40 45 31 N 87 25 41 W
1: Tri-County 40 46 26 N 90 04 27 W 222.8 km 271 270
2: Platteville 42 41 21 N 90 26 39 W 215.2 351 351 28.03%
Fn: Kentland 40 45 31 N 87 25 41 W 329.7 129 129 42.94%
Total: 767.8 km
500 km triangle
Turnpoint Latitude Longitude Distance TC MC
St: Lowell C97 41 13 49 N 87 30 28 W
1: Marshall County C75 41 01 09 N 89 23 11 W 159.1 km 262 261
2: Freeport/Dornink C86 42 22 40 N 89 33 50 W 151.8 354 354
Fn: Lowell 41 13 49 N 87 30 28 W 212.9 126 125
Total: 523.8 km
FAI 500 km maximum loss of height 1237 m, 4060 ft.
300km triangles
Turnpoint Latitude Longitude Distance TC MC
St: Kankakee 41 06 00 N 87 55 00 W
1: Hartenbower Hectares 41 10 46 N 89 08 52 W 103.5 km 275 275
2: De Kalb Taylor 41 55 54 N 88 42 29 W 91.3 023 023
Fn: Kankakee 41 06 00 N 87 55 00 W 113.6 144 143
Total: 308.4 km