Sailplane Speeds and Weights

This chart was originally created by Jim Gobel. It was last updated 4/2021

Caesar Creek Soaring Club Glider ‘Cheat Sheet’
Ship G102 2-33 G103 ASK-21
Empty Weight 573 608 838 792
Gross Weight 838 1040 1279 1320
Useful Load 265 432 441 485
Min Weight Ballast 154 111 121 122
Min Wt No Ballast 154 154 154
Max Pilot Weight 243 325 242 242
Wing Span (ft/in) 49’2” 51 57.4 55.7
Glide Ratio 37:1 22:1 36:1 31:1
Rope Strength is 80% to 200% of Gross Weight of Sailplane
Penetrating Wind = Best L/D + 50% Wind

 

Caesar Creek Soaring Club Sailplane Speeds
Ship G102 2-33 G103 ASK-21
Best L/D Solo 49 kts 45 mph 53 kts 51 kts
Best L/D Dual 50 mph 57 kts 51 kts
Min Sink Solo 41 kts 38 mph 43 kts 43 kts
Min Sink Dual 42 mph 46 kts 45 kts
VSO Solo 38 kts 31 mph 36 kts 35 kts
VSO Dual 33 mph 41 kts 40 kts
VNE 135 kts 98 mph 135 kts 151 kts
VM 92 kts 98 mph 92 kts 97 kts
VT 92 kts 65 mph 92 kts 97 kts
Pattern Speed = 150% Stall + 50% of Wind