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sci.glide-ratio-best-angle Calculator
Calculates aircraft glide ratio L/D from lift and drag coefficients, and best glide speed and angle of descent. Modern sailplane L/D ≈ 50:1 — from 3,000 m altitude, it can glide 150 km; commercial aircraft at L/D ≈ 17 glides 170 km from cruise altitude with engines off.
Inputs
L D
Reference formula or conversion factor shown for context.
Altitude M
Reference formula or conversion factor shown for context.
Headwind M S
Reference formula or conversion factor shown for context.
Results
glide ratio (L/D)
The proportional relationship between two quantities.