HISTORICAL DRAWING · 1906

Wing-warping aircraft

What airspeed gives enough idealized lift for an assumed mass?

O. & W. Wright, US 821,393 "Flying-Machine", sheet 1 (wing structure with wing-warping). View the original source and attribution ↗

IMAGE → REGISTERED MODEL

From drawing to physical assumptions

Use the historic drawing or upload a raster image / SVG. Adjust the registration manually. The blue lines illustrate a simplified wing-and-strut mechanical interpretation, not measured geometry.

Choose your own image or SVGHorizontal alignment 0Vertical alignment 0Scale (%) 100Rotation (°) 0Opacity (%) 75

Manual alignment · illustrative vector model · not automatic CAD reconstruction.

A contemporary sketch model

Every number below is a modern illustrative assumption. The historical drawing supplies a question; the source model is an exercise in reasoning about it.

rho = 1.225 kg/m^3 "Illustrative air density"
speed = 12 m/s in 8..18 ± 5% "Illustrative flight speed"
area = 30 m^2 "Assumed lifting area"
CL = 0.8 "Assumed lift coefficient"
mass = 300 kg "Assumed all-up mass"
weight := mass*9.81 m/s^2 [N]
lift := 0.5*rho*speed^2*area*CL [N]
check support: lift >= weight
sweep Speed: speed = 8, 12, 18 m/s

Model limits

Steady lift sizing only; no wing-warping control effectiveness, stall, stability, biplane interference or CFD.

Explore it with your agent

Create a Study, inspect the installed capabilities, and use this source as a starting point. Ask the agent to explain the equations and assumptions, then replace illustrative inputs with measured evidence for your own design.

This example includes a scalar sweep. Use napkin_sketch to add the model and napkin_run to inspect the sweep; the source editor’s scalar comparison view is for simple scenarios.

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