Section Study

Study inputs

Fictional model scenario. Changes stay in the draft until you apply them.

Fit, privacy and model limits

Free, ad-free beta candidate. No accounts, telemetry or remote solver. Study files, inputs and results are processed in this browser until an explicit download; reloading loses unsaved work. No local storage or study data in URLs. When hosted, the site provider receives ordinary page and asset request metadata; study content is not uploaded.

This is a two-dimensional section model, not an aircraft/3D/Navier–Stokes analysis or physical certification. Same-Cl Cd is a descriptive interpolation, with no physical error band or pre-stall guarantee.

AI-assisted software. Two numerical revisions, up to 16 attempts each, with explicit local Run. Generation supports standard NACA4 only; arbitrary DAT/editor interoperability is not claimed. Saved master limit: 2 MiB UTF8. Core MIT licence · Dependency notices

Prepare a study

No applied study

Apply the two candidates and requirements, then review the exact 16-point run.

No numerical calls yet.

Same-Cl coverage

Awaiting applied inputs

Approximate profile Cd at the same required section Cl and nominal Re. Both candidates remain provisional.

Nominal Re	Required Cl	A · predicted Cd	B · predicted Cd	A − B Cd	Interpretation

Saved point evidence

A / B · solid Re 100k · dashed Re 200k

Scroll the plot horizontally in a narrow window to inspect every axis and point at full size.

Cl against profile Cd. Lines join only adjacent valid points; gaps stay gaps. No smoothing or aircraft ranking.

Attempt diagnostics

Point identity	Status	Cl	Cd	Cm	Iterations	Residual	Diagnostic

Geometry and engine identities

Trusted source ec792da45224628845554a0998ed91fd55812a57 · faithful viscous API. Native-only drag components and effective Re are unavailable from this binding.

WASM SHA256 0c45c6f3ff5843b68a3b670a1f73a56a5cc669f4cda7cc231e9c02f646c0352e

Retained revisions and reasoning

Prepare a study

Revision consequences

Same-Cl coverage

Saved point evidence

Replace this study?