What's new at BigFoil
2026-09-14
2026-09-05
- Added Dynamic Plotter, with near-complete access to the full database.
- Added XFOIL and NeuralFoil runs at ncrit=5 and 12, in addition to the ncrit=9 already present.
- NeuralFoil datapoints are restricted to analysis_confidence>=0.80. This removes datapoints where the machine learning surrogate model is uncertain, such as with heavily separated flows or extreme out-of-distribution geometries.
- Made new Compare Shapes tool.
2026-05-19
- Big upgrade to the Big Table, with much better display and sorting, and more useful display of moment coefficients at three different lift coefficients.
2025-03-19
- Added download links for DAT files of flapped shapes.
2025-03-11
2025-03-09
2024-12-30
2024-06-29
- Added Barnaby Wainfain airfoil BW 05 02 09
- Added bulk download of polars in Excel format
- Added download of The Big Table in Excel format
2023-08-17
2023-08-09
2023-06-25
- Change website structure to use a CSS sidebar instead of iframes
- Change Big Table and Visual Catalog to use Re=3M data instead of Re=6M
2023-03-24
- Changed The Big Table to use a different grid formatter. It is now easier to sort and filter.
- Corrected coordinates for Boeing J.
2023-02-01
2023-01-28
2023-01-22
2022-09-25
- Added DXF files of spline fit to the coordinate points.
2022-09-03
- Fixed coordinate error in NACA 2R112 and reprocessed.
2022-08-21
New features:
- Computed XFOIL data for each basic unflapped airfoil at ncrit=9 and Mach=0, 0.1, 0.25, 0.5.
The results are shown in the basic plots and data source comparison plots.
It is interesting to compare JavaFoil, XFOIL, CFD, and Wind Tunnel data. For this, airfoils such as NACA0012 and NACA23012 have large datasets.
- Basic data plots now show only the Re=6M data traces by default to reduce clutter. To view other cases, click on the trace in the legend.
2022-04-24
New features:
- Added X,Y,Z CSV file to "DAT and DXF files" pages for each airfoil. This file format is useful for input to CAD systems.
2022-04-11
New features:
2022-03-14
New features:
- Added Cm vs Cl plots.
- Added NACA 63-series airfoils NACA63A011 thru NACA63A018.
- Added new airfoils from Peter Wick.
- Added Lednicer and VisualFoil format DAT files.
2022-01-15
New features:
2021-12-05
New features:
- Added "What's New" page.
- Added search feature.
- Added camber lines and max camber calculation.
- Improved thickness calculation.
- Added thickness profile to Shape page.
- Added "Lift Curve Slopes" to Basic Data for each airfoil.
- Improved and debugged the "Find airfoil data" feature.
- Improved plot legend for "Similarly shaped airfoils".
- Fixed bug where NACA-TR-824 Re=9M wind tunnel data was mislabeled.
- In Basic Data, included wind tunnel data for rough airfoils.
- Improved speed of "Compare airfoil shapes".
New airfoils and new data:
- Added airfoils from the TraCFoil database, courtesy of J-C. Etiemble.
- Added Riblett ultralight airfoils GA 30U-612, GA 30U-615, and GA 30U-618, courtesy of Rich Buxton.
- Added more thickness variations of all Riblett airfoils.
- Added six TsAGI airfoils, courtesy of Jeri.
- Added NACA NACA2R112 and NACA2R212 from NACA-TR-460.
- Added Don Ayers airfoils.
- Added Drela horizontal tail HTxx airfoils.
- Added Stephane Combet SC17 and SC17s airfoils.
- Corrected coordinates for Yost EH 3.0/12.
- Reprocessed data for NACA43012A.
- Added Eberhard Mauk airfoils.
- Added OpenFoam CFD validation case for NACA0012.