SM701
New! Bulk download of polars in Excel format: sm701.xlsx
Info | DAT and DXF files | Shape | Venkataraman Fit | Applications (1) | Similarly shaped airfoils
Plain Flapped Shapes: 25% flap chord | 30% flap chord | 35% flap chord | 40% flap chord
Basic Data: cl vs α | cd vs α | cm vs α | cl/cd vs α | cd vs cl | cl/cd vs cl | cl vs cd | cm vs cl | Curve fits | Lift curve slopes
Data source comparison (Codes, CFD, Wind tunnel)
Compressibility Effects: cl vs α | cd vs α | cm vs α | cl/cd vs α | cd vs cl | cl/cd vs cl | cl vs cd | cm vs cl
Roughness Effects: cl vs α | cd vs α | cm vs α | cl/cd vs α | cd vs cl | cl/cd vs cl | cl vs cd | cm vs cl
Plain Flap Effects: cl,max vs flap deflection: all flap chords | 25% flap chord | 30% flap chord | 35% flap chord | 40% flap chord
Plain Flap Effects: cl vs α for various flap deflections: 25% flap chord | 30% flap chord | 35% flap chord | 40% flap chord
Plain Flap Effects: cm vs α for various flap deflections: 25% flap chord | 30% flap chord | 35% flap chord | 40% flap chord
Plain Flap Effects: cd vs α for various flap deflections: 25% flap chord | 30% flap chord | 35% flap chord | 40% flap chord
Disclaimer: All information presented herein is delivered without guarantee or warranty of any kind. The user assumes the entire risk of use of this information.
DB Name: sm701
Family: Uncategorized
Max thickness: 16.0% at x = 35.76% chord
Max camber: 3.5% at x = 59.97% chord
Available data sources:
JavaFoil+Calcfoil stall+Eppler ext transition
XFOIL ncrit=9
Wind tunnel (Althaus & Wirz)
Wind tunnel (Nicks et. al.)
CFD (Gotten et. al.)
Notes:
Coordinates from UIUC Airfoil Coordinates Database https://m-selig.ae.illinois.edu/ads/coord_database.html
Wind tunnel data from Althaus, D., and Wurz, W., "Wind Tunnel Tests of the SM701 Airfoil and the UAG 88-143/20 Airfoil," Technical Soaring; Vol. 17, No. 1, 1993, pp. 21-32.
Wind tunnel data from Nicks, O., Steen, G., Heffner, M., and Bauer, D., "Wind Tunnel Investigation and Analysis of the SM701 Airfoil," Technical Soaring; Vol. 16, No. 4, 1992, pp. 109-115.
CFD Data from Gotten. et. al., "A Highly Automated Method for Simulating Airfoil Characteristics at low Reynolds Number using a RANS-transition Approach," Deutscher Luft- und Raumfahrtkongress 2019, https://www.dglr.de/publikationen/2020/490026.pdf