Airfoil Data
B707D
BOEING 707 .54 SPAN AIRFOIL
Wing Geometry Simulator
The BOEING 707 .54 SPAN AIRFOIL is a thin 6.4% chord-thickness airfoil with a maximum camber of 3.2% at 40% chord, suited to high-speed UAVs, sailplane tip sections, and propeller blade design. At zero angle of attack the cambered geometry generates positive lift, giving an estimated zero-lift angle of -3.2°.
Thin airfoil theory predicts a stall angle near 11.9° and a peak lift-to-drag ratio around 53 at typical UAV and light-aircraft Reynolds numbers — useful benchmarks before running a full XFOIL or NeuralFoil polar. The slim profile minimises pressure drag at higher speeds but leaves limited spar depth for structural integration.
Designers evaluating the B707D typically compare it against profiles of similar thickness: NASA/LANGLEY RC-10(N)1 AIRFOIL, GOE 11K AIRFOIL, E186 (10.27%), NASA/AMES A-01 AIRFOIL, NASA/LANGLEY LS(1)-0013 AIRFOIL. The S9032 (9%) is another reference profile frequently considered alongside it.
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Related Airfoils
Engineers evaluating the B707D frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (6.4%) and max camber (3.2%).
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