Airfoil Data
IST-MT1-21
IST-MT1-21
Wing Geometry Simulator
The IST-MT1-21 is a 14.7% chord-thickness airfoil with a maximum camber of 7.3% at 35% chord, suited to high-lift UAV wings, RC sailplanes, and low-Reynolds-number slow-flyers. At zero angle of attack the cambered geometry generates positive lift, giving an estimated zero-lift angle of -7.3°.
Thin airfoil theory predicts a stall angle near 10.7° and a peak lift-to-drag ratio around 72 at typical UAV and light-aircraft Reynolds numbers — useful benchmarks before running a full XFOIL or NeuralFoil polar. The 15% thickness provides structural depth for main-spar placement without excessive drag penalty at moderate speeds.
Designers evaluating the IST-MT1-21 typically compare it against profiles of similar thickness: GOE 242 (MVA PR.2) AIRFOIL, FX 83-W-227, GOE 424 AIRFOIL, EPPLER 857 AIRFOIL, DEFIANT CANARD BL20 AIRFOIL. The EPPLER 637 AIRFOIL is another reference profile frequently considered alongside it.
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Engineers evaluating the IST-MT1-21 frequently compare it against profiles with comparable geometric constraints. Below are the closest matches based on maximum thickness (14.7%) and max camber (7.3%).
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