Airfoil Data
IST-MT1-15

The IST-MT1-15 is a 14.9% chord-thickness airfoil with a maximum camber of 7.4% at 43% 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 -7.4°.

Thin airfoil theory predicts a stall angle near 10.6° 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-MT1-15 typically compare it against profiles of similar thickness: GOE 217 (MVA MK.12) AIRFOIL, GOE 229 (MVA H.39) AIRFOIL, GOE 422 AIRFOIL, IST-MT1-24, GOE 652 AIRFOIL. The MH 94 16.03% is another reference profile frequently considered alongside it.