It's my first question & I really want to know the answer from professionals to decide if my new design of airfoil is worth it because the initial test by CFD software (Fluent-ANSYS) indicate that I can beat Supercritical airfoil. **
We know that supercitical "Whitcomb's" airfoil is the best for transonic regime in aero-performance.
So, why Boeing company doesn't use supercritical airfoil concept similar to Airbus especially in the root part of wing. The shape of Boeing's airfoil is differ too much from Airbus. Is have something related with size, pitch moment, structural or intellectual patent rights? *
I really don't like the answers of "confidential data which can't be disclosed" because as I noticed the Lift-drag ratio of Boeing is always less than Airbus & the reason for that very obvious (They don't use Whitconmb's Airfoil Principle)