VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University6747UnknownEstimation of weight efficiency of the power schemes of lift surfacesKomarovV. A.vkomarov@ssau.ruGumeniukA. V.vkomarov@ssau.ruSamara State Aerospace University180320021145540207201902072019Copyright © 2019, VESTNIK of Samara University. Aerospace and Mechanical Engineering2019<p>The primary problems of weight designing of power structures of wings are considered. The accuracy of theknown weight formulas is analysed. The new dimensionless criterion of power efficiency of designs is considered indetail. The new approach to the weight analysis at early stages of designing with usage of special models Final ElementMethod is offered. The examples of calculations are resulted.</p>