PROPELLER AERODYNAMIC MODEL VANE AND METHOD OF ITS FABRICATION Russian patent published in 2012 - IPC G01M9/08 

FIELD: aircraft engineering.

SUBSTANCE: proposed method consists in producing skins from polymer composite material, nose plate, spar, tail section filler, tip, end rib, nose extension, gluing all elements into closed-shape single structure, and applying polymer coat onto outer surface. Multilayer skins have reinforcements in spar attachment area made by increasing the number of layers. Note here that in making polymer composite material, binder weight does not exceed that of fiberglass while spar is made from materials suitable for milling. Then, plate is secured on spar rear wall. Besides, holes of preset diameter, quantity and location are made in tail section filler. Then, check sections are marked on vane outer surface to represent lines located at definite distance from the center of rotation.

EFFECT: increased margin of safety, faster fabrication.

6 cl, 4 dwg