FIELD: aeronautical engineering; propeller blades made from composite materials. SUBSTANCE: propeller blade includes spar and tail section. Shank of spar is provided with coupling holes. Shank is embraced by upper and lower cover plates on side of end face. Bushes projecting above surface of cover plates are received by coupling holes. Washers embrace sections of bushes projecting above surface of shank. Cover plates have holes for washers. Diameter of these holes makes it possible to fit washers at spaced relation. Upper and lower cover plates are fitted on side of end face of shank by lap or butt joint with backing. EFFECT: possibility of keeping shank intact at longitudinal deformations; enhanced reliability of blade. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HELICOPTER MAIN ROTOR BLADE | 1999 |
|
RU2148532C1 |
| SCREW PROPELLER | 2014 |
|
RU2544442C1 |
| MULTI-CIRCUIT PROPELLER BLADE | 2021 |
|
RU2767574C1 |
| METHOD OF PROPELLER BLADES STATIC ALIGNMENT | 2007 |
|
RU2336508C1 |
| NOZZLE FOR EXHAUST BRANCH PIPE OF GAS-TURBINE ENGINE OF DOUBLE-ENGINE PO WER PLANT OF HELICOPTER | 2003 |
|
RU2230005C1 |
| METHOD OF PROTECTION OF HELICOPTER FUEL TANKS AGAINST THERMAL EFFECT OF LIGHTNING CURRENT | 2000 |
|
RU2192991C2 |
| MULTILAYER ARMORED OBSTACLE | 2001 |
|
RU2180426C1 |
| HIGH-SPEED COMBINED HELICOPTER | 2014 |
|
RU2555086C1 |
| DEVICE FOR ADDITIONAL COMPENSATION OF REACTIVE TORQUE OF SINGLE-ROTOR HELICOPTER | 2005 |
|
RU2281226C1 |
| DEVICE FOR AZIMUTHAL ORIENTATION OF CARGO ON AIRCRAFT EXTERNAL SUSPENSION | 2010 |
|
RU2429166C1 |
