FIELD: aircraft manufacture; manufacture of load-bearing structural members. SUBSTANCE: one of cross-sections of spar has boundary line of section; part of this line is made in form of fragment or combination of fragments of oblique taper section of right circular cone. EFFECT: improved strength characteristics (rigidity) during operation under cyclic flexure; enhanced efficiency of fixation between body and adjoining part. 16 cl, 24 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SHIP'S LONGERON | 1999 |
|
RU2143379C1 |
| FLYING VEHICLE RIB | 1999 |
|
RU2144485C1 |
| SHIP'S STRINGER | 1999 |
|
RU2143365C1 |
| SHIP'S FRAME | 1999 |
|
RU2143364C1 |
| FLYING VEHICLE STRINGER | 1999 |
|
RU2144487C1 |
| FLYING VEHICLE FRAME | 1999 |
|
RU2144486C1 |
| STUD | 1999 |
|
RU2143612C1 |
| RIVET | 1999 |
|
RU2143607C1 |
| BOLT | 1999 |
|
RU2143611C1 |
| NUT | 1999 |
|
RU2144148C1 |
