CET Blocks: Helicopter Stringing
These two or three bundled blocks are designed for stringing the pilot rope by a helicopter. The pilot rope is automatically positioned in the (central) wheel. Special guides ensure the correct positioning of the rope during stringing operations. Wheels constructed from aluminum alloy are mounted on ball bearings; lateral wheel grooves are lined with a neoprene ring, while the central groove is constructed of wear-proof interchangeable nylatron sectors.
- Galvanized steel frame
- Supplied with fixed connection
Grounding device or complete conductive sheaves are available upon request.
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Models
| Model | Dimensions inches (mm) | Breaking Load lbf (kN) |
Mass lbs (kg) |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | I | L | |||
| 21003000 | 31/32 (25) |
15/16 (24) |
2 11/16 (68) |
32 (800) |
70 (1775) |
30 (765) |
35 (893) |
29 (729) |
16 (400) |
6 (145) |
40466 (180) |
392 (178) |
| 21003010 | 31/32 (25) |
15/16 (24) |
3 3/4 (95) |
32 (800) |
70 (1775) |
30 (765) |
35 (893) |
32 (805) |
16 (400) |
7 (175) |
40466 (180) |
437 (198) |
| 21003200* | 31/32 (25) |
15/16 (24) |
3 3/4 (95) |
39 (1000) |
78 (1980) |
30 (765) |
43 (1100) |
32 (805) |
16 (400) |
7 (175) |
44962 (200) |
516 (234) |
| Part Number | |
|---|---|
| 21000208 | 2 or 3 Conductor Headboard |
| 21000911 | Ground for 3-Bundle Helicopter Block |
*Lateral wheels with nylatron lining
Sectors in IEEE nylatron and aluminum or solid aluminum wheels are available upon request
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