Description
Harken 40mm Carbo Air Double Swivel Block | Boat Supply Store
For demanding sail trim applications requiring reduced friction and weight, the Harken 40mm Carbo Air Double Swivel Block provides robust performance. This block efficiently handles lines up to 10mm (3/8 inch) with a substantial maximum working load of 440 kg (970 lb). Its lightweight Carbo Air construction and low-friction sheave ensure smooth operation, making it an essential component for precise sail control on any vessel from dinghies to offshore cruisers.
Key Features
- Lightweight and strong Carbo Air construction for reduced overall rig weight.
- High working loads up to 440 kg for safe and efficient sail trimming.
- Low-friction sheave ensures smooth line movement under load.
- Compact and reliable design minimizes space requirements on deck.
- Double swivel configuration offers exceptional rigging versatility.
- Durable construction withstands harsh marine environments.
- Easy to rig onto existing lines and hardware.
- Performance-driven design favored by serious sailors.
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 40mm |
| Maximum Line Diameter | 10mm (3/8 inch) |
| Maximum Working Load | 440 kg (970 lb) |
| Swivel Type | Double Swivel |
Who This Is For
Sailors of all levels requiring reliable, lightweight, and high-performance blocks for their running rigging. This block is suitable for dinghy racers and cruising yachtsmen alike who prioritize efficiency and strength.
How It Compares
| Feature | Harken 40mm Carbo Air Double Swivel Block | Ronstan |
|---|---|---|
| Sheave Diameter | 40 mm | — |
| Maximum Line Diameter | 10 mm | — |
| Maximum Working Load (kg) | 440 kg | — |
| Weight | Not specified | Not specified |
| Swivel Type | Double Swivel | Double Swivel |
Common Concerns Answered
Is the price higher than basic blocks?
While the initial price may be a consideration compared to simpler blocks, the Harken 40mm Carbo Air Double Swivel Block's superior performance, lightweight strength, and long-term durability provide significant value, justifying the investment for serious sailors.
Are there any widely reported complaints?
Extensive user feedback indicates a highly positive sentiment for this specific Harken model, with no significant or widely reported complaints regarding its functionality or durability.
How does this block perform under significant load?
With a maximum working load of 440 kg (970 lb), this block is engineered for high-load applications, ensuring safe and easy sail trimming even in demanding conditions.
Frequently Asked Questions
What is the maximum line diameter this block can handle?
The Harken 40mm Carbo Air Double Swivel Block is designed to accommodate lines up to 10mm (3/8 inch) in diameter.
What is the working load limit for the Harken 40mm Carbo Air Double Swivel Block?
The maximum working load for this block is 440 kg (970 lb), ensuring reliable performance in rigorous sailing conditions.
How does the Carbo Air block compare to Harken's Black Magic line?
Carbo Air blocks, like this model, are known for their exceptional strength-to-weight ratio and low friction, often making them lighter and more affordable than traditional Black Magic blocks while maintaining high performance.
What are the advantages of using a swivel block?
Swivel blocks, particularly double swivel designs, offer enhanced versatility by allowing the block to pivot and align with the direction of the load, preventing line twist and optimizing lead angles to the winch or cleat.
Is this block suitable for high-load applications?
Yes, with a robust maximum working load of 440 kg (970 lb) and lightweight yet strong Carbo Air construction, this block is specifically designed for high-load applications on performance-oriented sailing vessels.
