According to Herot, the NMP blocks are designed to close the gap between simple round thimbles and high-load blocks. The fixed part is guided through the central opening and secured against twisting with cable ties or by sewing it to the side slots. The loose part runs between the jaws of the block. The possible applications range from the folding runner block in the top of the mainsail or jib to reefing blocks in the main and cascades for the downhaul or backstay. The NMP blocks can also be used for barber haulers. In contrast to the thimble, the sheet does not have to be threaded through, as the fitting can simply be placed over the sheet like a snatch block with an open loop for fastening.
The NMP blocks are available in five sizes for rope diameters from 5 to 14 millimetres, with the smallest weighing just 5 grams for 49 euros and already offering a working load of 1000 decanewtons.
Further information and dealer details at www.tyetec.de and www.frisch.de.
Hauke Schmidt
Test & Technology editor
