Ronstan 40 RT Orbit Ratchet block Manual Ratchet

Item #: RF46102

Single, auto. Ronstan is the only company that offers a 40mm ratchet block with both auto and manual engagement models. With automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. Manual modes allow the ratchet mechanism to be switched on or off as required. This is the preferred mainsheet set-up for may top sailors.

The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. The Series 40 delivers up to 14:1 holding ower, almost double that of our nearest competititor. The unique sheave design has 8 gripping faces which directly resist loaded line movement. Traditional designs have an angled resistance to line movement.

The Dyneema® Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins. The system is compatible with Dyneema®/Spectra® strops, webbing and carbon connection points.

With auto models the sheet runds out smoothly and freely as soon as the ratchet mechnaism disengages. When engaged, and with manual models, the sheave cross-hole geometry eliminates the 'shuddering' ease-out that you can expect from traditional v-groove ratchet blocks.

Applications: Dinghy mainsheet systems. Mainsheet fine tune systems on sportsboats & small keel boats. Mainsheet systems on sportsboats using RF7 mainsheet swivel cleat unit. Spinnaker and job sheets on dinghies - especially modern asymmetric classes. Control line applications on larger yachts.