The RM Yachts RM 1050 Twin keel Twin keel 1998 vs RM Yachts RM 1180 Twin keel Twin keel 2015 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The RM Yachts RM 1180 Twin keel Twin keel 2015 measures 42,1 feet overall (2015), giving it roughly 15,7 additional feet of deck space compared to the RM Yachts RM 1050 Twin keel Twin keel 1998 at 26,4 feet (1998). Weight tells a clearer story for trailering families: the RM Yachts RM 1180 Twin keel Twin keel 2015 tips the scales at 15 432 lbs — 3 307 lbs less than the RM Yachts RM 1050 Twin keel Twin keel 1998 at 12 125 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats share a closely matched power ceiling — 30 hp for the RM Yachts RM 1050 Twin keel Twin keel 1998 and 50 hp for the RM Yachts RM 1180 Twin keel Twin keel 2015. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 26 gal and 28 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The RM Yachts RM 1180 Twin keel Twin keel 2015 is rated for 12 passengers, while the RM Yachts RM 1050 Twin keel Twin keel 1998 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the RM Yachts RM 1180 Twin keel Twin keel 2015 could be the deciding factor.
Displacement is where these two sailboats genuinely part ways. The RM Yachts RM 1180 Twin keel Twin keel 2015 displaces 15 432 lbs — a 3 307-lb difference over the RM Yachts RM 1050 Twin keel Twin keel 1998 at 12 125 lbs. That gap separates two entirely different categories of sailing: the heavier boat is built for offshore passage-making and load-carrying, while the lighter hull rewards performance sailing and easier handling in lighter air.
Draft is a practical consideration that many buyers underestimate until they're already at the marina. The RM Yachts RM 1180 Twin keel Twin keel 2015 draws 6,5 ft, compared to 5,2 ft for the RM Yachts RM 1050 Twin keel Twin keel 1998. That 1,3-foot difference affects which anchorages you can access, which haul-out facilities will take you, and how carefully you need to read the tide tables in shallower cruising grounds.
The RM Yachts RM 1050 Twin keel Twin keel 1998 is rigged as a cutter while the RM Yachts RM 1180 Twin keel Twin keel 2015 carries Sloop rigging — a meaningful difference in sail handling complexity, upwind performance, and the size of crew you'll need to work the boat comfortably. Helm style differs too: the RM Yachts RM 1050 Twin keel Twin keel 1998 uses a 1 tiller versus a 2 wheels on the RM Yachts RM 1180 Twin keel Twin keel 2015. Wheel helms give better leverage and visibility on larger boats; tillers offer direct feedback and simplicity on smaller ones. For auxiliary power the RM Yachts RM 1180 Twin keel Twin keel 2015 carries a 50-hp engine against 30 hp on the RM Yachts RM 1050 Twin keel Twin keel 1998. Motoring range and ability to punch through a foul current or enter a tight marina under power will favour the more powerful installation.
For extended cruising, water capacity matters: the RM Yachts RM 1050 Twin keel Twin keel 1998 carries 180 gallons versus 79 gallons on the RM Yachts RM 1180 Twin keel Twin keel 2015 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.
Bottom line: The RM Yachts RM 1180 Twin keel Twin keel 2015 is the offshore and bluewater choice — at 15 432 lbs displacement and 42 ft it has the load capacity, range, and seakeeping for extended passages. The RM Yachts RM 1050 Twin keel Twin keel 1998 at 12 125 lbs is the more nimble, accessible option — easier to single-hand and better suited to coastal and inland sailing.