The Achilles RV-140SB-3T 2008 vs Achilles SU-14 2007 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.
On paper these two are close siblings in the size department - Achilles RV-140SB-3T 2008 at 14,0 ft versus Achilles SU-14 2007 at 14,0 ft. Weight tells a clearer story for trailering families: the Achilles SU-14 2007 tips the scales at 280 lbs - 120 lbs less than the Achilles RV-140SB-3T 2008 at 160 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.
The Achilles SU-14 2007 tops out at 55 hp. Engine specs for the Achilles RV-140SB-3T 2008 aren't listed - confirm with a dealer before selecting an outboard.
For family outings this is probably the sharpest distinction between the two. The Achilles RV-140SB-3T 2008 is rated for 9 passengers, while the Achilles SU-14 2007 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Achilles RV-140SB-3T 2008 could be the deciding factor.
Bottom line: Choose the Achilles RV-140SB-3T 2008 if your priority is putting more people on the water - it handles 9 passengers and at 14,0 ft it has the deck room to back that rating up comfortably. The Achilles SU-14 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.