When two boats share the same hull type — in this case both the Fountain 33 Lightning 2010 and the Fountain 47 Lightning 2009 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Fountain 47 Lightning 2009 measures 47,3 feet overall (2009), giving it roughly 14,3 additional feet of deck space compared to the Fountain 33 Lightning 2010 at 33,0 feet (2010). At 88 lbs and 165 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 425 hp, the Fountain 33 Lightning 2010 has a 423-hp advantage over the Fountain 47 Lightning 2009's 2-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Fountain 33 Lightning 2010 carries 136 gallons versus 34 gallons in the Fountain 47 Lightning 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Fountain 47 Lightning 2009 is rated for 14 passengers, while the Fountain 33 Lightning 2010 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Fountain 47 Lightning 2009 could be the deciding factor.
Bottom line: Choose the Fountain 47 Lightning 2009 if your priority is putting more people on the water — it handles 14 passengers and at 47,3 ft it has the deck room to back that rating up comfortably. The Fountain 33 Lightning 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.