When two boats share the same hull type — in this case both the ThunderJet Bull Dog 20 ft. 2013 and the ThunderJet Maxim Classic 2009 are modified vee designs with aluminum 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 ThunderJet Maxim Classic 2009 measures 23,0 feet overall (2009), giving it roughly 21,0 additional feet of deck space compared to the ThunderJet Bull Dog 20 ft. 2013 at 2,0 feet (2013). At 33 lbs and 45 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 ThunderJet Bull Dog 20 ft. 2013 carries a rated maximum of 320 hp. Engine data for the ThunderJet Maxim Classic 2009 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the ThunderJet Bull Dog 20 ft. 2013 carries 48 gallons versus 8 gallons in the ThunderJet Maxim Classic 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 ThunderJet Maxim Classic 2009 is rated for 7 passengers, while the ThunderJet Bull Dog 20 ft. 2013 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the ThunderJet Maxim Classic 2009 could be the deciding factor.
Bottom line: Choose the ThunderJet Maxim Classic 2009 if your priority is putting more people on the water — it handles 7 passengers and at 23,0 ft it has the deck room to back that rating up comfortably. The ThunderJet Bull Dog 20 ft. 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.