Supra Launch 21 2005 vs Supra Launch SS 2004 - Boat Spec Comparison

Q: Which is easier to trailer — the Supra Launch 21 2005 or the Supra Launch SS 2004?

For trailering, the Supra Launch 21 2005 has the edge at 32 lbs dry weight versus 305 lbs for the Supra Launch SS 2004. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.

Q: How many people can each boat hold?

The Supra Launch 21 2005 is Coast Guard rated for 13 passengers, while the Supra Launch SS 2004 is certified for 10. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.

Q: Which boat is wider, and does it affect trailering?

The Supra Launch 21 2005 measures 98" wide, compared to 95" for the Supra Launch SS 2004. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.

Q: How do the fuel tanks compare on the Supra Launch 21 2005 and Supra Launch SS 2004?

Both boats carry similar fuel loads — 36 gallons and 34 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Q: Are the Supra Launch 21 2005 and Supra Launch SS 2004 from the same manufacturer?

Yes — both the Supra Launch 21 2005 and the Supra Launch SS 2004 are built by Supra. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.

Boat Comparison

Supra Launch 21 2005 vs Supra Launch SS 2004

Supra

Supra Launch 21 2005

2005

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Supra

Supra Launch SS 2004

2004

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Detailed Evaluation & Buyer Recommendation

Supra Launch 21 2005 vs Supra Launch SS 2004 — Same Brand, Different Boat

The Supra Launch 21 2005 vs Supra Launch SS 2004 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.

For family outings this is probably the sharpest distinction between the two. The Supra Launch 21 2005 is rated for 13 passengers, while the Supra Launch SS 2004 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Supra Launch 21 2005 could be the deciding factor.

Bottom line: Choose the Supra Launch 21 2005 if your priority is putting more people on the water — it handles 13 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Supra Launch SS 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.

General Boat Info

MakeSupra

ModelLaunch 21

ModelLaunch SS

Model Year2005

Model Year2004

Measurements / Dimensions

Beam98 in

Beam95 in

Beam - Meters2.49

Beam - Meters2.41

Beam - Inches98

Beam - Inches95

Draft [max] - Detail24 in

Draft [max] - Detail22 in

Draft [max] - Meters0.61

Draft [max] - Meters0.56

Draft [max] - Inches24

Draft [max] - Inches22

Weight - Detail3,200 lbs

Weight - Detail3050 lbs

Weight - kg1451.49

Weight - kg1383.46

Weight - lbs.32

Weight - lbs.305

Length - Feet21

Length - Feetnot available

Length - Inches2

Length - Inchesnot available

Length overall - Detail21 ft. 2 in

Length overall - Detail21 ft. 8 in

Length overall - Meters6.45

Length overall - Meters6.6

Length overall - Inches254

Length overall - Inches26

Engine and Drivetrain

Engine/s standard325 hp, MPI

Engine/s standard320 HP

Fuel tank capacity - Detail36 gal

Fuel tank capacity - Detail34 gal

Fuel tank capacity - Liters136.27

Fuel tank capacity - Liters128.7

Fuel tank capacity - Gal36

Fuel tank capacity - Gal34

Operational Info

Maximum people13

Maximum people10 people

Supra Launch 21 2005 vs Supra Launch SS 2004 — Common Questions

Which is easier to trailer — the Supra Launch 21 2005 or the Supra Launch SS 2004?

For trailering, the Supra Launch 21 2005 has the edge at 32 lbs dry weight versus 305 lbs for the Supra Launch SS 2004. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.

How many people can each boat hold?

The Supra Launch 21 2005 is Coast Guard rated for 13 passengers, while the Supra Launch SS 2004 is certified for 10. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.

Which boat is wider, and does it affect trailering?

The Supra Launch 21 2005 measures 98" wide, compared to 95" for the Supra Launch SS 2004. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.

How do the fuel tanks compare on the Supra Launch 21 2005 and Supra Launch SS 2004?

Both boats carry similar fuel loads — 36 gallons and 34 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Are the Supra Launch 21 2005 and Supra Launch SS 2004 from the same manufacturer?

Yes — both the Supra Launch 21 2005 and the Supra Launch SS 2004 are built by Supra. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.

← Supra Launch 21 2005 full specs ← Supra Launch SS 2004 full specs