Detailed Evaluation & Buyer Recommendation
Thunder Jet 20 Chinook OS 2021 vs Thunder Jet 205 Rush 2021 — Same Brand, Different Boat
The Thunder Jet 20 Chinook OS 2021 vs Thunder Jet 205 Rush 2021 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.
Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Thunder Jet 20 Chinook OS 2021 and Thunder Jet 205 Rush 2021 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
Measurements / Dimensions
Length overall - Detail20.00 ft
Length overall - Detail20.00 ft
Length - Feet20
Length - Feet20
Length overall - Meters6.1
Length overall - Meters6.1
Length overall - Inches240
Length overall - Inches240
Engine and Drivetrain
Fuel tank capacity - Gal45
Fuel tank capacity - Gal29
Fuel tank capacity - Liters170.34
Fuel tank capacity - Liters109.78
Operational Info
Boat typePower
Boat typePower
Thunder Jet 20 Chinook OS 2021 vs Thunder Jet 205 Rush 2021 — Common Questions
Which is the larger boat — the Thunder Jet 20 Chinook OS 2021 or the Thunder Jet 205 Rush 2021?
The Thunder Jet 205 Rush 2021 is the longer of the two at 20,0 feet overall. The Thunder Jet 20 Chinook OS 2021 comes in at 20,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
How many people can each boat hold?
The Thunder Jet 20 Chinook OS 2021 is Coast Guard rated for 6 passengers, while the Thunder Jet 205 Rush 2021 is certified for 6. 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 has the larger fuel tank — the Thunder Jet 20 Chinook OS 2021 or the Thunder Jet 205 Rush 2021?
The Thunder Jet 20 Chinook OS 2021 has the bigger tank at 45 gallons, versus 29 gallons on the Thunder Jet 205 Rush 2021. That 16-gallon difference translates to roughly 48–80 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Thunder Jet 20 Chinook OS 2021 and Thunder Jet 205 Rush 2021 from the same manufacturer?
Yes — both the Thunder Jet 20 Chinook OS 2021 and the Thunder Jet 205 Rush 2021 are built by ThunderJet. 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.