Crestliner Backwater Series 1870 Tiller 2009 boat specs
Crestliner
Crestliner Backwater Series 1870 Tiller 2009
2009
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VS
Crestliner Fish Hawk 1650 SC 2005 boat specs
Crestliner
Crestliner Fish Hawk 1650 SC 2005
2005
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Crestliner Backwater Series 1870 Tiller 2009 vs Crestliner Fish Hawk 1650 SC 2005: Same Brand, Different Boat

The Crestliner Backwater Series 1870 Tiller 2009 vs Crestliner Fish Hawk 1650 SC 2005 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 - Crestliner Backwater Series 1870 Tiller 2009 at 18,0 ft versus Crestliner Fish Hawk 1650 SC 2005 at 16,0 ft. Weight tells a clearer story for trailering families: the Crestliner Backwater Series 1870 Tiller 2009 tips the scales at 1 115 lbs - 235 lbs more than the Crestliner Fish Hawk 1650 SC 2005 at 880 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.

Both boats share a closely matched power ceiling - 75 hp for the Crestliner Backwater Series 1870 Tiller 2009 and 90 hp for the Crestliner Fish Hawk 1650 SC 2005. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.

Both boats are rated for 5 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.

At this size, power-to-weight ratio matters more than outright horsepower. The Crestliner Fish Hawk 1650 SC 2005 comes in at 10 lbs per hp versus 15 lbs per hp for the Crestliner Backwater Series 1870 Tiller 2009. The lower the ratio the more explosive the acceleration - meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: The Crestliner Backwater Series 1870 Tiller 2009 and Crestliner Fish Hawk 1650 SC 2005 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.
General Boat Info
MakeCrestliner
MakeCrestliner
ModelBackwater Series 1870 Tiller
ModelFish Hawk 1650 SC
Model Year2009
Model Year2005
Measurements / Dimensions
Beam90.5 in. (230 cm)
Beam87 in. (221 cm)
Beam - Meters2.31
Beam - Meters2.21
Beam - Inches90.5
Beam - Inches87
Deadrise10℃
Deadrisenot available
Weight - Detail1,115 lbs. (506 kg) hull
Weight - Detail880 lbs. (399 kg)
Weight - kg505.76
Weight - kg399.16
Weight - lbs.1115
Weight - lbs.880
Width [transom] - Detail70 in. (178 cm)
Width [transom] - Detail87 in. (221 cm)
Height - Detail23 in. (58 cm)
Height - Detail35 in. (89 cm)
Height - Meters0.58
Height - Meters0.89
Height - Inches23
Height - Inches35
Height [transom]20 in. (51 cm)
Height [transom]20 in. (51 cm)
Length - Meters5.5
Length - Meters4.8
Length - Feet18
Length - Feet16
Length overall - Detail18 ft. 0 in. (5.5 m)
Length overall - Detail16 ft. 0 in. (4.8 m)
Length overall - Meters5.49
Length overall - Meters4.88
Length overall - Inches216
Length overall - Inches192
Depth - Detailnot available
Depth - Detail24 in. (61 cm)
Depth - Centimetersnot available
Depth - Centimeters60.96
Depth - Inchesnot available
Depth - Inches24
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull thickness0.100 in.
Hull thicknessBottom: .090 Sides: .080 Transom: .125
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Fuel tank capacity - DetailPortable
Fuel tank capacity - Detail18 gal. (68 l)
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typeOutboard
Engine max75 hp
Engine max90 hp
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters68.14
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal18
Operational Info
Maximum capacity1,290 lbs. (585 kg)
Maximum capacity1,200 lbs. (544 kg)
Maximum people5
Maximum people5
Trailer Info
Trailer - Detailnot available
Trailer - DetailOptional

Crestliner Backwater Series 1870 Tiller 2009 vs Crestliner Fish Hawk 1650 SC 2005 - Common Questions

Which is the larger boat - the Crestliner Backwater Series 1870 Tiller 2009 or the Crestliner Fish Hawk 1650 SC 2005?
The Crestliner Backwater Series 1870 Tiller 2009 is the longer of the two at 18,0 feet overall. The Crestliner Fish Hawk 1650 SC 2005 comes in at 16,0 feet, making it roughly 2,0 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the Crestliner Backwater Series 1870 Tiller 2009 or the Crestliner Fish Hawk 1650 SC 2005?
For trailering, the Crestliner Fish Hawk 1650 SC 2005 has the edge at 880 lbs dry weight versus 1 115 lbs for the Crestliner Backwater Series 1870 Tiller 2009. 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.
Which boat can handle a bigger outboard?
The Crestliner Fish Hawk 1650 SC 2005 is rated to a maximum of 90 hp, giving it the larger power ceiling. The Crestliner Backwater Series 1870 Tiller 2009 tops out at 75 hp. Keep in mind that maximum ratings are just that - matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Crestliner Backwater Series 1870 Tiller 2009 is Coast Guard rated for 5 passengers, while the Crestliner Fish Hawk 1650 SC 2005 is certified for 5. 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 better power-to-weight ratio?
The Crestliner Fish Hawk 1650 SC 2005 has a better power-to-weight ratio at 10 lbs per hp compared to 15 lbs per hp for the Crestliner Backwater Series 1870 Tiller 2009. A lower number means quicker acceleration and faster time to plane - the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Crestliner Backwater Series 1870 Tiller 2009 measures 91" wide, compared to 87" for the Crestliner Fish Hawk 1650 SC 2005. 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.
Are the Crestliner Backwater Series 1870 Tiller 2009 and Crestliner Fish Hawk 1650 SC 2005 from the same manufacturer?
Yes - both the Crestliner Backwater Series 1870 Tiller 2009 and the Crestliner Fish Hawk 1650 SC 2005 are built by Crestliner. 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.