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Cobalt 240 SD (Not a Current Model)
(w/ 1 x 270-hp Volvo Penta 5.0L GXi)

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Brief Summary

You’ll have to look twice before realizing that the 240 SD is not your average sportboat. This sportdeck offers an exciting new look and a versatile platform for all your watersport activities

Key Features

  • Radar/GPS unit in dash
  • AM/FM stereo with CD player
  • Transom with walk-thru door
  • Concealed boarding ladder fore and aft
  • Radar arch
  • Ice chest
  • Wet bar
  • Porta-Potti concealed on the portside
  • 10-year hull/deck warranty
  • 5-year powertrain warranty
  • Specifications

    Length Overall 23' 9''
    Beam 8' 6''
    Dry Weight 4,350 lbs.
    Tested Weight N/A
    Draft 1' 6'' (min.)
    - Draft Up N/A
    - Draft Down N/A
    - Air Draft N/A
    Deadrise/Transom 16 deg.
    Max Headroom N/A
    Bridge Clearance 4' 9''
    Weight Capacity N/A
    Person Capacity N/A
    Fuel Capacity 50 gal.
    Water Capacity none
    Length on Trailer N/A
    Height on Trailer N/A
    Trailer Weight N/A
    Total Weight
    (Trailer, Boat, & Engine)

    Prices, features, designs, and equipment are subject to change. Please see your local dealer or visit the builder's website for the latest information available on this boat model.

    Engine Options

    Std. Power Not Available
    Tested Power 1 x 270-hp Volvo Penta 5.0L GXi
    Opt. Power 1 x 300-hp MerCruiser 350 Mag MPI Bravo I
    1 x 375-hp MerCruiser 496 Mag HO
    1 x 280-hp Volvo Penta 5.7 Gi SX
    1 x 420-hp Volvo Penta 8.1 Gi DP

    Test Results - Change Measurement Unit

    RPM MPH Knots GPH MPG NMPG Stat. Mile NM dBa
    500 3.6 3.1 0.8 4.5 3.9 223 194 68
    1000 6.3 5.4 1.4 4.6 4.0 229 199 85
    1500 8.4 7.3 2.7 3.2 2.8 157 136 87
    2000 11.9 10.3 4.1 2.9 2.5 143 124 87
    2500 19.8 17.2 5.7 3.5 3.0 172 149 90
    3000 26.7 23.2 7.4 3.6 3.1 179 155 85
    3500 32.8 28.5 10.3 3.2 2.8 158 138 85
    4000 38.8 33.7 14.0 2.8 2.4 138 120 88
    4500 43.7 38.0 19.4 2.3 2.0 112 97 94
    4900 48.8 42.4 23.6 2.1 1.8 103 89 96
    500 194 359 5.80 3.03 1.91 68
    1000 199 369 10.10 5.11 1.97 85
    1500 136 253 13.50 10.03 1.35 87
    2000 124 230 19.20 15.52 1.23 87
    2500 149 277 31.90 21.58 1.47 90
    3000 155 288 43.00 28.01 1.53 85
    3500 138 254 52.80 38.80 1.36 85
    4000 120 222 62.40 52.81 1.18 88
    4500 97 180 70.30 73.25 0.96 94
    4900 89 166 78.50 89.15 0.88 96

    All fuel consumption numbers are the total for all engines in the boat. Speeds are measured with Stalker ProSports radar gun or GPS. Fuel consumption (gallons per hour) measured with Floscan digital fuel-flow meter or by on-board factory-installed diagnostic instruments. Range is based on 90% of published fuel capacity. Sound levels determined using Radio Shack digital decibel meter on A scale. 68 dBA is the level of normal conversation. Time to plane is measured from start of acceleration to formation of rooster tail behind boat.

    Performance Chart

    Performance Chart

    Acceleration Times & Test Conditions

    Time To Plane 3.9 sec.
    0 to 30 6.1 sec.
    Ratio 1.95 : 1
    Props F6s
    Load 2 persons, 1/2 fuel, no water, min. gear
    Climate 75 deg., 60% humid.; wind: calm; seas: 1' chop

    Cobalt 240 SD (Not a Current Model) Line Drawing


    Captain's Report

    Lake Geneva, Wisconsin in September shouldn’t remind you of Florida, but the weather there sure did! Cobalt had a long list of boats for us to test and had reserved sunshine for each day. Only had to deal with heat some ten degrees more than they should be having this week. The experience with Cobalt’s on scene team was worth it.Cobalt boats are built in Neodesha [Nee-oh-de-shay], Kansas named by the Osage for the meeting of the waters. Apparently the small town atmosphere and neighborly feeling is good for boat building. In fact, they don’t build them they craft them. This privately held company puts its product and its customers in highest regard. I have heard that from many, but felt it from few. My calls to Bret were all met quickly and with professionalism. We went into the shoot feeling we had a lot to do and very little time to get it done. Bret Chilcott, Director Marketing and Export Sales, made it much easier to get the job done. He explained they put the customer first and went more than the extra mile to get the job done. His crew proved that with the support and hospitality we received. From the front, the 240 Sport Deck’s pickle fork front end looks odd, but when you walk on around to the side, you see that the hull form looks more like a familiar bow rider. With this design, you get the excellent looks of the bow rider with the utilitarian hull of a deck boat. I could slide right up on a beach with the outdrive up and have a stable platform when offloading the family and friends. I will have to come up with a better excuse for spilling my margarita next time.The 240 SD won Runabout of the Year awards for 2002 and was one of the boats in the JD Power awards as well. She is a fine ski boat and a truly versatile I/O performer. You can board her from the water at the front as easy as the back. All through bolts are backed with aluminum backing plates, and through-hulls are stainless for durability.Cobalt really put a lot of thought into the production and versatility of this model. While keeping the ride and appearance of a sport boat, they built the utility of the deck boat. Entry is from front or back swim platforms with swim ladders for water entry. Side entry is assisted with cut outs that are non-slip protected. Skis can be loaded from the stern platform through a hatch so you do whack someone with the skis trying to store them in the cockpit. Nets are fastened in another storage bin to put your wet stuff and allow the engine to dry it while you cruise along. Cup holders are plentiful enough to satisfy the crowd you surely will have aboard. The table even hides away in the floor when not in use. Very smart!How many times have you had to warn the kids (regardless of age) about lifting themselves up on the windshield between the walk through? Well Cobalt has made their support strong enough to hold a fully-grown (overgrown some say) man off the floor without buckling or swaying. They even have a patent pending on the windshield latch that is strong enough to hold the windshield in place at cruise speed while open.The 240 SD has tons of storage around and under the seating for all the water toys, snacks and other goodies for a long day on the water. Her seats are hinged to keep them aboard even in a strong breeze and the compartments are carpeted to protect what you carry. The anchor locker is fully padded with rubber to protect the interior fiberglass. Night lighting of the cockpit is all indirect to save your vision. This sport boat hides her deckboat identity within her 23’9” length and trailerable 8’6” beam well. At just 4,350lbs dry weight, she should be easily towed with any vehicle properly outfitted and sound enough for towing. Her colors are molded in and there is no top stripe to fade as in many boats her size. She has a page long list of options for power plants from Volvo and MerCruiser. Her standard items list leaves little to add to the options list, but I did enjoy the satellite radio and electric assist devices my test boat had. Check out their site for the complete list of standard and optional equipment.Test conditions were good on Monday, but on Sunday, there was significant wake action from all the thousands of boats on Lake Geneva. Even so, she was a comfortable, dry ride in the heavy chop. She was also a considerable water athlete. We were able to test her through the entire range on Monday. She cruised best around 3000rpms with her Volvo 5.0L GXi. At cruise, she is running 26.7mph and sipping 7.4gph from her 50-gallon fuel tank. At this rate, you are going to have to go around 179 miles before a pit stop. Jumping on to full throttle, she is at 4500rpms, 43.7mph and fuel consumption goes to 19.35gph. Range goes down to 112 miles at top speed. She is a respectable 3.9 seconds out of the hole, so you really can ski with her. She is cruising along at 30mph in just 6.1 seconds.She may be a relatively new deckboat to the market, but she has the power, looks and capacity to take a group out for a fun day on the water whether skiing, wakeboarding or just cruising the bay. Test drive one today at your favorite Cobalt dealer.By Capt. Bob SmithTest Captain

    Test Result Highlights

    • Top speed for the Cobalt 240 SD (Not a Current Model) is 48.8 mph (78.5 kph), burning 23.55 gallons per hour (gph) or 89.14 liters per hour (lph).
    • Best cruise for the Cobalt 240 SD (Not a Current Model) is 26.7 mph (43 kph), and the boat gets 3.61 miles per gallon (mpg) or 1.53 kilometers per liter (kpl), giving the boat a cruising range of 179 miles (288.07 kilometers).
    • Tested power is 1 x 270-hp Volvo Penta 5.0L GXi.

    Standard and Optional Features


    CD Stereo Standard
    Head: Portable Standard
    Head: Fixed Standard
    Power Steering Standard
    Shore Power Standard
    Trim Tabs Optional
    Washdown: Fresh Water Optional

    Exterior Features

    Ice Chest Standard
    Outlet: 12-Volt Acc Standard
    Swim Ladder Standard
    Swim Platform Standard
    Transom Door Standard
    Transom Shower Optional


    Bimini Top Optional
    Cockpit Cover Optional
    Full Canvas Optional


    Hull Warranty
    Deck Warranty
    Transferable Extendable
    10-Years 10-Year transferable protection No
    Engine Warranty
    5-Year No
    Powertrain Warranty
    5-Year transferable protection
    Gelcoat Warranty
    2-Year transferable protection
    Accessories Warranty
    1-2 Year Yes
    ISO Certification NMMA Certification Yes
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