Glastron GLS 235 (2009-10)

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BoatTest.Com
Overview

The next to the largest boat in this new GLS series (Glastron Luxury Series) is the GLS 235. At nearly 24’ length overall, she felt like she was closer to 26’ with the roomy cockpit and comfortable seating. By the end of the day, I was really enjoying the aft facing rumble seat!

Our GLS 235 was powered with a 300-hp stern drive engine and delivered over 47 mph. The sole locker was large enough to stuff all the canvas inside when the rain went away and the snap-in carpet has a teak-looking design that really dressed up the looks and made clean-up a breeze. The primary gauges were large and easy to see and the bucket seats, well let’s just say, I could have ridden around on them all day!

The builder claims that the GLS line is the “…most advanced bowrider series Glastron has ever built.” That is quite a statement from a company that has built hundreds of thousands of boats over the last 50 years.



Key Features

  • Adjustable SuspensionAire bucket seats with flip-up bolsters
  • AM/FM/CD Sirius satellite-ready stereo with 4 speakers & MP3 adaptor
  • Automatic bilge pump
  • Flip-up bow filler with pad
  • Flip-up rumble seat
  • Hinged ski locker lid with latch
  • Molded extended swim platform
  • Ski locker with mat & hinged lid
  • Snap-in carpet
  • Stainless steel bow & stern eyes/throttle control plate/courtesy lights/drink holders/speaker covers/pull-up cleats/rubrail insert/stern rails
  • Stainless steel telescopic 3-step boarding ladders (fore & aft)
  • Starboard storage compartments
  • Sunlounge
  • Sunlounge storage compartment
  • Tilt steering wheel
  • U-shaped cockpit seating with swivel seat/foot rest
  • Unitized fiberglass floor/deck
  • Walk-thru windshield with full side wings
  • Walk-thru transom with swing-away gate
  • Woodgrain steering wheel
  • Test Results   (Printer Friendly Page)

    Test Power: 1 x 300-hp Volvo Penta 5.7 GXi gas sterndrive
      Range  
    RPM MPH Knots Total GPH MPG NMPG Stat. Mile NM   KM    KPH    LPH    KPL   dBA
    600 3.4 3.0 0.8 4.20 3.65 212 184 341 5.47 3 1.79 65
    1000 5.8 5.0 1.5 3.82 3.32 193 167 311 9.33 5.7 1.62 72
    1500 7.5 6.5 2.5 2.95 2.57 149 129 240 12.07 9.5 1.25 72
    2000 9.9 8.6 4.7 2.12 1.84 107 92 172 15.93 17.8 0.9 84
    2500 19.0 16.5 6.1 3.10 2.69 156 136 251 30.58 23.1 1.32 83
    3000 26.8 23.3 8.5 3.14 2.73 158 138 254 43.13 32.2 1.34 85
    3500 32.9 28.6 11.8 2.79 2.42 141 122 227 52.95 44.7 1.19 89
    4000 37.1 32.2 15.8 2.35 2.04 118 103 190 59.71 59.8 1 92
    4500 46.0 40.0 21.4 2.15 1.87 108 94 174 74.03 81 0.91 94
    4645 47.4 41.2 21.2 2.23 1.94 113 98 182 76.28 80.2 0.95 96

    Speeds measured with Stalker ProSports radar gun. Fuel consumption (gallons per hour) measured with Floscan digital fuel-flow meter on gas inboards, sterndrives, and outboards, TechMate electronic scan tool on gas EFI inboards, Caterpillar digital fuel-flow meter on diesel engines, or permanently installed fuel-monitoring equipment. 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.

    Performance Chart

    Performance Chart

    Test Conditions

    Test Power: 1 x 300-hp Volvo Penta 5.7 GXi gas sterndrive
    Time To Plane 3.8 sec.
    0 to 30 8.6 sec.
    Test Power 1 x 300-hp Volvo Penta 5.7 GXi gas sterndrive
    Transmission Volvo Penta SP
    Ratio 1.95 : 1
    Props 14 x 19 aluminum
    Load 3 persons, 1/2 fuel, no water, 75 lbs. of gear
    Climate 86 deg., 28% humid., wind: 9 mph; seas: minimal chop

    Engine Options

    Glastron GLS 235 (2009-10)
    Std. Power 1 x 250-hp MerCruiser 5.7L Alpha
    Tested Power 1 x 300-hp Volvo Penta 5.7 GXi gas sterndrive
    Opt. Power Choice of MerCruiser or Volvo Penta up to 375-hp
    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.

    Standard and Optional Equipment

    Standard and Optional Equipment
    Systems
    CD Stereo Standard
    Power Steering Standard
    Trailer Standard
    Exterior Features
    Carpet: Cockpit Standard
    Swim Ladder Standard
    Swim Platform Standard
    Tower: Watersports Optional
    Canvas
    Bimini Top Optional
    Cockpit Cover Optional
    Full Canvas Optional

    Standard = Standard Optional = Optional

    Glastron GLS 235

    By Capt. Rob Smith

    Building on the success of its heritage, Glastron wanted to exceed the buyers’ expectations with the new GLS 235. Having tested Glastron several times over the years, I have to say, I too was impressed with the quality and materials in the GLS line. She is 24’ LOA, but in comfort and spaciousness, she seems more like a 26-footer.

    Glastron GLS 235 2009

    The builder claims that the GLS line is the “...most advanced bowrider series Glastron has ever built.” That is quite a statement from a company that has built hundreds of thousands of boats over the last 50 years.

    I have mentioned in the other GLS tests that I was quite impressed with the stainless steel exhaust vents. Impressed because they look as if you could put them under a steam roller without breaking them. Impressed because about the first things usually to break on a sportboat are the plastic engine air vents and I don’t think that will be happening on the GLS series.

    Glastron GLS 235 2009

    In the Bow

    The bow area was actually quite comfortable to relax in. I measured about 60” across the top of the seat cushion and nearly as much from gunwale to gunwale in the bow. There are speakers to enjoy the music whether in the bow or the cockpit. Along the side are two stainless steel drink holders and a heavy duty grab bar. When you nudge up onto a sand bar or up to a beach, you have stainless steel boarding ladders off the bow or the integrated swim platform at the stern. Both are three step concealed ladders. I like a four step ladder for the bow and really would rather see that at the stern as well.

    Moving back towards the cockpit, a standard feature that makes the new series identifiable from a distance is the retro, slightly-curved glass windshield with full side wing glass. I tested the braces by handing my weight across the walkthrough successfully and it held up.

    Glastron GLS 235 2009

    In the Cockpit

    The upholstery in the GLS Series is upmarket and well stitched. It looks nice and looks like it will hold up over time and use. I enjoyed the SuspensionAire adjustable seats with flip up bolster. They were very well molded to support you and after hours of riding around, I still didn’t have a back ache! The aft cockpit seating wraps around in a large U-shape with the port portion on a swivel so you can swing it around and convert it into a foot rest. Under the starboard side is a fully finished compartment with drain to keep extra food and drinks or more gear. Measuring the space, I found about 72” from gunwale to gunwale and the interior freeboard measured up to about 38”, far more than many runabouts.

    Wood-grain accents enhanced the looks around the cockpit including in front of the companion dash and around the instrumentation and wheel of the helm. A Sirius Satellite Ready AM/FM/CD stereo with four speakers is standard, but you might want to upgrade to the Premium Sound System with upgraded radio, transom speakers, bow and stern radio remotes, amplifier and subwoofer that will have the dock rocking.

    Glastron GLS 235 2009

    The full fiberglass liner has standard snap-in carpeting with a teak look and plush feel. The sole locker has a mat to protect your valuable skis and boards from rubbing on fiberglass, which is a very thoughtful addition. The locker is large enough to stow all your canvas when you take her out. Glastron knows today’s water sports often are more enjoyable with a tower, so they have every cockpit reinforced and ready for an Xtreme Wakeboard tower with board racks.

    At the Helm

    The builder did a good job providing adequate visibility for the driver and good ergonomics to make them comfortable at the wheel. Speed and a multi-function 5” gauge are set high in the dash while 2” gauges monitor the rest of the engine parameters. The depth finder gets shaded behind the wheel at some angles, so I would push it outboard and have some other less important gauge in its place. There is room to add a GPS in the center between the two 5” gauges. The upgraded throttle/shifter is at the perfect angle to keep my hand in place and take the strain off my forearm, so no armrest is necessary.

    Glastron GLS 235 2009

    The Stern and Engine

    The entire GLS Series has the same walkthrough transom system with a single cushion from the stern bench you remove, swing out seat back and flip up the starboard sunpad section. Lifting the sunpad up, my test model had a 300 hp Volvo Penta 5.7L Gi installed with adequate room to do daily checks and maintenance. Room to starboard can be used for wet life jackets and under the port side is where the water tank for a swim shower is mounted.

    The GLS 235 has a molded in integrated swim platform with concealed telescoping swim ladder. You can opt to add a swim shower which is part of an optional upgrade package that includes docking lights, transom tilt switch and engine hour meter.

    Glastron GLS 235 2009

    Specifications

    The GLS 235 measures 23’9” length overall with a beam of 8’6”, so she is still trailerable. She tips the scales at 4080 lbs. with standard engine and has a fuel capacity of 56 gallons. She has a draft of 17-½” with the outdrive trimmed all the way up, and 33” with it fully lowered. She is rated for 12 people. Glastron offers 17 – count ‘em folks! -- engine options from Volvo Penta and MerCruiser from a 250-hp sterndrive up to the 375-hp models.

    Glastron GLS 235 2009

    Test Results

    With 3 people on board and a ½ tank of fuel, I found the GLS 235 to be a smooth handling machine with decent visibility and ergonomics at the helm. Turns at 25 mph could be tight and were always easy to control. Time to plane averaged 3.8 seconds, while it took 8.6 seconds to reach 30 mph. She cruised comfortably at 26.8 mph at 3000 rpm burning 8.5 gph for a full tank range of 158 miles. I clocked her top speed at 47.4 mph which had her burning 21.2 gph.

    Glastron is raising the bar for what is standard and what you should expect in today’s bowriders at its price point. She has a base price of $42,997 which includes the 5.0L GXi Volvo Penta 270-hp stern drive engine and a custom EZ Loader 5200T trailer to take her to your favorite boating spots.

    Specifications

    Glastron GLS 235 (2009-10)
    Length Overall 23' 9''
    7.24 m
    Dry Weight 4,080 lbs.
    1,851 kg
    Beam 102''
    2.59 m
    Fuel Cap 56 gal.
    212 L
    Draft 33''
    .84 m
    Water Cap none
    Deadrise/Transom 21 deg. Bridge Clearance N/A
    Max Headroom open
    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.

    Line Drawing