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Available Lengths:
22', 23' & 24'Ultra Magnum Inboard Jet
Your Parents Always Said You Had Tremendous Upward Mobility.

Throttle one up. Now with a wider 7' bottom, redesigned gunwale, and available 6.0 liter supercharged V8, the new Ultra Magnum is the biggest, boldest, and baddest inboard jet ever! The Ultra Magnum's Hydro-Flow jet hull accelerates at a stunning rate, achieving planing speed in mere seconds. But it's hard to fathom how all that thrust and horsepower can be achieved with such smoothness and shear grace. The Ultra Magnum is supremely capable of navigating everything from intimidating whitewater rapids to extremely shallow riffles and wide open lakes. Its styling is unmistakable on the water, highway, and driveway. The craftsmanship is detailed to the point of absolute perfection. It's no wonder the Ultra Magnum is the flagship of the Duckworth line.
Standard Features Options & Accessories Image Gallery Performance Bulletin 2010 Model Guide

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Ultra Custom Features

The Ultra Magnum is ultra accepting of every conceivable accessory you could ever need or want. From rod holders, to sound systems, to navigational electronics, your Duckworth dealers offer endless options.

Ultra Quality

The combination of polished hardware, premium gauges, and mirror-smooth sides are true reflections of luxury and quality. The Ultra Magnum is the most distinctively poised craft wherever it goes, whether on water or land.

Distinctive Features

  • The ultimate inboard of all time!
  • New ultra-wide, Hydro-Flow, 7' bottom
  • Wider beam increases spaciousness
  • New wider gunwale increases functionality
  • Extreme whitewater capability
  • Optional full or partial hardtops available
  • Unmistakable style and luxury
  • Higher sides for more freeboard
  • 12° hull for shallow draft ability
  • Huge load-carrying capacity

Power

22' - 350 Marine Power carb V-8 & Hamilton 212 with Turbo Impeller
23'/24' - Marine Power 8.1 L GM V-8 & Hamilton 212 with Turbo Impeller
(Optional engines and jet pumps available.)

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Some photos show models with dealer added options. Personal Floatation Devices (PFDs) not always visible in photos.
Models, specifications, features, and options are subject to change without notice as Duckworth seeks product improvements.
Please check with your local full-service Duckworth dealer for the latest information about all of the features and options available for your Duckworth.
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