Licensed Yacht BrokersSales and service of yachts and shipsBuilt by WILLIAMS JET TENDERS, theSportJet 520is a performance-focusedmotor tenderfor owners and captains ofmotor yachts, featuring afiberglass and plastic constructionhull, an inboard Rotax powerplant, and 45-knot pace. Available through Shestakov Yacht Sales with dedicated guidance from broker Andrey Shestakov.
Selecting a SportJet 520
- Choose the SportJet 520if you need a compact tender footprint (LOA 17 ft, beam 6 ft) that’s easy to manage aboard largermotor yachts.
- You value swift ship-to-shore runs, with both cruise and maximum speeds listed at 45 kn (51.78 mph).
- You prefer a single inboard Rotax engine running on gas/petrol for straightforward propulsion.
- You want the resilience of a fiberglass and plastic hullwith a fiberglass deck.
- You seek a proven motor tenderbacked by Shestakov Yacht Sales and the hands-on expertise of broker Andrey Shestakov.
Features of the Model
- Performance-oriented tender by WILLIAMS JET TENDERSdelivering a stated 45 kn cruise and top speed (51.78 mph).
- Powertrain: 1x Rotax, Inboard, Gas/Petrol.
- Construction: fiberglass and plastichull with fiberglass deck.
- Dimensions optimized for tender duties: 17 ft (5.21 m) LOA, 6 ft (2.01 m) beam.
- Fuel capacity of 26 gal supports frequent short hops and guest transfers.
- Designers: hull and interior designers are not specified.
Technical Specifications
- Model: SportJet 520
- Builder: WILLIAMS JET TENDERS
- Category: motor yachts/motor tender
- Hull category: fiberglass and plastic
- Length overall (LOA): 17 ft (5.21 m)
- Beam: 6 ft (2.01 m)
- Draft max: 4.648 ft (1.4166 m)
- Speed (cruise): 45 kn (51.78 mph)
- Speed (max): 45 kn (51.78 mph)
- Engines: 1x Rotax; Inboard; Gas/Petrol
- Fuel capacity: 26 gal
- Hull material: fiberglass and plastic
- Deck material: Fiberglass
- Hull designer: -
- Interior designer: -
Pricing and Ordering
For current pricing, delivery timing, and build slot availability for the SportJet 520, contact broker Andrey Shestakov at Shestakov Yacht Sales. Our team will guide you through specifications, equipment selection, and logistics for a seamless purchase of yourmotor tenderserving largermotor yachts.
Questions and Answers
Q: What is the top speed of the SportJet 520? A: The listedtop speedis 45 kn (51.78 mph), identical to the statedcruise speed.
Q: Who builds the SportJet 520? A: It is built byWILLIAMS JET TENDERS, a specialist in high-performancetenders.
Q: What powers this model? A: One Rotaxinboardengine usinggas/petrolfuels theSportJet 520.
Q: What are the key dimensions? A: LOA is 17 ft (5.21 m), beamis 6 ft (2.01 m), and maximumdraftis 4.648 ft (1.4166 m).
Q: What is the hull and deck construction? A: The hull is in the fiberglass and plasticcategory, and thedeckisfiberglass. For ordering and details, contact Andrey Shestakov at Shestakov Yacht Sales.
Owner Experience Review
As a superyacht tender, the SportJet 520fromWILLIAMS JET TENDERSshows up frequently on 30m+ motherships, and owners also press it into service as a family dayboat for island-hopping and towing. Launched in 2015 and refreshed through the 2020s, it has earned praise for a hull that runs unerringly flat and fast, staying remarkably forgiving in hard turns and resisting sliding or hooking when pushed. The jet installation delivers punchy acceleration and throws very little wake, which makes ski and tube sessions straightforward.
On board, the layout is unapologetically social: seating for 6–7 adults, a sunpad and rear-facing transom seat, plus multiple under-seat lockers and a full-width bathing platform, with fit and finish that suit day use. Maintenance expectations are realistic for a jet: the modern SportJet 520uses a BRP Rotax 1630 ACE (230 hp) and provides an engine-flushing point and service access per the owner’s manual, but jet drives remain sensitive to ingesting weeds, sticks, or rocks—impeller and wear-ring damage are common consequences, and some owners report frustrating downtime. Older SportJet-era installations have also seen time-consuming engine/drive work, while current models add iDF (intelligent Debris Free) to help clear inlet debris remotely; prudent route choices and post-run checks still pay dividends.
Pros and Cons
- Hull runs flat and fast, remaining forgiving and resisting slide or hook even in hard turns.
- Quick-accelerating jet drive with very little wake, well suited to towing and watersports.
- Social dayboat layout seats 6–7 with a sunpad, rear-facing transom seat, ample lockers, and a full-width bathing platform.
- Jet drive is sensitive to debris ingestion, with impeller and wear-ring damage a known risk if weeds, sticks, or rocks are sucked in.
- Some owners report recurring faults and downtime that interrupt trips.
- Despite iDF and an engine-flushing point, diligent Rotax service intervals and careful operation are essential, and older installations can require time-consuming engine/drive repairs.
Comparison with Other Models
| Model | LOA | Beam | Draft | Speed (Cruising/Max) | Gross Tonnage |
|---|---|---|---|---|---|
| EvoJet 70 | 23' 0" (7.09 m) | 8' 0" (2.59 m) | - | 35 kn | - |
| 505 Diesel Jet | 16' 0" (5 m) | 6' 0" (2.01 m) | - | 40 kn | - |
| Williams Jet Tenders | 12' 0" (3.82 m) | 5' 0" (1.76 m) | - | - | - |
| Turbojet 325 | 10' 0" (3.05 m) | 5' 0" (1.70 m) | 4' 11" (1.50 m) | - | - |
| 435 | 14' 0" (4.34 m) | 6' 0" (1.93 m) | - | 40 kn / 50 kn | - |
| 385 Turbojet | 13' 0" (3.96 m) | 5' 0" (1.75 m) | - | - | - |
| 435 Jetender | 14' 0" (4.35 m) | 6' 0" (1.94 m) | - | 35 kn / 45 kn | - |
| SportJet 520 | 17' 0" (5.21 m) | 6' 0" (2.01 m) | 4' 8" (1.42 m) | 45 kn / 45 kn | - |
Learn more on the “WILLIAMS JET TENDERS - SportJet 520”
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