Impulse 1 Boat | 50' Knysna 2016
IMPULSE is a rare, special edition Knysna 500SE that bridges the gap between luxury cruising and sailing performance. She has been exclusively owner-operated, used only three months each summer since 2020, and kept in dry storage every winter.
Key Highlights:
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Upgraded Sail Plan: Featuring a high-performance square-top mainsail (New 2024) and an electric screecher furler for effortless, short-handed power.
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New 2024/2025 Rigging: Equipped with NorthSails Norlam Xi11/09 sails and a new Profurl NDE2 electric genoa furler (2025).
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Robust Energy Systems: 760Ah Mastervolt bank supported by dual high-output alternators and a 7kW Kohler generator for off-grid autonomy.
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Luxury "Owner Version" Layout: Three en-suite cabins with light wood craftsmanship and dual 16,000 BTU climate control units.
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Full Bluewater Kit: Includes a 100L/h water maker, Iridium-GO, and a 3.6m Infanta semi-rigid tender with a 20hp Mercury.
Turnkey and SA VAT paid, IMPULSE represents a unique opportunity to acquire a modern, highly-upgraded bluewater catamaran in exceptional mechanical condition.
DIMENSIONS & TANKAGE
- Length Overall: 15.24 m (50 ft)
- Beam: 7.96 m (26 ft)
- Max Draft: 1.21 m (4 ft)
- Air Draft: 19.82 m (65 ft)
- Displacement: 15.5 metric tons
- Fuel Capacity: 600 liters (158.5 GL)
- Fresh Water Capacity: 600 liters (158.5 GL)
- Black Water Capacity: 240 liters (3 x 80L tanks)
PROPULSION
- Engines: 2 x Yanmar 57hp 4JH57, Inboard Diesel
- Drive Type: Yanmar SD60 Sail Drives
ACCOMMODATIONS
- Layout: Owner Version
- Guest Cabins: 3
- Guest Heads: 3
- Interior: Light wood craftsmanship with custom soft furnishings
SAILS & RIGGING
- Main Sail: New (2024) NorthSails Norlam Xi11/09 square top with carbon battens
- Genoa: New (2024) NorthSails Norlam Xi11/09
- Code sail: screecher electric furler w/ Profurl NEX e4.0 (New 2023)
- Genoa Furler: New (2025) Profurl NDE2 C420 electric
- Additional Sails: Ullman Screecher and Ullman asymmetric spinnaker
- Winches: Harken 12v electric primary and secondary winches
NAVIGATION & ELECTRONICS
- Chart Plotter: Garmin 8015 with 15” XGA touchscreen display
- Radar: Garmin GMR 24HD
- Autopilot: Garmin GHP12 with GHC20 display
- AIS: Garmin AIS 600 send/receive
- VHF: Garmin VHF 200i
- Fish finder: Garmin GSD24
- Predictwind IRIDIUM-GO!
- TV: Samsung LED 40”
- Stereo: Fusion 750AV
- Electric anchor chain counter (New 2023)
ELECTRICAL
- Inverter/Charger: Mastervolt Mass Combi Pro 12/3000-150
- House Battery Bank: 2x Mastervolt 12/5000 units (760Ah total)
- Solar array (capacity to come)
- Generator: Kohler 7EFKOZD (7kW)
- Alternators: Dual Mastervolt 12/130 high-output alternators w/ Alpha Pro II regulators for rapid charging while underway.
GALLEY & AMENETIES
- Refrigeration: Isotherm CR200, 200L Combo fridge/freezer
- Freezer: Isotherm CRF90F, 90L
- Cockpit fridge: Weaco CU94/EVAP CIRC
- Ice Maker: U-Line SS98
- Hob: 4 burner AEG C6043G-M
- Oven: 65L, 4 funtion Eurogas FOG31IX
- Microwave: Samsung 28L
- Washing Machine: Samsung WA90H4200SW
- Water Maker: Schenker Modular 100, 100L/h (approx. 26.4G/H)
- Reverse cycle air conditioning/heater: 2 x Climma 16,000 BTU air conditioning units
TENDER
- Tender: 3.6m INFANTA Semi-rigid w/ center console (sold as additional equipment)
- 20hp Mercury ELPT 4-stroke engine
ADDITIONAL
- Windlass: Quick Alpha 1500w
- VAT/Permits: Fully SA VAT paid; current 18-month Greek cruising permit
Denison Yachting - Annapolis is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Just Catamarans.
Denison Yacht Sales offers the details of this yacht in good faith but can’t guarantee the
accuracy
of this information nor warrant the condition of this boat for sale. This yacht for sale is
offered
subject to prior sale, price change, or withdrawal from that yacht market without notice.
She is offered as a convenience by this yacht broker to its clients and is not intended to
convey
direct representation of a specific yacht
for sale.