A Lewmar Low Profile hatch is built from seven main parts: the acrylic lid, a rubber seal, inside and outside handles, a friction hinge kit, joining inserts and screws, upper and lower anodized-aluminum frames, and a friction leveler. The Lewmar Low Profile Hatch is a deck hatch built around an anodized aluminum frame and a grey acrylic window. To choose a Raymarine autopilot, match an Evolution™ drive unit to your boat's fully loaded displacement and steering type, then complete the system with the EV-1 sensor core, an ACU (actuator control unit), and a p70s or p70Rs control head.
Autopilot Lewmar at a glance
| Product | Brand | Type |
|---|---|---|
| Profurl Top Down Furler - Spinex 1.5 - Boat Size: Up to 33 ft (10.1 m) | Profurl | Furling System |
| Profurl Furler - NEX 2.5 - For Continuous Line Code Zero - Boat Size: 39.0 - 46.0 ft (12.0 - 14.0 m) | Profurl | Furling System |
| Profurl Furler - R350 Racing Unit - Boat Size: Up to 37.0 ft (11.5 m) | Profurl | Furling System |
| Profurl Furler - C480 Cruising Unit - Boat Size: Up to 55.0 ft (17.0 m) | Profurl | Furling System |
| Profurl Top Down Furler - Spinex 6.5 - Boat Size: Up to 60 ft (18.3 m) | Profurl | Furling System |
| Profurl Top Down Furler - Spinex 0.9 - Boat Size: Up to 27 ft (8.2 m) | Profurl | Furling System |
What is a Raymarine Evolution autopilot?
Raymarine's Evolution series is a family of marine autopilots built around adaptive steering intelligence: the algorithms learn your boat's handling characteristics over time for accurate, efficient course-keeping without manual gain tuning. Evolution autopilots also integrate seamlessly with Axiom® chartplotters and NMEA 2000 networks, sharing heading data, tracking waypoints, and accepting control from compatible displays.
How do I install and calibrate a Raymarine autopilot?
A complete Raymarine Evolution autopilot typically includes four building blocks: EV-1 sensor core: detects pitch, roll, yaw, and heading changes. Raymarine Autopilot Backbone Cable Kit — the backbone cabling that networks the EV-1 sensor core, ACU, and control head together.
What are the most common mistakes when specifying an autopilot?
A common mistake is not matching an Evolution™ drive unit to your boat's fully loaded displacement and steering type. Raymarine Volvo Penta Engine Y-Loom Cable — interfaces an Evolution autopilot with Volvo Penta EVC drive-by-wire steering. Raymarine Volvo Engine 1m EVC Link Cable — a 1-meter link cable used when wiring an Evolution autopilot to Volvo EVC systems.
Which Lewmar hatch should I choose for my deck location?
Lewmar builds three main sailboat deck hatch families — Low Profile (25 mm lids), Medium Profile (32 mm lids), and the classic Ocean Hatch (9.53 mm acrylic) — and the right one depends on where it sits and how much strength you need. Almost every mono- and multi-hull sailboat carries hatches, and the Lewmar Low Profile is one of the most common designs on cruising and racing boats.
Which Lewmar Low Profile Hatch size do I need?
Lewmar sizes these hatches by a size number tied to fixed overall and cut-out dimensions. Lewmar Low Profile Hatch Size 10 — a compact grey-acrylic hatch with a silver anodized frame, sized for a 26 x 26 cm cut-out. Lewmar Low Profile Hatch Size 60 — a large deck hatch showing the anodized-aluminum frame that gives the range its 22 mm low profile.
Which Lewmar Medium Profile or Ocean Hatch should I choose?
Lewmar Medium Profile Hatch Size 60, Seal Kit — part of Lewmar's sealing system that makes acrylic replacement straightforward. When should I choose a Lewmar Ocean Hatch? Lewmar Ocean Hatch Size 60, Lid Assembly (Smoke) — the 9.53 mm acrylic lid built for rugged offshore service.
How do I size a Lewmar Low Profile Hatch?
The Lewmar Low Profile Hatch Size 40, Lid Assembly (MKII) — a replacement 25 mm lid for the smooth, snag-free Low Profile range. It also uses Lewmar's unique sealing system for easier acrylic replacement. Lewmar Low Profile Hatches are corrosion-resistant deck hatches with a sleek, low-rise anodized aluminum frame and grey acrylic lens, sized 0 through 60 for everything from small ventilation openings to foredeck hatches on small and mid-size yachts.
Which should you choose?
Lewmar Low Profile Hatch Size 60 (with Stay) — a larger foredeck-scale hatch supplied with a stay to hold the lid open. Designed with precision, these hinge caps ensure a secure fit, making them ideal for maintaining the longevity of your hatch system.
Frequently asked questions
What is a Raymarine Evolution autopilot?
A Raymarine Evolution autopilot is a family of marine autopilots built around adaptive steering intelligence that learns your boat's handling characteristics over time for accurate, efficient course-keeping without manual gain tuning.
How do I install and calibrate a Raymarine autopilot?
To install and calibrate a Raymarine Evolution autopilot, you need the EV-1 sensor core that detects pitch, roll, yaw, and heading changes, an ACU actuator control unit, and either a p70s or p70Rs control head. The Raymarine Autopilot Backbone Cable Kit networks these components together.
What are the most common mistakes when specifying an autopilot?
The most common mistake is not matching an Evolution™ drive unit to your boat's fully loaded displacement and steering type before completing the system with the EV-1 sensor core, ACU, and control head.
Which Lewmar hatch should I choose for my deck location?
Lewmar Low Profile Hatches are corrosion-resistant deck hatches with a sleek, low-rise anodized aluminum frame and grey acrylic lens, sized 0 through 60 for everything from small ventilation openings to foredeck hatches on small and mid-size yachts.
Which Lewmar Medium Profile or Ocean Hatch should I choose?
Lewmar builds three main sailboat deck hatch families — Low Profile (25 mm lids), Medium Profile (32 mm lids), and the classic Ocean Hatch (9.53 mm acrylic) — and the right one depends on where it sits and how much strength you need.
When should I choose a Lewmar Ocean Hatch?
You should choose a Lewmar Ocean Hatch for rugged offshore service, as demonstrated by the 9.53 mm acrylic lid built specifically for that demanding application.
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Last updated: October 02, 2026.