2026 Comparator
4 marine autopilots compared on the criteria that matter on a sailboat: ecosystem integration, compatible ram, servo frequency, Wave mode (3D swell), polars. Workshop recommendation by program.
Raymarine
925 € HT
Pour qui : Coastal cruising 30-40 ft sailboats, Raymarine ecosystem
View RaymarineGarmin
699 € HT
Pour qui : Mixed sail + power cruising, sailboat ≤ 11 m
View Reactor 40B&G
1731 € HT
Pour qui : 40-50 ft sailboat, offshore cruising + IRC racing
View NAC-3B&G
2899 € HT
Pour qui : IRC racing, RORC, club America's Cup
View H50002026 distributor prices in France, calculator only (excl. ram, sensors, labor).
| Criteria | Raymarine Evolution | Garmin Reactor 40 | B&G NAC-3 | B&G H5000 |
|---|---|---|---|---|
| CPU price (excl. VAT) | ~ 1 900 € | ~ 1,579 USD | ~ 1,649 USD | ~ 2,899 USD |
| Périmètre (ce que comprend le prix) | Capteur/calculateur EVO seul (ACU + vérin séparés) | Calculateur seul (ECU + pompe séparés) | Calculateur seul (vérin + commande séparés) | CPU système H5000 (vérin séparé) |
| Response frequency | 5 Hz | 5 Hz | 10 Hz | 10 Hz |
| Wave Mode (3D swell) | No | Adaptive | Yes | Yes (refined) |
| Integrated polars | No | No | Limited | Yes (import ORC) |
| Compatible ram | Type 1/2/3 | GHP12 Type 1/2 | B&G T1/T2 | Sold separately |
| Native ecosystem | Axiom + EV-100 | GPSMAP + Reactor | H5000 + Zeus | H5000 full + WS720 |
| Target program | Coastal cruising | Mixed sail/power | Offshore comfort | IRC racing |
Coastal
The Garmin Reactor 40 Compact (€1,579 excl. VAT) or the Raymarine Evolution EV-100 cover coastal use without extra cost. Garmin has a slight edge for fishing, Raymarine for existing Axiom integration.
Total installed budget (actuator + computer + sensors): ~ €4,200-5,000 ex. VAT
View Reactor 40Offshore
The B&G NAC-3 + T1 hydraulic ram is our standard offshore workshop autopilot. Essential Wave mode in rough seas, H5000 / WS320 integration, flawless helm ↔ autopilot reversibility.
Total installed budget: ~ €6,500-8,000 ex. VAT
View NAC-3The manufacturer states a displacement of 7.5 t, so we select Type 1. Except the boat sails with water + fuel + crew + gear = 9.5 t. The Type 1 struggles, overheats, and slams. Always size for the actual sailing weight.
The Type 3 electromechanical unit costs ~ €1,000 less than the T2 hydraulic model. However, in rough seas at 25 knots, the electromechanical system saturates, the autopilot cuts out, and you’re steering manually 18 hours a day. The actual savings are negative.
Raymarine chartplotter + Garmin autopilot = no autopilot control from the Axiom, Garmin remote control required at the cockpit. Always choose an autopilot from the same brand as the main chartplotter (or Madintec which is compatible with all).
Ces 4 prix sont des calculateurs seuls (le cerveau). Un pilote opérationnel exige en plus un vérin / drive dimensionné sur le poids navigué (souvent le poste le plus cher), parfois une unité de puissance (ACU/ECU) et des capteurs. Comptez le système complet, pas seulement le calculateur — voir le catalogue pilotes & vérins.
4 questions to identify the autopilot suited to your sailboat and program.
Yes, via the MAD Controller Madintec interface. The Gyropilot 3 controls the B&G hydraulic T1/T2 ram without issue. This is the open flexibility of NKE.
Heavy. CPU + wind sensors + displays must be replaced. Allow 15–25 days of yard work + €8,000–12,000 ex. VAT for parts. Prefer migration between two winter seasons.
NKE Mode Wave has been the benchmark since 2010, fine-tuned over decades of IMOCA racing. B&G caught up in 2022 with its own algorithm. In practice, NKE retains a slight edge in rough tropical seas, while B&G excels in the English Channel/short-sea conditions.
Both systems accept ORC (Offshore Racing Congress) import in .pol format. Manual editing is recommended after each sail to fine-tune calibration (correcting real bias). NKE Toplink and B&G apps both save data by tack and conditions.
The autopilot draws 2-4 A continuously while cruising, 4-8 A in rough offshore racing. Over 14 days = 1,000-3,000 Ah cumulative. Allow for a minimum of 400 Ah usable capacity dedicated to the autopilot + house loads. See our lithium bank sizing article.
Skysat distributes Raymarine, Garmin, B&G/Navico, NKE Marine Electronics, and Madintec. Comparator based on 120+ autopilot installations from 2018–2026, cruising and racing. 2026 indicative distributor prices before tax.
