Superyacht Guide Award
Superyacht Guide Yacht Star
★☆☆☆☆
1 Star - Listed with recognised merit
Listed with recognised merit as an official Delta Marine build. Rating is an editorial directory marker only and not a technical certification.
Official builder source checked
Last reviewed: May 14, 2026
Superyacht Guide Awards are editorial ratings based on available information and review criteria.
Helios III is a 50.00 metre displacement motor yacht built by Delta Marine and delivered in 2012. Originally delivered as Arianna, she is listed here under her current or commonly used name, Helios III.
Her official Delta Marine specifications list a beam of 10.40 metres and a draught of 2.90 metres. The yacht is built in composite construction and is powered by two Caterpillar 3512B engines rated at 1,650 bhp at 1,600 rpm.
This profile is based on Delta Marine's official yacht information and is intended as a concise public reference for the Superyacht Guide fleet database.
Gallery
Primary image
Helios III, built by Delta Marine.
Credit: Image source: Delta Marine official website.
Overview
| Builder | Delta Marine |
|---|---|
| Type | Displacement |
| Status | Unknown |
| Country | United States |
| Build date | Jan. 1, 2012 |
| Launch date | Jan. 1, 2012 |
Specifications
| Length | 50.00 m |
|---|---|
| Beam | 10.40 m |
| Draught | 2.90 m |
| Construction | Composite |
| Machinery | 2 x CAT 3512B, 1650 BHp @ 1600 rpm |