Fleet profile

Helios III

Delta Marine 50.00 m 2012 United States Unknown ★ 1 Star Superyacht Guide Award

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

Helios III - Delta Marine official image

Primary image

Helios III, built by Delta Marine.

Credit: Image source: Delta Marine official website.

Overview

Builder Delta Marine
TypeDisplacement
StatusUnknown
CountryUnited States
Build dateJan. 1, 2012
Launch dateJan. 1, 2012

Specifications

Length50.00 m
Beam10.40 m
Draught2.90 m
ConstructionComposite
Machinery

2 x CAT 3512B, 1650 BHp @ 1600 rpm

Accommodation

Design