Field notes
Build Journal
Yard-side briefings on specifying, costing and commissioning new-build vessels for Raja Ampat and West Papua waters.
- Scope
- New-build projects only
- Contracts
- PT Komodo Galangan Nusantara
- Quotations
- USD
- Delivery
- Sorong / Waisai, West Papua
Sacrificial Keels and Keel Protection for Reef Boats
A sacrificial keel is a replaceable wear strip — typically a bolted or welded shoe of thicker aluminium, HDPE, or hardwood — fitted along the hull’s centreline so that coral groundings, beach landings, and… Read the note →
How Deadrise Affects Comfort and Shallow Draft
Deadrise — the angle of the hull bottom measured from horizontal — is the single number that most directly trades ride comfort against shallow draft. More deadrise (20–24 degrees at the transom) slices through chop… Read the note →
Corrosion Protection for Aluminium Boats in West Papua
Corrosion protection for aluminium boats in West Papua rests on five controls: correct alloy selection (5083/5086 hull plate), strict isolation of dissimilar metals at every fitting, properly sized and maintained sacrificial anodes, clean shore-power… Read the note →
Hull Material Choice for Coral Reef Operations
For coral reef operations, hull material choice comes down to three questions: how often will the hull touch something hard, how far are you from repair facilities, and what can your crew maintain. Marine-grade… Read the note →
Camera-Friendly Tender Decks: Rinse Tanks, Padding, Power
A camera-friendly dive tender deck needs four things the standard layout lacks: a dedicated rinse tank of at least 80–100 litres with fresh water plumbed or jugged for the day, a padded camera table… Read the note →
Open vs Cabin Dive Tenders for Tropical Operations
For tropical dive operations, an open tender with a well-designed hardtop beats a cabin tender in most day-boat roles: it is lighter, cooler in still air, faster to load, and less costly to build… Read the note →
Best Tender Size for 8-12 Divers: A Working Comparison
For 8–12 divers, the working answer is a 9–10 m dive tender: long enough to carry roughly 1.2–1.4 tonnes of divers and gear with proper freeboard, short enough to stay manageable at reef moorings and affordable… Read the note →
Dive Tender Deck Layout: Entry, Exit and Tank Racks
A dive tender deck layout for remote areas like Raja Ampat works when three flows never cross: divers moving aft to enter the water, divers climbing back aboard, and crew handling cylinders. The proven… Read the note →