Aqua-Lung Navy Type DA #46681
Product Description
Introduction
The Aqua-Lung Navy Type DA Black Label is a landmark in diving history. Built by U.S. Divers / Aqua-Lung in 1955–56, it was crafted to naval specifications and served as a precursor to the famed DA Aqua-Master line.
Historical Context
In 1955, U.S. Divers began producing the Navy DA regulator to meet Bureau of Ships standards for military divers.
Its production run was short, making the Navy DA relatively rare in the vintage gear market.
When Aqua-Master arrived in 1958, many of its design elements had their roots in the Navy DA.
Design & Features
The Navy Type DA uses a two-stage, unbalanced upstream system.
It incorporates a Venturi assist, which helps airflow during inhalation.
Its second stage is less advanced than later Aqua-Master models, leading to somewhat heavier breathing under certain conditions.
The “Black Label” variant is one of the visual versions used to denote particular batches or versions of the regulator.
Performance & Operation
In operational use, the Navy DA delivered dependable air at moderate depths. Its performance is modest compared to later regulators but robust for its era. Users report it functions well at ambient pressure with basic breathing comfort.
Because of its early design, it does not excel in high-flow demand or deep dives compared to later twin-hose models.
Heritage & Collector Appeal
The Aqua-Lung Navy Type DA Black Label is a prized piece among vintage regulator collectors.
Its short-lived production, military pedigree, and role as a bridge to the Aqua-Master series make it highly desirable.
Collectors look for originality — such as original faceplates, hoses, and minimal aftermarket modifications. Many Navy DA regulators exist in various repaired or modified forms.
Specifications (Typical / Approximate)
| Specification | Detail |
|---|---|
| Manufacturer | U.S. Divers / Aqua-Lung (USA) |
| Model | Navy Type DA (Black Label variant) |
| Production Years | 1955–1956 |
| Configuration | Twin-hose, two-stage, unbalanced upstream |
| Venturi Assist | Yes |
| Materials | Chrome-plated metals, brass, rubber hoses |
| Label / Marking | “Black Label” version among label colors |
| Use | Military / Navy diving |
| Legacy | Precursor to DA Aqua-Master line |
Maintenance & Restoration Notes
Because of its age, restoring a Navy Type DA requires care. Many parts are no longer original or stock.
When restoring:
-
Replace hoses, diaphragms, O-rings with quality reproductions
-
Preserve or restore the original label / faceplate, especially the “Black Label” variant
-
Clean internal parts gently; avoid harsh solvents that damage stamped markings
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Test at low pressures before any dive use
Due to the rarity and collectible value, many owners restore these for display rather than active diving.
Summary
The Aqua-Lung Navy Type DA Black Label is a foundational regulator in the history of U.S. diving gear.
Though produced for a brief period, it influenced the later DA Aqua-Master series and remains a centerpiece for collectors.
With its military-spec build, early two-stage design, and iconic label variant, it embodies the spirit of 1950s diving innovation.
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