Superlite 17B/Heliox 18B Testing
Abstract
The Navy Experimental Diving Unit evaluated the SL-17B/NS MOD O diving helmet, SL-17B/NS MOD 1 diving helmet, and DSI-18B/NS (ex Heliox 18B) diving mask for surface supplied air and mixed gas diving using a gas supply pressure of 135 pounds per square inch over bottom pressure. The evaluation, consisted of unmanned objective work of breathing testing, manned subjective evaluation, manned objective evaluation and system compatibility studies. The SL-17B/NS helmets and DSI-18B/NS mask proved to be extremely good diving systems. The SL-17B/NS MOD 1 was chosen for surface supplied diving while the SL-17B/NS MOD O and DSI-18B/NS were chosen for saturation diving. Under most conditions of operation, there was no substantial difference in performance between the two SL-17B/NS helmets. The fit of the head cushion/liner, oral nasal and neck dam were identified as critical components in ensuring proper operation and comfort. Recommendations were made concerning issue and procurement of these items. Although the safety locking pin for the SL-17B/NS is adequate it was recommended that the manufacturer be encouraged to develop an alternative method. The Kinergetics breathing Gas Heater, model 3352 was identified as inadequate due to its gas pressure limit and recommended for replacement.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1988
- Accession Number
- ADA206349
Entities
People
- David G. Kirby
Organizations
- United States Navy Experimental Diving Unit