Silent Submersion
The Topgun was described as a fully closed-circuit, manually controlled mixed-gas rebreather. Three development units were dived extensively from Sydney wrecks to North Florida caves and the Andrea Doria.
The period page offered the unit by application to suitably experienced divers and listed trimix diving experience as a minimum prerequisite.
First female to dive the Andrea Doria on a rebreather - Topgun.
Suzanne Dudas
Topgun on the Andrea Doria. Photograph credited by Silent Submersion to Greg Mossfeldt.
| Duration | 5-8 hours |
| Recommended maximum depth | 400 ft |
| Cylinders | User configurable; accepted up to two 20 litre tanks |
| Oxygen addition | Manual |
| Integrated decompression computer | No |
| Gas switching | Built in |
| Redundancy | Open-circuit bailout; manual semi-closed bailout loop was available |
| PO2 display | Three LCD voltmeters |
| PO2 sensors | Three Teledyne R22 sensors |
| Mouthpiece | Closed-circuit, with Interspiro check valves |
| Gas connections | Standard scuba low-pressure inflator hoses |
| Automatic diluent addition | No |
Reconstructed linked page, not an original AARG page. Based on the 18 October 2000 Wayback capture of Silent Submersion's Topgun page. Images retain their source credits and copyright.
Back to the AARG Topgun page