| Pressure | TBD |
| Suit mass (1g) | TBD |
| Life support (primary) | Not publicly documented |
| Life support (backup) | — |
| EVA duration | N/A |
| Program | Pre-Mercury R&D |
| Agency | US Navy |
| Manufacturer | B.F. Goodrich |
| First use | 1959 |
| Status | Experimental — basis for Mercury suit |
| Donning / entry | Not publicly documented |
Direct architectural basis for the Mercury IVA suit
Naval high-altitude pressure suit; direct Mercury IVA precursor
Not publicly documented
"The most direct production line from naval aviation pressure suits to spaceflight hardware"
This is the suit Mercury IVA was directly based on — critical lineage entry
"Established B.F. Goodrich as the lead US full-pressure suit contractor before Mercury existed"
"Parallel development track alongside Model O testing different mobility solutions"
"Naval and NASA pressure suit research tracks cross-pollinated significantly in this era"
