The four phases, and which one eats the clock
Field hospital setup has four distinct phases. First, unload and layout: the packed unit is positioned, unrolled and oriented — heavy physical work that ground conditions control. Second, inflation: the blower runs and the shell rises into shape; this is the phase inflatable construction was invented to compress, and it is short. Third, anchoring and connection: guy lines, ground anchors, airlocks and utility hook-ups. Fourth, fit-out: flooring, wiring, lighting, HVAC, partitions, plumbing where applicable, beds and equipment. In real operations the fourth phase routinely takes longer than the first three combined — a shell standing is not a hospital. When a supplier quotes a setup time, the first question is which of these phases the number covers.
What moves the time up or down
Crew training is the largest variable: a drilled team that has deployed the same unit before works to a rhythm that first-timers cannot match, which is why procurement programs include deployment exercises. Ground conditions come next — level, cleared ground versus mud, snow or rubble changes both layout and anchoring time. Power availability decides whether inflation starts immediately or waits on generator setup. Weather adds time at every phase: wind slows layout and anchoring, rain slows everything. And unit size scales all of it. A quoted deployment time without stated crew size, ground assumption and weather condition is a number without a duty cycle — treat it as such.
Inflatable versus frame construction on deployment day
Frame-based field hospitals assemble pole by pole: more personnel-hours, more manual handling at height, and a longer critical path before the shell closes — but no dependence on blowers or power for the structure itself. Inflatable construction inverts this: fewer people, no work at height, the structure self-erects under air pressure, and large covered volumes appear quickly — at the cost of needing power on site early and monitoring pressure in service. For very long unattended deployments where power reliability is doubtful, or where spans beyond practical inflatable chamber sizes are needed, frame systems are the better tool. For rapid response where the first hours matter and staffing is thin, inflatable wins the deployment day. Losberger De Boer and other established suppliers offer both architectures for a reason — the duty cycle chooses.
What to ask before believing a setup-time claim
Ask five questions of any supplier, us included. How many trained crew does the quoted time assume? Does it end at 'shell standing' or at 'operational', and what fit-out scope sits between the two? What ground and weather conditions does it assume? Is the figure from a documented trial or from a brochure — and can the trial record be shown? Finally, does the quote include crew training, since training is what makes the number repeatable? Our own position: we publish no deployment minutes, working pressures or load ratings until third-party or documented trial files exist to support them. A checkable number next week beats an impressive number today.