The Navy proposes replacing long all-in-one availabilities with smaller, more frequent maintenance periods. The intended benefit is more operational days between shorter interruptions. Repeatedly skipping an upgrade to return a ship to operations could instead leave ships with incompatible air-defense, anti-submarine, or electronic fits. The Royal Navy's Type 23 and Type 45 experience is used to illustrate the effects of deferred refits and transferring parts between ships. A larger fleet offers more room to manage those pressures, but only if refit commitments survive repeated demands for another deployable hull.
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Shorter maintenance periods can improve readiness or fragment the fleet
The proposed maintenance continuum promises more operational days but risks deferred upgrades and uneven ship fits when deployment demands interrupt refits.