Estimate the direct cost, readiness impact and fleet-availability
loss caused by naval ship maintenance delays. Model lost ship-days,
shipyard and contractor extensions, crew and support costs,
schedule cascade exposure, replacement or mitigation spending,
return-to-service slippage and the economics of accelerating recovery.
Delay Cost
Shipyard, contractor, crew, logistics, rework
and schedule-extension cost
Fleet Availability
Convert maintenance overruns into lost ship-days,
availability points and average ships available
Recovery Economics
Advanced mode tests whether acceleration spending
is justified by days recovered
Fleet & Maintenance Delay
Use one representative maintenance event per affected
ship for a fast annual fleet-impact estimate.
ships
ships
days/ship
days/ship
days/ship
Optional fleet-wide non-mission downtime outside
this maintenance event.
ships
Cost of Each Delay Day
Enter daily cost per affected ship. Readiness value
is shown separately from direct cash cost.
$
/ship/day
$
/ship/day
$
/lost ship-day
$
/ship
Fleet & Maintenance Program
Model repeated availabilities across multiple affected
ships and compare planned fleet capacity with the delayed case.
ships
ships
events
days
days
days/year
ships
Daily Direct Delay Cost
Enter cost per affected ship per delay day.
$
/ship/day
$
/ship/day
$
/ship/day
$
/ship/day
$
/ship/day
$
/ship/day
Fixed, Schedule & Readiness Exposure
$
$
% delay days
$
/event/day
$
/lost ship-day
$
/lost ship-day
Recovery / Acceleration Scenario
Test an overtime, parallel-work, parts-expediting or
additional-workforce option. Recovery days are capped
at the entered delay.
days
$
Maintenance Delay & Availability Results
Simple fleet-delay estimate
Enter maintenance data
Enter fleet size, affected ships and maintenance delay
to calculate direct cost, readiness impact and lost naval
ship availability.
Total Delay Economic Impact
N/A
Direct delay cost plus modeled readiness /
opportunity value
Lost Available Ship-Days
N/A
Additional fleet unavailability created by the
maintenance overrun
Delay Cost Sensitivity
Delay length vs direct daily cost
Delay \ Daily Cost
-20%
Base
+20%
Maintenance-delay estimate ready:
guidance will appear after calculation.
Model approach:
planned fleet availability equals total fleet ship-days
less planned maintenance and other entered unavailable days.
Delay adds lost ship-days on top of the planned case.
Direct cost includes daily extension costs, fixed rework,
downstream schedule exposure and optional replacement /
mitigation spending. Readiness / opportunity value is
displayed separately and added only to total economic impact.
Advanced recovery economics compare the base delay with a
reduced-delay case plus acceleration spending.
Planning estimate only.
Naval maintenance delays can be driven by growth work,
emergent defects, material availability, engineering changes,
test failures, labor constraints, shipyard capacity, funding,
contracting and schedule integration. Readiness or opportunity
cost is not a standardized accounting value and should be
entered only when the user has a defensible internal planning
assumption. This tool is not an official government cost estimate,
maintenance plan, operational availability model or readiness assessment.
