£M
8
7
6
5
4
3
2
1
COMMERCIAL IN CONFIDENCE
COMMERCI
100
200
300
400
40 knots
20 knots
e.
NOTE
DISPLACEMENT, TONNES
TON Class: displacement 423 tonnes/max speed 16 knots.
Through-Life Costs. The Study assumed a force of five conventional
mono-hulled replacement vessels would be required for a 25-year life
cycle. The following Through Life Costs relate to a medium speed
Patrol Craft with a complement equating to the present TON vessels and
with normal refit, maintenance and operating patterns:
(1) Procurement
-
£18M
(2) Operating costs.
-
£56M
-
£23M
NOTE:
(3) Maintenance
TOTAL (over Life Cycle) approx. £100 (at Sept 77 prices)
These figures relate to the craft costs only (weapon equipment
procurement/through life costs are not included).
f. Availability. The Study was not able to differentiate between
the availabilities of the various conventional Patrol Craft designs
submitted.
A general figure of craft available for patrol duty for
70% of the year was used for all craft evaluated.
C-4
COMMERCIAL IN CONFIDENCE