There have been a
lot of debate and speculation about the utility of Singapore having
an aircraft carrier. An aircraft carrier is not a new item in
the region with Thailand and India operating carriers. Australia
had previously operated carriers whilst China has announced its
intentions to operate one. On a smaller scale, Korea, Japan and
Australia have vessels capable of operating as semi-aircraft
carriers. Singapore routinely hosts US aircraft carriers with a
specialised dock in Changi.
There are several
impediments to anyone owning an aircraft carrier.
(a) Cost is perhaps
paramount. Carriers are expensive to build and operate. The 60k ton
QE CVs cost S$3.6b to build whilst the Wasp LHAs cost S$4.8b.
Thailand’s aircraft carrier ended up spending a lot of time in the
port due to budget constraints.
(b)
In comparison, land-based airports require less maintenance and can
be expanded, if land is available.
(c) An aircraft
carrier requires significant manpower to operate as well as
maintain.
(d) An aircraft
carrier requires expensive fleet escorts to defend against navel
threats eg submarines, enemy surface combatants and hostile
aircraft. Land-based airports do not sink.
But does the above
hold in the context of Singapore?
Firstly, the cost
required may not be so high.
(i)
Cost
Spain recently
launched the 27k ton Buque de Proyeccion
Estrategica (Strategic protection ship), a semi-aircraft
carrier/amphibious ship named Juan Carlos 1 which cost ~S$700+m to
build. The ship is capable of operating as many as 30 x F-35Bs and
was used as a base design for the Australian Canberras. There is a
large correlation between size and cost. The larger the carrier,
the greater the cost. A separate cost-benefit analysis would be
needed to determine how large a carrier would be efficient for
acquisition. The following factors may need to be
considered.
-
Construction industry base
Building an
aircraft carrier requires specialised technical skills eg layout
efficiency, deck temperature controls etc. However, Singapore
shipbuilding will not be starting from scratch, having constructed
the Endurance class. The greater the participation of the local
ship building industry, the greater the portion of the cost would
filter back to the local economy.
- Opportunity cost
savings:
The above is often
ignored. Basing aircraft on ships means less need to base aircraft
on land. Unlike other countries, Singapore’s land comes at a
significant premium (as anyone who stays in Singapore knows).
Basing aircraft on ships will allow affected airfields/airport to
be redeveloped. Surrounding lands around airfields will not suffer
height restrictions allowing greater development. Environment
impact issues such as noise reduction, safety from non-overflights
contribute to higher land values. There are also maintenance
savings as well as further cost savings eg less need for base
security eg dedicated air defence/field defence squadron thus
freeing up resources for reallocation. Existing airbase facilities,
units and equipment can be transferred to other airfields thus
increasing redundancy at other locations. Land values go up (and
sometimes very quickly). There will be increased population versus
space pressures.
There are negatives
to removing an airfield. This reduces runway redundancy and ships
may not be able to fully base all aircraft. This may require
re-basing into other airfields. Airbase support personnel/industry
will be affected. Like any major issue worth considering, tradeoffs
are needed. A detailed cost-benefit analysis of such impacts will
be required but nevertheless, this may yield significant cost
savings that may offset or even exceed the cost of acquiring
aircraft carriers.
-
Number
Singapore
operates 6-7 squadron of fighters over 3 main bases. This
means each base only operates 2-3 squadron of fighters. Based on
fleet status, only 40+ F-5s are due for replacement, hence the
amount of future fighters to be acquired would not be that many.
Whilst Singapore will definitely not rebase its entire air force,
the question is whether there is scope to redevelop at least
one.
It is also
interesting to note that F-35Bs have very short take-off capability
that enables it to utilise alternative airfields eg
seletar/sembawang that were previously restricted to other combat
aircraft due to the runway length. Alternatively, a separate base
can be built eg Tekong, Tuas, that can be smaller and cheaper or
even consider small floating runways that can be moved around. This
reduces the number of aircraft that needs to be based onboard
ships.
- Enhanced flight
training
Ship based flights
are less restricted in international waters. Pilot training and
operational flights can take place in international waters with
less restrictions. This reduces foreign concerns and cost (eg no
need to pay for foreign basing rights).
- Leveraging on
existing capability
Singapore has
assets eg Formidable FFGs that are capable for use eg as fleet
escort. Submarine escort is a major deficiency as SSKs often lack
the speed to keep up with surface combatants. In the case of fleets
such as italy, the lack of SSNs is offset by alternative measures
eg ASW helicopters and ASW equipped
escorts.
Space optimisation
is important for aircraft carriers. The more space, the more
aircraft carried and operated. In the case of semi-aircraft
carriers, a large part of space is often used for amphibious
support eg docking well rather than hanger space. The Endurance
class LSTs already fulfil the amphibious/humanitarian support role.
This allows a future alternative aircraft base to focus solely on
aircraft basing.
(ii)
Utility
Often, critics
point out that ships carry few aircraft and that large and thus
expensive aircraft carriers will be needed.
One of the greatest
counter examples was the Falklands war. 28 Sea Harriers
successfully defended a British fleet against 220 Argentine combat
aircraft enabling the UK to retain possession of a colony several
thousand miles away.
Whilst aircraft
carriers are often associated with force projection, in Singapore’s
case, the necessity would more likely be driven by the lack of
space rather than any desire for force projection since it has no
foreign interest to defend.
Tactically, it
would enhance Singapore’s security by not limiting itself to the
confines of its territorial waters thus increasing its potential
dimension of operations.
There are a lot
more factors to consider and detailed studies would be needed, if
not already done, to consider the possibility. But in conclusion,
whether Singapore will one day operate an aircraft carrier should
no longer be considered far-fetched and enter the realm of
objective analyses.