Republic of Singapore Air Force's (RSAF) F-16s, the warplane that forms the core of the air force's striking power, are due for a mid-life upgrade (MLU) that will improve the fighter's ability to sense-make, fly and fight, in all weather, day and night.
Fresh data from the United States indicates that the value of this proposed project, cited as US$2.43 billion or around S$3.09 billion (US$1: S$1.27), could make this the most ambitious warplane MLU ever led by Singapore's Ministry of Defence (MINDEF). The RSAF F-5 Tiger is the last fighter type upgraded by MINDEF and the Singapore Armed Forces (SAF), under Project M.
Scope of Singapore's F-16 upgrade
The F-16 upgrade is significant because defence electronics have advanced since Singapore ordered its first F-16C/Ds in the early 1990s. Fighters of that era are equipped with defence electronics whose computing power, processing speed, bandwidth and networking ability pale in comparison with today's state-of-the-art - imagine using a handphone or PC from that era and you get the picture.
So while the RSAF's F-16s can do the job today, it is imperative that the black boxes that form the brain and nerve centre of the fighter are brought up to date with a new radar that can detect threats from a greater distance and therefore allow the pilot to make best use of longer range precision weapons, all this while exchanging data with other SAF assets seamlessly and securely in real-time and with minimal human intervention, thus cutting down on the pilot's workload.
The MLU would keep the RSAF F-16 fleet fighting fit for years to come, allowing the air force to maximise the airframe hours left on the type even after nearly two decades of operations (F-16C/Ds entered service in phases, so the bulk of the fleet is well below 20 years old).
A wish-list of items said to be destined for the RSAF's F-16s, posted online yesterday by the United States Defense Security Cooperation Agency (DSCA), outlines the extensiveness of the MLU for RSAF current F-16 fleet, which is the most numerous fighter type in the RSAF order of battle.
The RSAF flies three types of single engine F-16s, the oldest of which were ordered 20 years ago. These are the single-seat F-16C, the twin-seat F-16D and twin-seat F-16D+, which are configured with additional electronics for self-protection against enemy missiles and conformal fuel tanks for extended range/loiter time.
RSAF units that fly the F-16 are:
* 140 Squadron (the RSAF's most established fighter squadron)
* 143 Squadron (it spearheaded the introduction of A-4 Super Skyhawks, in their day the RSAF's most numerous fighter type) and
* 145 Squadron (it flies the most extensively furnished Vipers, the F-16D+).
The DSCA, the US government agency that oversees arms sales to foreign nations, informed the American Congress on Monday of a "possible Foreign Military Sale to Singapore for an upgrade of F-16 Block 52 aircraft and associated equipment, parts, training and logistical support for an estimated cost of US$2.43 billion".
F-16 MLU wish-list
The list of items mentioned in the DSCA statement is likely to draw interest from defence buffs and Singapore watchers.
"The Government of Singapore has requested an upgrade of 60 F-16C/D/D+ aircraft. The upgrades will address reliability, supportability, and combat effectiveness concerns associated with its aging F-16 fleet.
The items being procured in this proposed sale include:
70 Active Electronically Scanned Array Radars (AESA)
70 LN-260 Embedded Global Positioning System/Inertial Navigation Systems (GPS/INS)
70 Joint Helmet Mounted Cueing Systems (JHMCS)
70 APX-125 Advanced Identification Friend or Foe (IFF) Combined Interrogator Transponders
3 AIM-9X Block II Captive Air Training Missiles
3 TGM-65G Maverick Missiles for testing and integration
4 GBU-50 Guided Bomb Units (GBU) for testing and integration
5 GBU-38 Joint Direct Attack Munitions for testing and integration
3 CBU-105 (D-4)/B Sensor Fused Weapons for testing and integration
1 AIS Interface Test Adapters for software updates
1 Classified Computer Program Identification Numbers (CPINs)
4 GBU-49 Enhanced Paveways for testing and integration
2 DSU-38 Laser Seekers for testing and integration
6 GBU-12 Paveway II, Guidance Control Units"
The RSAF is known to have some 500 different ways to equip its F-16s for combat missions.
From the look of things, the MLU is due to expand this repertoire even further should MINDEF/SAF adopt the US proposal to enable upgraded F-16s to carry CBU-105 Sensor Fused Weapons, which is a smart munition optimised to hunt and kill armoured targets like tanks and armoured rocket launchers.
RF-16 recce fighters
Senang Diri understands the RSAF F-16C/D/D+ fleet has been phased through progressive capability improvements in the past two decades.
This includes taking on the battlefield reconnaissance role after the RSAF stood down its fleet of RF-5S Tigereye recce fighters, which were modified locally with nose-mounted optical sensors. Recce F-16s are said to fly the role using pod-mounted sensors. These allow RSAF air warfare planners maximum flexibility to field the fighter type for a variety of missions over land or sea. More than just a sensor platform, RSAF F-16s configured for recce flights are said to be able to share what the warplane has captured much faster than the RF-5s which had to land and offload their imagery (let's just leave it at that).
The proposed MLU is timely as the black boxes on RSAF F-16s are of a vintage eclipsed by the current generation of computer software.
Potent air defences
In terms of flying ability, few would doubt that the F-16 continues to prove to be an agile and nimble fighter. The warplane's small profile and energy make the warplane a potent opponent in the air-to-air domain even without vectored thrust.
When complemented by the ability to shepherd our fighters to the right place, right altitude and right time using ground-controlled intercept, improved sense-making when linked to RSAF airborne early warning aircraft and air-to-air missiles that offer the pilot the ability to execute beyond visual range or off boresight engagements, the RSAF F-16's status as the mainstay of the RSAF's strike capability looks secure, with the proposed MLU extending the fighter's relevance for the coming years.
Add to this strength in numbers, with up to 60 RSAF F-16s on call during a national emergency, complemented by 24 F-15SGs and dwindling numbers of F-5S - when you're out of F-5s, you're out of fighters - as well as MINDEF/SAF interest in future manned platforms such as the Joint Strike Fighter as well as unmanned options and one can tell that the RSAF's Air Combat Command will have a busy and promising time well beyond WY 2014/15.
To the fighter mix, one must add multi-layered ground-based air defences operated by RSAF air defence squadrons, including but not limited to upgraded Improved HAWKs, Spyders, four types of MANPADS and the long-serving 35mm Oerlikon anti-aircraft artillery and other system fielded by RSAF 160 SQN :-)
Sea-based air defences, in the form of Aster batteries aboard Republic of Singapore Navy Formidable-class stealth frigates, can be expected to play their part in safeguarding the island nation's skies too.
Above all, a formidable combination for defending the Lion City against aerial threats.
See the RSAF Black Knights demonstrate what the F-16s can do in the air at the Singapore Airshow 2014.
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