JDAM: A GPS-INS Add-on Adds Accuracy to Airstrikes

Precision bombing has been a significant military goal since the invention of the Norden bomb sight in the 1920s, but its application remained elusive. Over 30 years later, in Vietnam, the destruction of a single target could require 300 bombs, which meant sending an appropriate number of fighters or bombers into harm’s way to deliver them. Even the 1991 Desert Storm war with Iraq featured unguided munitions for the most part. The USAF some laser and TV-guided weapons like Paveway bombs and Maverick missiles, but they were very expensive, and only effective in good weather. If precision bombing was finally to become a reality throughout the Air Force, a new approach would be needed. The Joint Direct Attack Munition (JDAM) became that alternative, an engine of military transformation that was also a model of procurement transformation.

DID’s FOCUS articles offer in-depth, updated looks at significant military programs of record. This DID FOCUS Article looks at the transformational history of the JDAM GPS-guided bomb program, the ongoing efforts to bring its capabilities up to and beyond the level of dual-mode guidance kits like Israel’s Spice and Raytheon’s Enhanced Paveway, and the contracts issued under the JDAM program since its inception.[updated]

Trident II D5 Missile: Keeping Up with Changing Times

Nuclear tipped missiles were first deployed on board US submarines at the height of the Cold War in the 1960s, to deter a Soviet first strike. The deterrence theorists argued that, unlike their land-based cousins, submarine-based nuclear weapons couldn’t be taken out by a surprise first strike, because the submarines were nearly impossible to locate and target. Which meant that Soviet leaders could not hope to destroy all of America’s nuclear weapons before they could be launched against Soviet territory. SLBM/FBM (Submarine Launched Ballistic Missile/ Fleet Ballistic Missile) offered shorter ranges and less accuracy than their land-based ICBM (Inter-Continental Ballistic Missile) counterparts, but the advent of Trident C4 missiles began extending those ranges, and offering other improvements. The C4s were succeeded by larger Trident II D5 missiles, which added precision accuracy and more payload.

The year that the Trident II D5 ballistic missile was first deployed, 1990, saw the beginning of the end of the missile’s primary mission. Even as the Soviet Union began to implode, the D5’s performance improvements were making the Trident submarine force the new backbone of the USA’s nuclear deterrent – and of Britain’s as well. To ensure that this capability was maintained at peak readiness and safety, the US Navy undertook a program in 2002 to replace aging components of the Trident II D5 missile called the D5 Life Extension (LE) Program. This article covers D5 LE, as well as support and production contracts associated with the American and British Trident missile fleets.

The USA’s DDG-1000 Zumwalt Class Program: Dead Aim, Or Dead End?

DID’s FOCUS Article for the DDG-1000 Zumwalt Class “destroyer” program covers the new ships’ capabilities and technologies, key controversies, associated contracts and costs, and related background resources.

The ship’s prime missions are to provide naval gunfire support, and next-generation air defense, in near-shore areas where other large ships hesitate to tread. There has even been talk of using it as an anchor for action groups of stealthy Littoral Combat Ships and submarines, owing to its design for very low radar, infrared, and acoustic signatures. The estimated 14,500t (battlecruiser size) Zumwalt Class will be fully multi-role, however, with undersea warfare, anti-ship, and long-range attack roles. That makes the DDG-1000 suitable for another role – as a “hidden ace card,” using its overall stealth to create uncertainty for enemy forces.

At over $3 billion per ship for construction alone, however, the program faced significant obstacles if it wanted to avoid fulfilling former Secretary of the Navy Donald Winter’s fears for the fleet. From the outset, DID has noted that the Zumwalt Class might face the same fate as the ultra-sophisticated, ultra-expensive SSN-21 Seawolf Class submarines. That appears to have come true, with news of the program’s truncation to just 3 ships. Meanwhile, production continues.

Morocco’s Air Force Reloads: And Now, The Training…

Morocco’s combat air force currently flies 2 squadrons of old F-5 fighters, and 2 squadrons of only slightly newer Mirage F1s. T-37 light jets serve as high-end trainers. Their neighbor and rival Algeria flies MiG-23s of similar vintage, but the Force Aérienne Algérienne also flies SU-24 Fencer and SU-25 Frogfoot strike aircraft, plus even more modern and capable MiG-29s, and is receiving multi-role SU-30MKAs as part of a multi-billion dollar weapons deal with Russia.

Morocco can’t beat that array. Instead, they’re looking for replacement aircraft and upgrades that will prevent complete overmatch, and provide a measure of security. Initially, they looked to France, but key reversals have handed most of this modernization work to the United States.

Missile Defense: Next Steps for the USA’s GMD

The USA’s Ground-Based Midcourse Defense (GMD) program uses land-based missiles to intercept incoming ballistic missiles in the middle of their flight, outside the atmosphere. The missiles are currently based at 2 sites in the USA: 4 at Vandenberg AFB in California, and 20 (eventually 26) at Fort Greely in Alaska.

The well-known Patriot missiles provide what’s known as terminal-phase defense options, while longer-reach options like the land-based THAAD perform terminal or descent-phase interceptions. Even so, their sensors and flight ranges are best suited to defense against shorter range missiles launched from in-theater.

In contrast, GMD is designed to defend against intercontinental ballistic missiles (ICBMs). It depends on tracking that begins in the boost phase, in order to allow true mid-course interception attempts in space, before descent or terminal phase options like THAAD and then Patriot would be tried. In order to accomplish that task, GMD missiles must use data feeds from an assortment of long-range sensors, including satellites like SBIRS and DSP, some SPSS/BMEWS huge early-warning radars, and even the naval SBX radar.

Australia’s Troubled E-7A “Wedgetail” AWACS Program

The island continent of Australia faces a number of unique security challenges that stem from its geography. The continent may be separated from its neighbors by large expanses of ocean, but it also resides within a potential arc of instability, and has a number of important offshore resource sites to protect. Full awareness of what is going on around them, and the ability to push that awareness well offshore, are critical security requirements.

“Project Wedgetail” had 3 finalists, and the winner was a new variant of Boeing’s 737-700, fitted with an MESA (multirole electronically scanned array) radar from Northrop Grumman. That radar exchanges the traditional AWACS rotating dome for the E-7A’s “top hat” stationary antenna. That design, and the project as a whole, have run into severe turbulence, creating problems for Boeing earnings, the ADF, and other export orders for the type. DID’s FOCUS articles offer in-depth, updated looks at significant military programs of record. This one covers contracts, events, and key milestones within Australia’s E-7A program, from inception to the current day.

$1.1B to Upgrade Turkish F-16 fleet

The Turkish and US governments signed a letter of offer and acceptance (LOA) on April 26/05 for the $1.1-billion modernization of 117 Turkish Air Force F-16s to a common avionics configuration. December 2006 saw a $635.1 million contract under that framework issued to Lockeed Martin.

The upgrade will create a common avionics configuration for the service’s fleet of F-16 Block 40 and 50 aircraft. More than 200 F-16 aircraft make up the backbone of Turkey’s current fighter fleet. Systems to be integrated on Turkey’s upgraded F-16s include:

Lockheed & Mitsubishi’s F-2 Fighter may be replaced with ATD-X (X-2)

Japan already produces F-15J Eagle aircraft under license from Boeing, and in 1987 they selected Lockheed Martin F-16 fighter jet as the basis for a “local” design that would replace its 1970s era F-1s. The aim was to produce a less expensive fighter that would complement its F-15s, provide a bridge for key aerospace technology transfers, and give Japan’s aerospace industry experience with cutting-edge manufacturing and component technologies.

The F-2’s increased range is very useful to Japan, given their need to cover large land and maritime areas. Nevertheless, a combination of design decisions and meddling from Washington ensured that these fighters ended up costing almost as much as a twin-engine F-15J Eagle, without delivering the same performance. As a result, production ended early, and the 2011 tsunami made Japan’s fleet even smaller. The remaining fleet will continue to receive upgrades, in order to keep them combat capable for many years to come.

AMDR: Raytheon Wins Dual-Band Radar, Pending Protest

The US Navy’s Dual-Band Radar that equips its forthcoming Gerald R. Ford class super-carriers replaces several different radars with a single back-end. Merging Raytheon’s X-band SPY-3 with Lockheed Martin’s S-band VSR allows fewer radar antennas, faster response time, faster adaptation to new situations, one-step upgrades to the radar suite as a whole, and better utilization of the ship’s power, electronics, and bandwidth.

Rather than using that existing Dual-Band Radar design in new surface combatant ships, however, the “Air and Missile Defense Radar” (AMDR) aims to fulfill DG-51 Flight III destroyer needs through a new competition for a similar dual-band radar. It could end up being a big deal for the winning radar manufacturer, and for the fleet. If, and only if, the technical, power, and weight challenges can be mastered at an affordable price.

Singapore’s Steps: Modernizing the RSAF’s F-16 Fleet

In September 2013, Singapore confirmed its much-anticipated intent to upgrade its F-16C/Ds with improved radars and other changes. By January 2014, that was a published DSCA request. There’s no firm timeline just yet, but the proposal is part of wider-ranging military improvements underway in Singapore. It’s also seen as an early example to many other F-16 operators around the world, who respect Singapore’s as a discerning buyer and may wish to do the same thing.

That decision is expected to launch at least 2 fierce competitions. One will be between Lockheed Martin and BAE Systems. The other will be between Raytheon and Northrop Grumman.