Here are excerpts of a somewhat skeptical analysis (with some interesting pictures) from thedrive.com:
The U.K.'s New 'Tempest' Stealth Fighter Project Already Faces Serious Challenges
The country is eager to remain competitive militarily and economically, but it's not clear if they can afford their own advanced fighter jet.
BY JOSEPH TREVITHICK
JULY 16, 2018
The U.K. Ministry of Defense has unveiled new plans for a new stealth fighter jet called Tempest at the biennial Farnborough Airshow. The announcement coincides with the release of a new Combat Air Strategy, which focuses heavily on sustaining and expanding the United Kingdom’s domestic defense industrial base and international cooperation in that sector, but there are already questions about the project’s viability given the country’s increasingly uncertain political and economic future.
Underscoring the emphasis on engagement with the private sector, U.K. Defense Secretary Gavin Williamson offered details about Tempest and the country’s new aerial warfare strategy in front of a full-size notional mockup of the jet at BAE’s booth at Farnborough on July 16, 2018. The U.K.-headquartered firm will lead “Team Tempest,” which also includes engine-maker Rolls-Royce, Italian defense contractor Leonardo, and the European missile consortium MBDA.
“We have been a world leader in the combat air sector for a century, with an enviable array of skills and technology, and this Strategy makes clear that we are determined to make sure it stays that way,” Williamson said. “British defense industry is a huge contributor to U.K. prosperity, creating thousands of jobs in a thriving advanced manufacturing sector, and generating a U.K. sovereign capability that is the best in the world.”
Though Tempest’s design isn’t anywhere close to firm, slides Team Tempest showed at the event described a number of increasingly common basic requirements for an advanced fighter jet design. Though described as a sixth-generation design, what BAE Systems and its partners have shown so far looks very much like what many countries are looking at for new fifth-generation types. The mockup and concept art show a stealthy, modified delta-wing planform with a pair of vertical small, outwardly-canted vertical stabilizers.
It’s not the first time the United Kingdom has attempted to develop its own advanced fighter jet, either. In the 1990s, the Royal Air Force launched the Future Offensive Air System (FOAS) program, which eventually led to the BAE Replica fighter jet concept.
That aircraft, which Tempest appears to borrow from in many ways, never flew and FOAS came to halt in 2005. The country decided instead to purchase the F-35.
In 2012, the United Kingdom and France embarked on what they called the Future Air Combat System (FCAS) project, which focused on developing stealthy unmanned combat air vehicles. Airbus has since used FCAS to describe a Franco-German stealth fighter program that also includes a number of similar requirements to the Tempest program, including supporting loyal wingman-style manned-unmanned teams.
That aircraft, which Tempest appears to borrow from in many ways, never flew and FOAS came to halt in 2005. The country decided instead to purchase the F-35.
In 2012, the United Kingdom and France embarked on what they called the Future Air Combat System (FCAS) project, which focused on developing stealthy unmanned combat air vehicles. Airbus has since used FCAS to describe a Franco-German stealth fighter program that also includes a number of similar requirements to the Tempest program, including supporting loyal wingman-style manned-unmanned teams.
Regardless, the U.K. government is clearly hoping to leverage these efforts for its own use to both speed up development and find ways to share burdens and otherwise lower costs. By their very nature, stealth fighter programs have proven to be very time-consuming and costly endeavors.
On top of that, despite the prominent Union Jack in the Team Tempest logo, it’s hard to deny that the program already has a distinctly pan-European flavor given the involvement of Leonardo and MDBA. Also, prior to the announcement, the Ministry of Defense had reportedly been in talks with Swedish officials about a shared stealth fighter effort. BAE Systems is already working together with Turkey’s TAI on its TFX program and could join Japan's future stealth fighter project, as well.
The immediate problem, of course, is whether the United Kingdom will be able to position itself as a viable partner, let alone leader in such a program given its present political and economic turmoil. This is almost entirely a result of plans to leave the European Union, also known as the British Exit or Brexit. The U.K. government is struggling to firm up its own negotiating position ahead of attempting to begin talks with E.U. officials on a deal to disentangle themselves from the organization.
If and when the United Kingdom succeeds in extricating itself from the regional bloc, it will immediately throw up barriers to direct industrial cooperation with European defense contractors. It will almost certainly make existing multi-national partnerships, such as MBDA and the Eurofighter consortium that produces the Typhoon fourth generation fighter jet, more complicated.
With a demonstrator aircraft not even scheduled to take to the sky for more than six years, there is a distinct chance that the political and economic environment in the United Kingdom will have changed substantially before the Tempest project even gets going. Prime Minister Teresa May’s government has suffered a number of important resignations just in July 2018, including that of now former Foreign Minister Boris Johnson, and it is unclear how long she may last in that post.
With all this in mind, the Ministry of Defense will have to work hard if it wants to move Tempest ahead at all, let alone keep to its stated timetable. Otherwise, it’s very possible that the program could end up being a repeat of FOAS and the Replica.