The situation is looking grimmer for all potential purchasers of the F-35, not just the RCAF:
The F-35 Joint Strike Fighter, the supposed backbone of the Pentagon’s future air arsenal, could need additional years of work and billions of dollars in unplanned fixes, the Air Force and the Government Accountability Office revealed on Tuesday. Congressional testimony by Air Force and Navy leaders, plus a new report by the GAO, heaped bad news on a program that was already almost a decade late, hundreds of billions of dollars over its original budget and vexed by mismanagement, safety woes and rigged test results.
At an estimated $1 trillion to develop, purchase and support through 2050, the Lockheed Martin-built F-35 was already the most expensive conventional weapons program ever even before Tuesday’s bulletins. The Air Force, Navy and Marine Corps are counting on buying as many as 2,500 F-35s to replace almost every tactical jet in their current inventories. More than a dozen foreign countries are lined up to acquire the stealthy, single-engine fighter, as well.
[. . .]
If cuts do occur, the U.S. will be in good company. Australia, Canada and Japan have already begun backing away from the troubled JSF as the new plane has gradually exceeded their budgets. For these countries, alternatives include the Super Hornet and an upgraded F-15 from Boeing, Lockheed’s new F-16V and the European Typhoon, Rafale and Gripen fighters. But so far the U.S. military prefers the F-35, even if the stealthy jet is more than a decade late, twice as expensive as originally projected and available in fewer numbers. “We will remain committed to the long-term success of the F-35 program,” Air Combat Command asserted.
Update, 23 March: The summary of the GAO report with a link to the PDF version for download.