That's the word from defence sources with intimate knowledge of the troubled program.
The federal government has refused to accept four test helicopters, currently parked at the Canadian Forces facility in
But more troubling technical concerns have emerged, and sources say there's concern that delicate flight systems, including a computer that runs the engines, are not sufficiently shielded against powerful electromagnetic waves, such as those produced by military-grade radar on frigates.
The interference has the potential of blanking out the digital instruments and possibly shutting down the engines.
Both Sikorsky and
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