Japan has to pay more for F-15JSI because of the switch from DEWS to EPAWSS

Japan’s Defense Minister Nobuo Kishi has explained to a House of Councilors committee on Apr. 12 on why the cost of upgrading the F-15J had gone up.


Graphic: Boeing


Kishi says Japan has to spend more as the electronic warfare system that it choose for the upgrade faces parts shortages. Tokyo had wanted to buy 101 sets of the ALQ-239 Digital Electronic Warfare System (DEWS). It is now believe that they were told to switch to the new Eagle Passive Active Warning Survivability System (EPAWSS) instead.