Reply to post: Re: Trident

Blighty: We spent £1bn on Galileo and all we got was this lousy T-shirt

Anonymous Coward
Anonymous Coward

Re: Trident

>The Trident missiles don't use GPS since they spend their time underwater a lot and GPS signals don't penetrate seawater very well.

Very sassy. The official line is 'Trident does not require GPS' or 'GPS is assumed to be non-operational' - nonetheless almost all test flights used it and failures of the inertial guidance system are a matter of public record - eg the Trident Missile Testing Defence Parliamentary Committee session from 2015 which was published last year.

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