Could be a very good reason to take it to Boscombe- We used to take the Nimrod there to weigh it. Very accurate it was too. Always an overnight to allow the fluids to drain for a weigh fist thing in the morning
Trying to draw a parallel: did Sentry spend long there?
Boscombe used to bring the mobile unit to us to do EMC and Tempest. Always a laugh seeing our Tefal men* with theirs.
*from the TV advert of the 80s era