NHT Monday 15th April,
Today at 10:00Z (11:00 LT) a flight of 5 Apaches overflew here at low level having departed Wattisham an hour previously. This formation was due to depart UK airspace en route to Estonia.
The one 'pinging' on ADS-B was ZJ179 from this formation.
These should have passed through/landed in Belgium or the Netherlands after departing UK airspace.
These Apaches (from 663 Sqn) will be in Estonia for three months. See here,
https://ukdefencejournal.org.uk/british ... o-estonia/
The runway here is now closed, so expect only helicopter visitors for the next 6 months or so.