40 mm Bofors AA guns made in GB and US

[David_Hayward (RIP)]

Stellan, the trucks were assembled by Pearsons of Liverpool. I have been considering whether because of the importance of such weaponry manufacture that Waygood-Otis used their branch offices in Newcastle and Manchester rather than London, although for instance Delco-Remy & Hyatt Limited, GM subsidiary that produced wiring looms for tanks etc. only moved part of their production to 'safe' Dunstable in Bedfordshire and retained production at their London factory near Victoria station on the north bank of the River Thames throughout the war.

Do I take it that the Predictors mentioned were in the G/S trailers, and that in due course these were no longer required and so the F60B trucks reverted to SP units?