> If every vehicle is patched and it is part of normal manufacturing, then you could say that none of them are patched. This is only true if they are all patch

> If every vehicle is patched and it is part of normal manufacturing, then you could say that none of them are patched. This is only true if they are all patched in exactly the same way and if you patch existing examples in the field. In the real world patches are applied as repairs to incidents that are unique to each example. Airliners are too expensive to throw away because of minor flaws and damage.