The meaning of a 1:1 book to bill ratio
Don't forget that Bombardier has a CCC rating. Bizz jet buyers will owned thier planes for 25 years. VP's have to convince boards that the Bombardier plane is the better choice. It's clear that many sales were lost for that reason.
As individual, Will you buy an appliance from a maker with the worst rating?
A 1:1 ratio is strong achievement