The VC-25B program took a $318 million write-off in the first quarter of 2021 because of supplier challenges related to the spread of the novel coronavirus, according to Boeing.

After a blistering congressional hearing, Aviation Week editors break down some of the F-35 program’s recent struggles and cost issues to develop the program and maintain and operate the fighter.

The cost to develop, sustain and operate the multibillion-dollar F-35 fighter is mounting, and senior House Democrats are pushing back.