https://taskandpurpose.com/news/bonhomme-richard-fire-injuries"There was initially some confusion due to a loud explosion that rang out across the bay shortly after the fire began, but Sobeck said it was likely due to a backdraft from over-pressurization as the ship compartments heated up."
"At the time, the admiral said that the blaze was a Class A fire, meaning there were no toxic materials burning. Instead, it was an “ashy” fire, fueled by “normal things you’d find in a compartment” such as office equipment and clothing, he said."
