The Blackburn G.P was an attempt at producing a twin-engine torpedo bomber in WW1. Though it did not enter production, it paved the way for the Blackburn Kangaroo heavy bomber.

A ‘Top Gun’-Worthy Leather Bomber Jacket Will Cost You. ... Dating to 1917, the bomber was sported by WW1 and WW2 fighter pilots, who staved off high-altitude chills in sturdy designs.