This motorcycle was inspired by the design of the Boeing/Sikorsky Comanche helicopter, one of the first stealth helicopters ever created. The Comanche incorporates retractable weapons and radar-absorbent materials. From Season 1, Episodes 9, 10 and 11.
Image 1 of 1
This week's Friday Facts is all about Triumph and Norton motorbikes
Want to be kept up to date with all things Discovery, from news to your favourite shows? Sign up to receive the newsletter here.