HS2 London Northolt Tunnels | TBM "Caroline" launch

In today's video we will see the moment the HS2 Tunnel Boring Machine (TBM) "Caroline" was launched from West Ruislip, I'll explain about where the she is headed and how tunnel boring machines work. 04:19 Where "Caroline" is headed (Northolt Tunnel) 05:17 Moment the TBM was switched on 06:25 How TBMs work You can help support the channel over on Patreon:   / chris_rf_cg   alternatively if you'd like to buy me a coffee you can do so on my Ko-Fi page: https://ko-fi.com/chrisrfcg or by making a purchase on my Redbubble photography page: Prints, Mugs, T-shirts and much more: https://www.redbubble.com/people/EngP... Blog: https://engineeringfocusblog.blogspot... Twitter:   / engfocus   Facebook   / engineeringfocus   Discord:   / discord   Instagram: www.instagram.com/engfocus