28 degree angle tilt, and holding! Apparently, this is how they did the testing back in 1933 of these classic 60-person double-decker buses at the the London General Omnibus Company:
(image via)Read more at http://www.darkroastedblend.com/2013/09/high-powered-laser-wonder-cleaning.html#UTTW1AKmCuQXdmjx.99
Advertisements
