I used to sharpen/grind the sugar beat harvester blades as part of one of my college jobs, they kind of looked like turbine blades. 
THE CHUTE Jeep Climbs Vertical Wall in Sand Hollow Utah
https://www.youtube.com/watch?v=pfy9a_gVVAM&t=11s
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The Chute in Sand Hollow. This obstacle is basically straight up as you can see! It was raining which made things very slippery and muddy. That didn't stop him from going up The Chute and showing us all hows its done
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1977 911S Targa 2.7L (CIS) Silver/Black
2012 Infiniti G37X Coupe (AWD) 3.7L Black on Black
1989 modified Scat II HP Hovercraft
George, Architect
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