1:1 scale yard ladder in place to touch and test. Mmm... cardboard. Side on, 8" vertical clearance; helix supports
1:1 scale yard ladder in place to touch and test. Mmm... cardboard. Standing up, a little more than the actual grade involved
1:1 scale yard ladder in place to touch and test. Mmm... cardboard. Down the ladder towards the helix
Different angle of engine and ladder co.
Ladder 20 and engine 21 to the rescue