top | item 32657209 (no title) bogrollben | 3 years ago I don't understand why they only painted a single blade black. Why not all of them? discuss order hn newest fastball|3 years ago A. 3x the workB. I imagine part of the benefit is from alternating colors which makes the blades more visible as they spin. ravel-bar-foo|3 years ago From the paper, painting a single blade reduces 'visual smear'.
fastball|3 years ago A. 3x the workB. I imagine part of the benefit is from alternating colors which makes the blades more visible as they spin.
fastball|3 years ago
B. I imagine part of the benefit is from alternating colors which makes the blades more visible as they spin.
ravel-bar-foo|3 years ago