posts: 39005
Data license: Public Domain
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| post_id | thread_id | thread_title | post_number | author_username | post_date | post_date_iso | post_body |
|---|---|---|---|---|---|---|---|
| 39005 | 423 | Mighty Water Dragon: | 92 | Roy Stewart | May 27, 2012 | 2012-05-27T13:08:41-0400 | gnar gnar wrote: Roy's fancy pictures don't change the fact that those shell bumps increase the surface area of the fin. Click to expand... They are called tubercules. Doesn't surface area increase drag? Click to expand... tubercules increase surface area but reduce overall drag. isn't this why you set your fins the way you do Roy ? Click to expand... Your statement is too vague to answer, rephrase it please. |