It's pentagon time!

Sources at bottom.

Find me elsewhere:
Instagram:   / philedwardsinc  
Twitter:   / philedwardsinc  
Patreon:   / philedwardsinc  

Where I get my music (Free trial affiliate link):
https://share.epidemicsound.com/olkrqv
My camera as of February 2022 (affiliate link):
https://amzn.to/3HDcWVz
My main lens: https://amzn.to/3IteXEK
My main light: https://amzn.to/3pjO0M8
My main light accessory: https://amzn.to/3M6eL0j

Honestly, this free DOD book had everything I needed: https://history.defense.gov/Portals/7...

That said, here's a nice pop history I used (affiliate link):
https://amzn.to/3Kfzw97

Here's the breathless (and awesome) coverage in Popular Mechanics:
https://books.google.com/books?id=WNY...

Here's a ton of construction pics at Library of Congress: https://blogs.loc.gov/picturethis/202...