For myself: Wayback It saves link to multiple different web archives and gives me pdf and warc files.
For others: Archive team have a few active projects to save at risk data and there is IRC channel in which people can suggest adding other websites for saving. They also have wiki with explanations how people can help.
TLDW: Depends on how many hours you will fly per year. 50 Hour/Year - $89000 per year. 100 Hours/ Year - $131000 per year. 200 Hours/Year - $215000 per year
They are showing three things. Spring loaded mechanism. String guided arrows with small metal prongs and wooden armor. Air cannons for shooting a lot of arrows at the same time.
Yes. But they are explaining why it is much more important for rockets compared to regular movies.
