What is the best way to get aircraft flight manunals? I may have an opportunity to fly for a different company next year and I’d like to learn about the airplane ahead of time. Any ideas?
Many manuals are available as hard copies or on CD. First, try searching for them on a search engine. There are entire online stores devoted to aircraft manuals. Also try Amazon.com and, of course, eBay.
Welcome to FlightAware. 
What aircraft type are you looking for?
newer gulfstream
Which model? PM me if you prefer.
smartcockpit.com/ Then “My Aircraft” Tab.