The source from 1968 differs from the more recent data because since 1968, engines and designs of planes have been advanced due to technological advances so that planes can fly faster. Of course there are other faster speeds. The US Space Shuttle flew at a record 16,000 mph (7153 m/s).
The short answer is that for a formal check it usually takes at least one to three days, but often up to a week. However keep in mind that many positions require an FBI background check which takes approximately thirty days and be aware that each situation varies because certain factors can hold this process up. Different employers mean different things when they say theyâre going to do a background check.
After 30 Days. Depending on the job for which you are applying, the background check may include a criminal and even financial check. If you or your employer have not received the results of your background check within 30 days, you can check with the TSA at 877-429-7746.hether you are applying for a job as an airport screener for the Transportation Security Agency or for some other position that requires entry into a secure area of an airport or other transportation facility, you must undergo a TSA background check.