HOWEVER, he now tells me that he has lost confidence in it because it had to have the recalibration. I explained to him that any precision instrument needs to be recalibrated at times, but he is adamant that the Phantom is now unreliable. So... I'm short on reasons why IMU would need to be recalibrated.
The National Highway Traffic Safety Administration estimates that drowsy driving was responsible for 72,000 crashes, 44,000 injuries, and 800 deaths in 2013.4 However, these numbers are underestimated and up to 6,000 fatal crashes each year may be caused by drowsy drivers.5-7.
In fact, on average, over 10,000 people have died each year (2010 to 2014) in drunk-driving crashes. In every State, itâs illegal to drive with a BAC of .08 or higher, yet one person is killed in a drunk-driving crash every 53 minutes in the United States.