Doubt the inkling was tracking the Chinook on the ground. A Chinook has a top speed of 170 knots (196 mph). That means it cleared 1,000 miles in just over 5hrs. I highly doubt an Inkling is traveling 196+ mph on the ground. Also, the ground is not flat, there are hills, mountains, lakes, rivers, forrest, etc, etc, that the Inkling would have to deal with while running/tracking the Chinook. With that said, the Inkling was hanging on to the Chinook. When it ripped in to the Chinook it probably diabled critical systems causeing a controlled crash.