Whenever I fly on a turbofan-powered airliner, I always notice how much acceleration there is, which seems like more than any car I've ever owned could do. (That might be an illusion, I realize; acceleration always seems higher to a passenger than to the person pushing the throttle.) I marvel at the power needed for that much acceleration of such a huge aircraft full of passengers, fuel, and cargo.
What is a typical maximum horizontal acceleration of a turbofan-powered airliner during takeoff? (Perhaps I should see if there's an app for my mobile phone that can measure and display acceleration before I fly next.) I'll gladly accept measured real-world values, but if someone wants to calculate an answer, let's assume that we're talking about a Boeing 767-300 on runway 8R at Hartsfield–Jackson Atlanta International Airport, which is 9,999 feet (3,048 m) long. We can also assume that the pilot runs up the engines to the takeoff throttle setting with the brakes on and then releases the brakes suddenly, just to simplify the calculation. (I realize that airline pilots typically ramp up the throttle slowly to avoid alarming passengers.)