A friend posed this hypothelical question after watching Airplane! (The movie) and we ended up discussing for over two hours without convincing each other the other one was right.
This basically ends up being complex math problem.
1. A 747 fully loaded with fuel and passengers.
2. There are no tires and the plane is resting (zero speed) on the belly.
3. Now for the "I know this would never happen in real life" but they are his given fixed variables;
A. The aluminum belly is impervious to damage.
B. The airplane is controlable and will go straight down the runway - make it cement to solve for friction data.
C. The length of the runway is infinate..
So.. this really becomes a question of could the thrust of the engines alone overcome the friction and bring the aircraft to a rotation speed given enough distance?
To dispose of other variables assume 29.92 sea-level pressure, 72 degrees. Dry air.
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