BOSTON (CBS) – It’s practice for a disastrous day they hope will never come.

Several agencies came together on a Logan Airport runway Saturday to simulate an aircraft collision and resulting fire, with simulated injuries.

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Emergency responders participate in a hazmat drill at Logan Airport in Boston. (WBZ-TV)

“This is very good practice. There’s a lot of collaboration between various agencies in the city and Massport. It allows us to really put a real world on it. It’s not a power point presentation. They actually get to touch patients, they see them, they pseudo-treat them,” said Boston emergency responder Joseph O’Hare.

These drills are required. It is impossible to simulate everything 100 percent, but hopefully if a terrible event does happen, everyone will be just a bit more ready.

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Fire and smoke take over during a simulated airplane disaster and hazmat drill at Logan Airport. (WBZ-TV)

“It’s tough to simulate a natural disaster, of course, so the best we can do is practice, practice, practice,” said MassPort Fire Chief Joseph DeGrace. “What we do here is a hundred gallons of fuel, real life is upwards to 15,000-plus gallons of fuel.”

Three hundred volunteers also took part, many of them acting as victims with injuries. It was an inside look at how a disaster response works.

Volunteers participate in a simulated airplane evacuation at Logan Airport in Boston. (WBZ-TV)

“There’s an incredible number of different first responders here, which is really cool to see how they all interact. Interesting scenario,” said drill volunteer Chris Vandeven.

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These drills are mandated by the Federal Aviation Administration.