Quantum Accelerator is a steel family roller coaster located at Six Flags New England in Agawam, Massachusetts. Manufactured by Intamin, the Straddle coaster model features two launches, a top speed of 45 miles per hour (72 km/h), and 11 airtime moments. Following a year-long delay, the ride opened on April 17, 2026. It replaced Goliath, which was removed from the park at the end of the 2021 season.