> My dad said when he pushed his jet supersonic, you could watch the gas gauge unwind. Did your dad fly military jets? Most older jets can't supercruise, i.e.

> My dad said when he pushed his jet supersonic, you could watch the gas gauge unwind. Did your dad fly military jets? Most older jets can't supercruise, i.e. go supersonic without using afterburners, and afterburners consume unholy amounts of fuel. Concorde did consume quite a lot of fuel per passenger mile, but it could supercruise.