
City Bus
A city bus is a large, rigid transit-style vehicle designed for public urban passenger transportation, typically 40 feet long with capacity for 70-90 passengers.
Fun Fact
The average city bus in the US travels over 40,000 miles per year and lasts 12-15 years in service before major overhaul.
Price History
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Blimp
A blimp is a type of non-rigid or semi-rigid airship used for advertising, passenger rides, and aerial observation, with the Goodyear Blimp being the most iconic example.

Space Shuttle (per mission)
The Space Shuttle program conducted 135 missions from 1981 to 2011, with the total lifetime cost averaging $1.5 billion per mission when including all program overhead from development through retirement.

Tunnel Boring Machine
A Tunnel Boring Machine (TBM) is a massive heavy equipment machine used to excavate tunnels with a rotating cutting wheel, typically employed in large-scale infrastructure projects like subways and highways.

Helicopter
A helicopter is a rotorcraft vehicle capable of vertical takeoff, hover, and landing, used for transport, training, and recreation.