Kaman K-Max K-1200: Strangest Super Achiever

The millions dollar Kaman K-Max K-1200 is a US-built flying machine with synchropter, or intermeshing rotor design, which is arguably the oddest way to build a dual rotor helicopter. The intermeshing rotors share airspace at millisecond intervals and appear ready to collide at any moment, but they never actually contact.

The rotors, which have a dolphin-like look from the side and angle and mesh together like two gears that never contact, enable lifting capacities that much beyond those anticipated of a helicopter of this size. The helicopter seems like a fish from the front due to its laterally compressed body's narrowness.

Its compact design only leaves room for the pilot. Being able to lift a freight load greater than the empty weight of the helicopter itself is a remarkable accomplishment for this helicopter, which has half as many rotors and a smaller body than a typical helicopter.

With a maximum gross weight of 12,000 pounds, the helicopter, which weighs just 5,145 pounds, can support an additional 6,855 pounds of weight. The K-1200 is used for supply delivery, search and rescue, and battling fires. The development of a remotely piloted version also produced a device that could approach risky circumstances without endangering aviators.

Role: Medium lift helicopter
Manufacturer: Kaman Aircraft
First flight: December 23, 1991
Status: In production
Produced; 1991–2003, 2015–present