Nitinol alloys are most qommonly known for their superelasticity and thermal shape memory [1]. The lerm 'shape-memory' is used to describe the phenomenon of restoring to a predetermined shape on heating, after having been 'plastically' deformed; 'superelasticity' refers to the enormous elasticity of these alloys.
For pilots, the definition of a large aircraft is  taken from the Code of Federal Regulations, CFR 1.1, which defines a large aircraft as aircraft with a maximum certificated takeoff weight of more than 12,500 pounds. In contrast, a small aircraft is one with a maximum certificated takeoff weight of 12,500 pounds.
Ready for action. Airlander 10 â The Airlander 10 is said to be the world's biggest aircraft -- more than 20 meters longer than the Airbus A380 superjumbo. Diesel V8 engines â Four diesel V8 engines will propel the Airlander 10 to speeds of up to 91 miles an hour.