The ordered structure exhibits superior elevated-temperature properties because of the long-range ordered superlattice, which reduces dislocation mobility and diffusion processes at elevated temperatures.
In recent years they have become carbon neutral, lowering emissions by reducing long-range trucking and using bio-diesel in delivery trucks, upgrading to energy efficient equipment and purchasing carbon offsets.
Development continued during the inter-war era, although at a more limited pace as aircraft were expected to take over in the long-range bombardment role.