Aircraft Designs was created in 1986.
RagWing Aircraft Designs was created in 1987.
Aeronautical engineer is the one who designs aircraft. In the olden days before the inception of aeronautical engineer profession, aircraft designs were prepared by civil engineers. This is the main reason why old aircraft design employed many trusses in the structures because of such they were heavy. One modern design principle is the so called weight-to-strength ratio which contemplates the balance of the aircraft weight and structural strength. Thus, a good aircraft must be lightweight and at the same time structurally strong.
Related Designs was created in 1995.
Incase Designs was created in 1997.
Heldeberg Designs was created in 1996.
MJ Designs was created in 1986.
Skagen Designs was created in 1989.
Bowen Designs was created in 1978.
Cascade Designs was created in 1972.
Sigma Designs was created in 1982.
Denton Designs was created in 1984.
Working Designs was created in 1986.