Foundation of performance fighter from Saab.
I wasn't aware of this fantastic plane until recently.
Developed in '50-'60. It was 2 steps ahead of its competitors.
The Draken, literary: Dragon & Kite, which really suited this plane.
Its even succeeded in supersonic which is not its initial goals.
Its double delta allow this plane to goes stable both at high and low speed.
Low budget, low maintenance requirement and low operating cost.
STOL: It use short runway, also can use the highway for landing and take off.
Once landed, it only require 5 minutes for rearm and refuel.
It could climb to 33,000 feet in 2 minutes, 20 seconds.
Draken design concept is still profound in later development of Saab such as Viggen and now Gripen.