Which engineer put forward the proposal for the 100 kilometer boundary?
Answer
Theodore von Kármán
The specific altitude marker of 100 kilometers was proposed by the Hungarian-American aerospace engineer Theodore von Kármán. His proposal was rooted in a detailed analysis comparing the required performance characteristics of vehicles attempting to operate at extreme altitudes. Von Kármán focused on identifying the altitude where the necessary speed for aerodynamic lift generation—the mechanism utilized by conventional aircraft—would equate to the minimum speed required to maintain a stable, non-falling trajectory around the planet, which is orbital velocity. This convergence point provided a clear, scientifically grounded, yet conventional limit for atmospheric flight.
#Videos
Where does outer space begin? - YouTube
Related Questions
What is the internationally accepted altitude defining the Kármán line?Which engineer put forward the proposal for the 100 kilometer boundary?Which organization formally adopted the 100 km Kármán line standard in 1961?What required speed must an aircraft theoretically achieve at 100 km to fly one pass?What altitude boundary do the United States Air Force and NASA historically use for astronaut wings?What critical flight physics concept defines the altitude of the Kármán line?What is the Kármán line fundamentally considered, rather than a physical phenomenon?What mode replaces aerodynamic lift reliance for sustained flight above the Kármán line?What orbital timeframe is mentioned for staying aloft at the 100 km boundary?What key aspect differentiates the $100 ext{ km}$ $ ext{FAI}$ standard from the $ ext{US}$ $80 ext{ km}$ designation?What real-world implication does the Kármán line determine regarding space missions?