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Terrafugia started development of the TF-X in 2013 and the updated design of the exterior was done in 2014 by Vedran Martinek, an Automotive Designer from Croatia. When in flight, the TF-X is effectively autonomous, with the computer able to navigate to a pre-specified landing zone—and pre-selected backup landing zones—by itself, although ...
The Terrafugia Transition is a light sport, roadable airplane under development by Terrafugia since 2006. [3]The Rotax 912ULS [4] piston engine powered, carbon-fiber vehicle is planned to have a flight range of 425 nmi (489 mi; 787 km) using either automotive premium grade unleaded gasoline or 100LL avgas and a cruising flight speed of 93 kn (107 mph; 172 km/h).
Terrafugia [2] (/ ˌ t ɛr ə ˈ f uː dʒ i ə /) is a Chinese-owned corporation, based in Woburn, Massachusetts, United States that is developing a roadable aircraft called the Transition and a flying car called the TF-X. The Transition and TF-X are designed to be able to fold their wings, enabling the vehicles to also operate as street-legal ...
Data from Manufacturer General characteristics Crew: two Capacity: two passengers Length: 6 m (19 ft 8 in) Wingspan: 8.32 m (27 ft 4 in) wings extended Width: 2.24 m (7 ft 4 in) wings folded Empty weight: 600 kg (1,323 lb) Powerplant: 1 × Rotax 912 four cylinder horizontally-opposed liquid and air-cooled piston aircraft engine, 75 kW (100 hp) Performance Maximum speed: 200 km/h (120 mph, 110 ...
where a 0 is 1,225 km/h (661.45 kn) (the standard speed of sound at 15 °C), M is the Mach number, P is static pressure, and P 0 is standard sea level pressure (1013.25 hPa). Combining the above with the expression for Mach number gives EAS as a function of impact pressure and static pressure (valid for subsonic flow):
Graphs of C L and C D vs. speed are referred to as drag curves. Speed is shown increasing from left to right. The lift/drag ratio is given by the slope from the origin to some point on the curve and so the maximum L/D ratio does not occur at the point of least drag coefficient, the leftmost point. Instead, it occurs at a slightly greater speed.
True airspeed (TAS) is the actual speed the airplane is moving through the air. When combined with aircraft direction, wind speed and direction, it can be used to calculate ground speed and direction. Equivalent airspeed (EAS) is true airspeed times root density ratio. It is a useful way of calculating aerodynamic loads and airplane performance ...
This speed is the asymptotic limiting value of the speed, and the forces acting on the body balance each other more and more closely as the terminal speed is approached. In this example, a speed of 50.0% of terminal speed is reached after only about 3 seconds, while it takes 8 seconds to reach 90%, 15 seconds to reach 99%, and so on.