Definitions

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Etymologies

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Examples

  • A little difference nonetheless a rather important one (i.e. lift-to-drag ratio).

    Ares I Parachutes Test Successful - NASA Watch

  • If we were to do it with a 15-tonne rocketplane (its wings will make the plane heavier) with a supersonic glide lift-to-drag (L/D) ratio of four, the mass ratio would be about five, so again 60 tonnes of propellant would be needed.

    The Case for Mars

  • Officials say the HTV demonstrations were supposed to test enabling technologies that could eventually be employed by an operational system capable of prompt DARPA says the HTV craft features a high lift-to-drag aerodynamic shape, lightweight thermal protection structures and autonomous guidance, control and flight safety systems.

    SPACE.com

  • The key technical challenges of the HTV-2 program are the design of an innovative high lift-to-drag aerodynamic shape, advanced lightweight but tough thermal protection structures, materials and fabrication technologies, autonomous hypersonic navigation guidance and control systems, and an autonomous flight safety system.

    Space Business and Industry News at SpaceMart.com

  • These technologies include an integrated Fly-by-Wire system that allows the engine/rotor/propulsor system to operate efficiently, with full control of rotor rpm throughout the flight envelope, high lift-to-drag rigid blades, low drag hub fairings, and Active Vibration Control.

    WN.com - Business News

  • These technologies include an integrated Fly-by-Wire system that allows the engine/rotor/propulsor system to operate efficiently, with full control of rotor rpm throughout the flight envelope, high lift-to-drag rigid blades, low drag hub fairings, and

    WN.com - Business News

  • Park explains that the tandem arrangement of the large pectoral fin at the front and smaller pelvic fin at the back of the fish's body accelerates the air flow towards the tail like a jet, increasing the fish's lift-to-drag ratio further and improving its flying performance even more.

    YubaNet.com

  • Lowering the fish's height in the wind tunnel they found that the lift-to-drag ratio increased as the fish models 'glided' near the floor.

    YubaNet.com

  • Calculating the flying fish's lift-to-drag ratios - a measure of the horizontal distance travelled relative to the descent in height during a glide - Choi and Park found that the flying fish performed remarkably well: gliding better than insects and as well as birds such as petrels and wood ducks.

    YubaNet.com

  • And when they analysed how the fish's lift-to-drag ratio changed as they varied the tilt angle, the duo found that the ratio was highest and the fish glided furthest when they were parallel to the surface, which is exactly what they do above the ocean.

    YubaNet.com

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