fore-and-aft movement indicator

  • 11Triangle control frame — The triangle control frame (TCF or A frame) is widely used in hang gliders, powered hang gliders, and ultralight aircraft. TCF is just one of many sorts of control solutions. TCF resolves a means of using weight shifting attitude control in… …

    Wikipedia

  • 12Citroën 2CV — Manufacturer Citroën Production 1948–1990 [1] …

    Wikipedia