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DTC was patented by Manfred Depenbrock in the US [2] and in Germany, [3] the latter patent having been filed on October 20, 1984, both patents having been termed direct self-control (DSC). However, Isao Takahashi and Toshihiko Noguchi described a similar control technique termed DTC in an IEEJ paper presented in September 1984 [ 4 ] and in an ...
Glasair Sportsman 2+2 Diesel A Thielert Centurion 2.0s powered variant. Carbon Sportsman A variant with the fuselage constructed of carbon fiber rather than fiberglass.The weight savings of carbon fiber are negated by heavier duty cage, wing struts, and wing skins; both variants have the same empty weight, but the carbon variant gross weight is increased by 150 lb. [6]