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Examples

  • Rex Rivolo , a former Pentagon defense analyst and aviator, said helicopters are "inherently very vulnerable"—especially in takeoff and landing.

    Military Aims to Reduce Helicopter Vulnerability to Low-Tech Weapons

  • Rex Rivolo , a former Black Hawk aviator and helicopter expert, said the distinctive noise of a helicopter's rotor blades is "the signature that gives you away."

    Crashed Copter Sparks Concern About Secrets

  • Mr. Rivolo said the military had studied a number of methods for reducing helicopter noise, including pairing helicopters with unmanned aircraft to cancel out noise.

    Crashed Copter Sparks Concern About Secrets

  • “I intend to get the maneuvering issue squarely on the table,” Rivolo assured.

    The Dream Machine

  • A helicopter, with its rotor or rotors over the fuselage, could recover nine out of ten times in such circumstances but the Osprey would always crash, Rivolo asserted.

    The Dream Machine

  • When the committee met in June 2001 to hear briefings by invited experts, one was Arthur “Rex” Rivolo of the Institute for Defense Analyses, one of a handful of federally funded think tanks paid to do independent research for the Pentagon.

    The Dream Machine

  • Rivolo replied that while FAA statistics attributed only 8 percent of major helicopter accidents to vortex ring state, the figure really should include mishaps resulting from failed attempts to autorotate and other hard landings.

    The Dream Machine

  • Rex Rivolo and other critics deemed that a test failure, but Walters and his testers concluded the Osprey could do such a mission in a single night if need be, for a couple of reasons.

    The Dream Machine

  • The HROD tests were continuing, though, because Navair was trying to satisfy Institute for Defense Analyses expert Rex Rivolo that the tests had been adequate.

    The Dream Machine

  • Rivolo had been doing that work for IDA since the early 1990s, when he joined the think tank after an extraordinary early career.

    The Dream Machine

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