Operators of U.S.-registered CitationJets must disengage the pitch-trim/ autopilot circuit breakers to prevent runaway pitch trim, a condition that has led to at least one accident, according to an October 21 AD (2203-21-17). A CitationJet was ditched on July 22 in Penn Cove in Coupeville, Wash., following a loss of elevator trim control, resulting in an uncommanded nose-down pitch attitude.
The first test flights of a Cessna Citation X equipped with Winglet Technology’s new elliptical winglets are proceeding well, according to Bob Kiser, president of the Wichita-based modification kit manufacturer. The winglets are expected to give the airplane an even higher maximum cruise speed at high altitude as well as improved climb performance and longer range.
News from the Lockheed Martin Advanced Developments Projects (ADP), aka The Skunk Works, is a rare commodity. But the Palmdale, Calif.-based R&D shop recently described progress in a hypersonic missile demonstration program, named the Revolutionary Approach To Time-Critical Long-Range Strike (RATTLRS).
Aviation Partners said it is in the “preliminary stages” of “looking at the entire Citation line” as the possible next candidate for the company’s performance-enhancing blended winglets. No timetable, however, was immediately available. Meanwhile, the Seattle-based company expects to receive certification of its blended winglets for the Hawker 800 and 800XP in mid- to late summer, more than a year later than originally planned.
As the month of May came to a close, a team of Boeing engineers were putting the finishing touches to a one-of-a-kind flying machine at an outpost of that company’s “Phantom Works” just outside the sun- and sand-blasted southwestern Arizona town of Yuma.
In the arcane world of helicopter rotor aerodynamics, two concepts that show promise for enhancing safety and performance in the world of high-density-altitude heavy lift are under development on opposite sides of the U.S. Briefings on both were presented at the American Helicopter Society’s annual forum last month in Phoenix.
Researchers at the University of West Florida’s Institute for Human and Machine Cognition in Pensacola are developing a symbol-based, flight-deck display that is capable of providing an instantaneous presentation of an aircraft’s flight situation to the pilot. Named Oz, the surprisingly intuitive concept is seen as applicable to all fixed- and rotary-wing aircraft, large and small, civil and military.
Dassault hopes to display the cockpit simulator for its new Falcon 7X sidestick fly-by-wire business trijet at the NBAA Convention in October in Orlando, Fla. Orders for 30 of the new jets are secured by $1 million non-refundable deposits, according to the company. First flight is scheduled for the end of the first quarter 2005, with certification planned in the third quarter of 2006.
Concerned about attempts by adversaries to jam global positioning satellite system signals–as occurred with only limited success during the recent Iraq conflict–the U.S. Air Force is moving ahead with plans to field a new-generation constellation of satellites, called GPS III. After a months-long logjam, the Air Force next month will begin accepting requests for proposals to develop and deploy the satellites sometime between 2010 and 2013.
The Sino Swearingen SJ30-2 that crashed in a remote area of Texas on the morning of April 26 was on the second in a series of flights to complete flutter certification before it suddenly rolled and went into an uncontrolled descent into the ground. Company test pilot Carroll Beeler, 59, was killed in the accident. No one else was aboard.