Hubbard Aviation Technologies of St. Paul, Minn., last week signed a contract with Aeroshear Aviation Services of Van Nuys, Calif., to fabricate and install engine hush kits for the Rolls-Royce Spey 511-8 engines powering Gulfstream GIIs and GIIIs. Called the QS3, “for quiet Spey engines,” according to Stanley Hubbard, CEO of Hubbard Aviation Technologies and Hubbard Broadcasting, the kits are priced at $2.4 million (installed).
Avionics Mobile Services in England has received UK CAA certification of its RVSM package for the BAC 111-475 and -500 series. The package, developed in partnership with Aeromech in Everett, Wash., includes an air-data display unit from IS&S of Malvern, Pa., and costs about $195,000 installed. Downtime is about three weeks.
The race is heating up in the Gulfstream hush kit market, as three providers maneuver for the inside track. Stage III Technologies and Quiet Technologies Aerospace (QTA) continue their respective and long-time efforts to obtain STCs for hush kits for the Gulfstream II and III.
Miami-based Quiet Technology Aerospace is nearing completion of about 45 hr of planned flight testing of its first FAA-conforming Stage 3 hush kit for Gulfstream IIs and IIIs. Flight testing of a GII equipped with the company’s translating-ejector type hush kit started in late May and follows 30 hr of baseline flight testing of the aircraft without the hush kit installed.
Making jet aircraft acceptably quiet can be a dirty job. Owners don’t want to spend the money, engine makers don’t want to compromise their products’ efficiencies and airport neighbors are rarely happy with the results.
UK-based Avionics Mobile expects to complete by the end of the month an RVSM equipment and operational package for the BAC 1-11. In addition to verifying the RVSM capability of the aircraft’s original Elliott autopilot, the package includes air-data displays from IS&S and flight-test evaluations from Aeromech. Meanwhile, Thunder Avionics, a division of the Thunder Aviation FBO at Spirit of St.
About one jetliner in 10 sits in storage, awaiting either permanent retirement or a change in economic or competitive conditions that warrants a return to service. Despite the airline market’s recovery in the past 12 to 18 months, the number of inactive aircraft has stayed essentially stable since soon after the 9/11 terrorist attacks on the U.S. just over four years ago.
Transport aircraft manufacturers, including business jet OEMs, will be required to develop operational limitations for all future Part 25 designs, under a far-ranging notice of proposed rulemaking intended to eliminate “widespread fatigue damage” (WFD) as aircraft age.
After some six years of development, Stage III Technologies is ready to start installing its FAR Part 36 Stage 3 combined hush kit/thrust reverser for the Gulfstream II, IIB and III. The La Jolla, Calif.-based company received FAA certification of the hush kit in November and an STC for the complete hush kit/reverser system in mid-May.