As more RVSM STCs are awarded, operators of most makes and models, even those of much older and rarer airframes, will soon have many places to get RVSM installations and other related work. Programs differ considerably in the extent of work performed, pricing and downtime. Here is a status report of just a few of the latest RVSM STC projects under way:
Avanti–Piaggio America has received FAA approval for RVSM applicable to all models of the turboprop twin coming off the production line since May. A $70,000 retrofit package–using the IS&S encoding altimeter and Collins ADC–is under development.
Beechjet/Diamond–Elliott Aviation is partnering with Honeywell to produce an RVSM mod for Beechjets and Diamonds. The mod, targeted for approval in the first quarter of next year, consists of the Honeywell AZ-252 ADC, Am-250 altimeter, BA-250 altimeter display and AL/VN-800 altitude alert controller. Separately, Raytheon Aircraft earlier announced it was also developing an RVSM package for Beechjets and Diamonds, using IS&S altimetry.
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