Dallas-based Business Jet Technologies is teaming with Shadin and AeroMech to develop an RVSM equipment package for Gulfstream IIs and IIIs. The package, said a spokesman, can be installed for about $175,000 at the company’s Tulsa, Okla. maintenance shop with approximate downtime of five to seven days. Gulfstream owners can purchase the kit, tentatively priced at $150,000, for installation locally. A “pin for pin” design allows for a direct drop-in replacement of the air-data computer and allows the entire package to be used with existing wiring, significantly reducing downtime, the company said. The package includes a new air-data computer, Arinc 429-formatted ports and provisions for an engine trend-monitoring system. Receipt of an STC is scheduled for mid- to late summer. Business Jet Technologies is affiliated with Business Jet Services, an aircraft sales, management and charter company, and Business Jet Center, with FBOs in Dallas and Oakland, Calif.