The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Hartman Systems CO

Named as the FAA publishes it on its approvals.

Holds 3 approved modifications, most of them for the Gulfstream G-1159 Gulfstream II and III. FAA spelling: Hartman Systems Co.

Approved modifications 3 · newest first

Gulfstream G-1159 Gulfstream II and III 2Lockheed 1329 1
1969-12-04SA1104SW · Hartman vertical scale engine instruments and OAT instrument. · 1329 Series
1968-11-29SA701EA · Installation of Hartman Systems Company vertical scale engine instruments. · G-1159
1960-01-01SA724EA · Installation of vertical scale full quantity indicators Model VS-2PE (639- ) as replacement for original round dial... · G-1159

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.