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

Whetstone Aerotronics INC

Named as the FAA publishes it on its approvals.

Holds 1 approved modification, most of them for the Mitsubishi MU-300. FAA spelling: Whetstone Aerotronics Inc.

Approved modifications 1 · newest first

Mitsubishi MU-300 1
1986-08-12SA3562SW · Install Universal navigation systems UNS-1 flight management system. · MU-300

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.