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

Archangel Systems INC.

Named as the FAA publishes it on its approvals.

Approved to make 8 classes of equipment. FAA spelling: Archangel Systems Inc..

Equipment approvals technical standard order authorisations

2023-11-14TSO-C5f · DIRECTION INSTRUMENT, NON-MAGNETIC (GYROSCOPICALLY STABILIZED) · Data Translator · instruments and avionics
2023-11-14TSO-C4c · BANK AND PITCH INSTRUMENTS · Data Translator · other and general
2016-03-08TSO-C201 · Attitude and Heading Reference Systems (AHRS) · Attitude Heading Reference System · instruments and avionics
2010-01-26TSO-C5f · DIRECTION INSTRUMENT, NON-MAGNETIC (GYROSCOPICALLY STABILIZED) · Air Data Attitude Heading Reference System · instruments and avionics
2010-01-26TSO-C106 · AIR DATA COMPUTER · Air Data Attitude Heading Reference System · instruments and avionics
2010-01-26TSO-C6e · DIRECTION INSTRUMENT, MAGNETIC (GYROSCOPICALLY STABILIZED) · Air Data Attitude Heading Reference System · instruments and avionics
2010-01-26TSO-C88b · AUTOMATIC PRESSURE ALTITUDE REPORTING CODE-GENERATING EQUIPMENT · Air Data Attitude Heading Reference System · instruments and avionics
2010-01-26TSO-C4c · BANK AND PITCH INSTRUMENTS · Air Data Attitude Heading Reference System · instruments and avionics

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.