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

Regal Air INC.

Holds 2 type certificates (6 models). FAA spelling: Regal Air Inc..

Type certificates 2

5A5Aircraft · 305F, 305D, 305C, 305A
3A14Aircraft · 305E, 305B

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