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

Whisper Jet INC.

Named as the FAA publishes it on its approvals.

Holds 4 approved modifications, most of them for the Sikorsky S-55. FAA spelling: Whisper Jet Inc..

Approved modifications 4 · newest first

Sikorsky S-55 4
2010-06-07SR09229RC · Installation approval of a 5 blade main rotor system and the Air Research TSE331-10UA-511SW engine · S-55
2002-07-01SR01034AT · Installation of forward and aft facing seats and cabin interior. · S-55
2002-07-01SR01274AT · Installation of cabin doors and windows. · S-55
2000-10-13SH127WE · Installation of AiResearch TSE-331-3U-303N engine and related changes. · S-55, S-55B, S-55C

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.