Type certificate H1CE
Held today by The Enstrom Helicopter Corporation. It covers 14 models; about 284 aircraft on the U.S. register are built to the designs it names. Last revised September 29, 2025 (revision 44). 43 FAA orders name its designs, and 72 approved modifications build on it.
Models under this certificate 14
TH-28, 280C, 280, F-28F, F-28F-R, 480, F-28C-2R, F-28, 280FX, F-28C-2, F-28C, 280F, 480B, F-28A
On this site
The data sheet on the FAA's site: the approved engines and propellers, weights, speeds and limits for each model.
FAA orders on these designs 43 · newest first
2023-06-222023-11-07 · Ground Proximity System · instruments and avionics
2021-12-092021-23-13 · Ground Proximity System · instruments and avionics
2018-02-212018-02-01 · Main Rotor Head · rotorcraft systems
2018-01-042017-26-03 · Main Rotor System · rotorcraft systems
2012-07-032012-11-05 · Main Rotor Control · rotorcraft systems
2012-01-232011-26-10 · Cyclic trim system · flight controls
2007-10-022007-11-02 · Main rotor push-pull control rod (push-pull rod) · rotorcraft systems
2007-08-152007-16-01 · Main rotor blade retention pin (retention pin) · rotorcraft systems
Approved modifications 72 · companies holding the most
Source: FAA type certificate data sheets (Dynamic Regulatory System); register counts from the FAA register of October 5, 2026. Connections as data: /graph/certificate/H1CE.json.