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Type certificate 1A8

Held today by Helio Alaska INC., earlier by Helio Enterprises, Inc.\Helio Aircraft LLC. It covers 9 models; about 117 aircraft on the U.S. register are built to the designs it names. Last revised March 30, 2020 (revision 38). 16 FAA orders name its designs, and 263 approved modifications build on it.

Models under this certificate 9

H-800, HT-295, H-700, H-395 (USAF L-28A or U-10B), H-250, H-391 (USAF UL-24), H-395A, H-391B, H-295 (USAF U10D)

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 16 · newest first

2022-03-212022-03-15 · Fuel Quantity Indicator · fuel system
2006-07-112006-12-07 · ECi cylinder assemblies · engine
2006-03-102006-03-08 · Vacuum pumps · instruments and avionics
2006-01-232005-25-08 · Electronic Flight Information System (EFIS) · instruments and avionics
2005-02-232005-01-19 · Mode S transponders · instruments and avionics
1987-03-0987-04-09 · Landing Gear Legs · landing gear
1982-08-0382-16-08 · Left and Right Main Spar Carry-Thru Assembly · airframe structure
1981-09-1781-19-04 · Hose Assembly · other and general

Approved modifications 263 · 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/1A8.json.