1957 Helio H-391B

3 aircraft total registered

Active

100%

Active rate

States

69 yrs

Fleet age

N-Number ↕	Serial # ↕	Owner ↕	Location ↕	Status ↕	Cert Date ↕	Expires ↕
N4120D	044	CLARK KYLE B	UNDERHILL, VT	Active	2022-10-19	2029-10-31
N4121D	041	SESSIONS JOHN L	KIRBYVILLE, TX	Active	2012-03-22	2028-03-31
N4123D	042	THUN KARL J	GRAHAM, WA	Active	1978-03-03	2030-02-28

Showing 3 of 3 aircraft · All H-391B years →

Specs

Seats: 4
Engines: 1
Engine type: LYCOMING GO-435C&D SER
Power: 260 hp
Cruise speed: 117 mph

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About the 1957 Helio H-391B

There are 3 registered 1957 Helio H-391B and 16 Helio H-391B across all years in the United States. First produced in 1954. Average fleet age is 69 years.