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Registered aircraft · FAA record as of September 25, 2026
N174HM

Merkel Howard H J4B-2

N174HM is a Merkel Howard H J4B-2, a rotorcraft with a piston engine (a helicopter or multicopter). It has 2 seats. It is registered to Mid Atlantic Air Museum, a corporation in Reading, Pennsylvania. The registration is valid: it was issued on March 5, 2024 and expires on March 31, 2031. It holds an experimental airworthiness certificate for amateur built, dated May 11, 1989.

Aircraft

Maker
Merkel Howard H
Model
J4B-2
Serial number
HM-174
Type
Rotorcraft
Power
Piston (reciprocating), 1 motor · Cont Motor 0-200 SERIES · 100 hp
Seats
2
Year built
Not given
Transponder code
A128C4 (octal 50224304)

Registration

Status
Valid registration
Certificate issued
March 5, 2024
Expires
March 31, 2031
Last FAA action
March 5, 2024
Airworthiness
Experimental · Amateur built · May 11, 1989
FAA region
Eastern
FAA record id
00995470

Owner as the FAA publishes it

Name
Mid Atlantic Air Museum
Type
Corporation
Address
11 Museum Dr
Reading, PA 19605

Owners can ask the FAA to withhold their name and address from public files. When they do, those fields are blank here as well. How that works.

Documents on file 0

No bills of sale, loans or other documents are indexed against this tail number.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, September 25, 2026. See this record on the FAA site · This record as data