N37991 - 1941 Piper J4E Aircraft Registration

J4

1941 PIPER J4E

Aircraft Description

N37991 is a 1941 Piper J4E, a single-engine reciprocating (piston) aircraft registered to Bayne Clyde O in Newcastle, WY. The registration certificate was issued on July 9, 2015. The registration is set to expire on July 31, 2028. Powered by a Cont Motor C85 SERIES engine producing 85 horsepower, N37991 is. The aircraft's Mode S transponder code is A458E7 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N37991 was last updated on May 26, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Piper J-4 Cub Coupe, America's first successful side-by-side training aircraft, revolutionized flight instruction in the late 1930s by offering improved instructor-student communication over traditional tandem seating arrangements. First flown in 1938, it was a high-wing single-engine monoplane that seated two occupants side-by-side with an enclosed cabin. Spanning 35 feet 3 inches with a 65-75 horsepower Continental engine, approximately 1,250 were built by Piper Aircraft Company before production ended in December 1941. AviatorDB tracks 48,285 Piper aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is J4.

AviatorDB has found no NTSB accident or incident reports involving N37991. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
1941
Manufacturer
PIPER
Model
J4E
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
J4J-4 Cub Coupe
Cruise Speed
75 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
Classification
Standard Category
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
July 9, 2015

Registered Owner

Name
BAYNE CLYDE O
Address
36 CHEYENNE RIVER RD
City
NEWCASTLE
State / Zip Code
Wyoming82701-9556
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
CONT MOTOR
Engine Model
C85 SERIES
Horsepower
85 HP
Mode S Code (Oct)
51054347
Mode S Code (Hex)
A458E7

Additional Details

Registration
N37991
Serial Number
4-1485
Number of Engines
1
Number of Seats
2
Expiration Date
July 31, 2028
Last Action Date
May 26, 2023
Last Update Date
January 19, 2026
Unique ID
00540204

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-05-15 01:32:20 UTC