N121R - 1943 Boeing PT-13D Aircraft Registration

C135

1943 BOEING PT-13D

Aircraft Description

N121R is a 1943 Boeing PT-13D, a single-engine reciprocating (piston) aircraft registered to Herzog Contracting Corp in St Joseph, MO. This aircraft holds a experimental airworthiness certificate issued by the Federal Aviation Administration on April 18, 1979. The registration certificate was issued on May 9, 1991. The registration is set to expire on May 31, 2027. Powered by a P&w R1340 SERIES engine producing 600 horsepower, N121R is. The aircraft's Mode S transponder code is A058E0 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N121R was last updated on January 22, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Boeing Company, headquartered in Arlington, Virginia, is one of the world's largest aerospace companies. Boeing has manufactured commercial airliners, military aircraft, and space vehicles since 1916, with iconic products including the 737, 747, 767, 777, and 787 Dreamliner. AviatorDB tracks 6,953 Boeing aircraft currently registered in the FAA database, including the PT-13D model.

AviatorDB has found no NTSB accident or incident reports involving N121R. 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
1943
Manufacturer
BOEING
Model
PT-13D
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
C135WC-135
Cruise Speed
93 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
April 18, 1979
Classification
Experimental 4 Category
Type Registration
Corporation
Status
Valid Registration
Cert Issue Date
May 9, 1991

Registered Owner

Name
HERZOG CONTRACTING CORP
Address
600 S RIVERSIDE RD PO BOX 1089
City
ST JOSEPH
State / Zip Code
Missouri64502
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
P&W
Engine Model
R1340 SERIES
Horsepower
600 HP
Mode S Code (Oct)
50054340
Mode S Code (Hex)
A058E0

Additional Details

Registration
N121R
Serial Number
75-5510
Number of Engines
1
Number of Seats
2
Expiration Date
May 31, 2027
Last Action Date
January 22, 2023
Last Update Date
January 19, 2026
Unique ID
00600400

Data Source

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

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