N4251K - 1948 Ryan Navion Aircraft Registration

NAVI

1948 RYAN NAVION

Aircraft Description

N4251K is a 1948 Ryan NAVION, a single-engine reciprocating (piston) aircraft registered to Vlahakis Gregory G in San Jose, CA. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on November 4, 1955. The registration certificate was issued on September 27, 2024. The registration is set to expire on September 30, 2031. Powered by a Cont Motor E225 SERIES engine producing 225 horsepower, N4251K is. The aircraft's Mode S transponder code is A510B7 (hex), used for ADS-B identification and flight tracking. The FAA registry record for N4251K was last updated on September 27, 2024. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Ryan Navion was an innovative post-World War II light aircraft that bridged military fighter design with civilian aviation needs. First flown in 1946, it was a low-wing, single-engine monoplane that could seat four to five passengers with distinctive tip tanks and enclosed cockpit styling derived from the P-51 Mustang. Spanning 33 feet with a length of 29 feet, it achieved speeds up to 175 mph with various Continental and Lycoming engines. Originally manufactured by North American Aviation, production continued through multiple companies until 1976. AviatorDB tracks 368 Ryan aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is NAVI.

AviatorDB has found no NTSB accident or incident reports involving N4251K. 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
1948
Manufacturer
RYAN
Model
NAVION
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
NAVINavion
Cruise Speed
126 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
November 4, 1955
Classification
Standard Category
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
September 27, 2024

Registered Owner

Name
VLAHAKIS GREGORY G
Address
1615 SPARKLING WAY
City
SAN JOSE
State / Zip Code
California95125-4563
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Engine Manufacturer
CONT MOTOR
Engine Model
E225 SERIES
Horsepower
225 HP
Mode S Code (Oct)
51210267
Mode S Code (Hex)
A510B7

Additional Details

Registration
N4251K
Serial Number
NAV-4-1251
Number of Engines
1
Number of Seats
4
Expiration Date
September 30, 2031
Last Action Date
September 27, 2024
Last Update Date
September 27, 2024
Unique ID
00821894

Data Source

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

Last updated: 2026-06-15 01:32:20 UTC