Registry / Smith / THORP T-18 / N104X

Own N104X?

Claim ownership to earn the Verified Owner badge on your reviews and to reply to other pilots' feedback.

+ Submit ownership claim →

We won't display your email publicly.

Helpful: bill of sale, registration certificate, insurance dec page. Names are auto-matched too — many claims auto-verify without a document.

Claims auto-verify when your name matches the FAA registrant. Otherwise an admin reviews — usually within 1 business day.

N104X V

Smith THORP T-18 · 1970 · Washoe Valley, NV

FAA Registry ↗ FlightAware ↗ FlightRadar24 ↗ ADS-B Globe ↗

This aircraft — FAA registration facts

N104X is a 1970 Smith THORP T-18 (serial 624), registered to Leider Robert G (partnership) in Washoe Valley, NV. Its FAA registration is recorded as v and expires November 2028; the airworthiness certificate dates from December 1979 (46 years ago). It carries a Lycoming O&VO-360 SER engine rated at 180 hp. Its Mode-S transponder broadcasts the ICAO 24-bit address A0159D.

Registered owner
Leider Robert G
Owner type
Partnership
Based in
Washoe Valley, NV
Serial number
624
Year built
1970 · 56 yrs old
Airworthiness class
42
FAA status
V
Mode-S / ICAO24
A0159D · 50012635 octal
Certificate issued
Nov 20, 2021
Airworthiness date
Dec 10, 1979
Last FAA activity
Jun 23, 2023
Registration expires
Nov 30, 2028
FAA region
4

Source: FAA aircraft registry (public record). Community reviews and photos below.

Engine on this aircraft

Engine
Lycoming O&VO-360 SER
Engine type
Reciprocating (Piston)
Rated power
180 hp
Power per seat
90 hp
FAA engine code
41514

Source: FAA engine reference (ENGINE.txt), matched on this registration's engine code.

Community facts about N104X

Reported by pilots, owners and enthusiasts — community-reported and admin-checked before they publish. Always verify anything important against the aircraft's records.

Add a fact about N104X

Your email is used only to notify you about your submission — it's never shown publicly.

Pilot & Owner Reviews

Be the first to share what you know about N104X.

Share your experience with N104X

Help other pilots, buyers and curious aviators. Reviews appear after a quick admin check.

+ Add detailed ratings (optional)
About your time with N104X (specific to this airplane — helps other pilots)
Would you fly this airplane again?
Recommended for (pick any)

20–2,000 characters

We won't display your email publicly.

No reviews yet — be the first.

Pilot & Owner Reviews

Own N104X? Claim ownership to earn the Verified Owner badge on your reviews and to reply to other pilots' feedback.

Flight history & live tracking

ICAO24: a0159d
Track N104X on external services
FlightAware FlightRadar24 ADS-B Exchange Globe ADS-B.lol Globe FAA Registry
No flight data on file yet for N104X.
Queries adsb.lol — works only if N104X is broadcasting ADS-B right now. Daily sweep at 04:43 MST · external trackers above for guaranteed live data.
📸 Upload a photo of N104X

We won't display your email publicly.

Up to 10 photos per aircraft per uploader. Photos appear after admin approval.

Aircraft Type — ACFTREF 89510P9

Smith THORP T-18
Engines: 1
Type: piston
Seats: 2
Cruise: 84 KTAS
Category: Standard

Engine — CODE 41514

Manufacturer: Lycoming
Model: O&VO-360 SER
Type: Reciprocating (Piston)
Horsepower: 180 HP

FAA Registration Record

N-Number: N104X
Serial Number: 624
Year Manufactured: 1970
ACFTREF Code: 89510P9
Engine Code: 41514
Status: V (V)
Certification: 42
Type Aircraft: Fixed Wing Single Engine (4)
Type Engine: Reciprocating (Piston) (1)
Source: master

Documents & resources

Commonly available reference sources for the Smith THORP T-18. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

View the Smith THORP T-18 model overview, reviews & photos →

These are commonly available reference sources. FerryFlight Hub does not provide sample or generated documents on this page.

FerryFlight Hub is independent and not affiliated with, endorsed by, or sponsored by any aircraft manufacturer, the FAA, or any document publisher. References are NOT for operational, navigational, or flight-planning use — always rely on the current, FAA-approved documentation for the specific aircraft. We link to official or publicly available sources and do not host or redistribute copyrighted material. Provided "as is," without warranty of any kind as to accuracy, completeness, or currency.

Report a problem with this document (wrong fitment, outdated, or copyright / takedown) · Full document policy

Transponder / ADS-B

Mode S (octal): 50012635
ICAO 24-bit (hex): A0159D
ADS-B Exchange ↗ | FlightAware ↗

Registrant

Leider Robert G
Partnership
465 Sparrow Way
Washoe Valley, NV, 897049089
FAA Region: 4
Additional Names
LEIDER LARRY R

Key Dates

Certificate Issued Nov 20, 2021
Airworthiness Dec 10, 1979
Expiration Nov 30, 2028
Last Activity Jun 23, 2023
Data as of Nov 2, 2026

Calculate Performance

Calculate density altitude, takeoff roll, and climb performance for a Smith THORP T-18 at any airport.

Airport Performance Calculator

Pre-filled with THORP T-18 performance data

Need to ferry this aircraft?

FerryFlight connects you with experienced ferry pilots for domestic and international delivery flights.

Get a Quote