Registry / Piper / PA-18-135 / N20821

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N20821 V

Piper PA-18-135 · 1954 · Decatur, MI

This aircraft — FAA registration facts

N20821 is a 1954 Piper PA-18-135 (serial 183547), registered to Danielson Robert Dba Conventional Air (co-owner) in Decatur, MI. Its FAA registration is recorded as v and expires April 2030; the airworthiness certificate dates from October 2002 (23 years ago). It carries a Lycoming 0-290 SERIES engine rated at 140 hp, the engine on 63% of registered Piper PA-18-135s. Its Mode-S transponder broadcasts the ICAO 24-bit address A1B273. It is one of 220 Piper PA-18-135 aircraft on the FAA registry.

Registered owner
Danielson Robert Dba Conventional Air
Owner type
Co-Owner
Based in
Decatur, MI
Serial number
183547
Year built
1954 · 72 yrs old
Airworthiness class
1NU
FAA status
V
Mode-S / ICAO24
A1B273 · 50331163 octal
Certificate issued
Apr 18, 2014
Airworthiness date
Oct 15, 2002
Last FAA activity
Oct 20, 2023
Registration expires
Apr 30, 2030
FAA region
Central

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

Engine on this aircraft

Engine
Lycoming 0-290 SERIES
Engine type
4-Cycle Piston
Rated power
140 hp
Power per seat
70 hp
FAA engine code
41506

120 of the 192 registered Piper PA-18-135 carry this engine (63%), across 13 engine variants on the type.

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

Runway requirement (estimate)

A Piper PA-18-135 needs roughly 900 ft of runway for takeoff at sea level (takeoff distance ~775 ft plus a 15% safety margin). Check it against a destination airport →

Planning estimate for takeoff only — excludes landing distance, wind, density altitude, and contamination. Verify against the aircraft's POH/AFM.

Community facts about N20821

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Flight history & live tracking

ICAO24: a1b273
No flight data on file yet for N20821.
Queries adsb.lol — works only if N20821 is broadcasting ADS-B right now. Daily sweep at 04:43 MST · external trackers above for guaranteed live data.
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Aircraft Type — ACFTREF 7101820

Piper PA-18-135
Engines: 1
Type: piston
Seats: 2
Cruise: 84 KTAS
Ceiling: 19,000 ft
MTOW: 1,750 lbs
Category: Standard

Engine — CODE 41506

Manufacturer: Lycoming
Model: 0-290 SERIES
Type: 4-Cycle Piston
Horsepower: 140 HP

FAA Registration Record

N-Number: N20821
Serial Number: 183547
Year Manufactured: 1954
ACFTREF Code: 7101820
Engine Code: 41506
Status: V (V)
Certification: 1NU
Type Aircraft: Fixed Wing Single Engine (4)
Type Engine: Reciprocating (Piston) (1)
Source: master

Documents & resources

Commonly available reference sources for the Piper PA-18-135. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

View the Piper PA-18-135 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.

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Transponder / ADS-B

Mode S (octal): 50331163
ICAO 24-bit (hex): A1B273

Registrant

Danielson Robert Dba Conventional Air
Co-Owner
508 Greenbriar Ter
Decatur, MI, 490451324
FAA Region: Central
Additional Names
SK ENTERPRIZES

Key Dates

Certificate Issued Apr 18, 2014
Airworthiness Oct 15, 2002
Expiration Apr 30, 2030
Last Activity Oct 20, 2023
Data as of Sep 7, 2026

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