Compare
Piper PA-18-150 Super Cub vs Aviat A-1B
The two side by side, from the FAA registry, the FAA's Airworthiness Directives and Service Difficulty Reports, and the NTSB's accident database. Each has a full guide: Piper PA-18-150 Super Cub, Aviat A-1B.
Where they differ
- The Aviat A-1B fleet is younger: half of those registered were built by 2002, against 1970 for the Piper PA-18-150.
- There are more Piper PA-18-150s to choose from: 2,090 registered against 359.
- Most Piper PA-18-150s have the Lycoming O-320; most Aviat A-1Bs the Lycoming O-360.
- The Aviat A-1B carries more airframe ADs with a repeat action, 1 against 0: inspections that come back for as long as the AD applies.
- Mechanics report the Piper PA-18-150's elevator structure most, and the Aviat A-1B's propeller blade section.
Side by side
| Piper PA-18-150 Super Cub | Aviat A-1B | |
|---|---|---|
| Registered in the US | 2,090 | 359 |
| Built | 1953 to 2001 | 1998 to 2007 |
| Half built by | 1970 | 2002 |
| Seats | 2 | 2 |
| Most common engine | Lycoming O-320 | Lycoming O-360 |
| Typical cruise fuel burn | 8 gal/hr | Not set |
| Engine overhaul intervalThe engine maker's published hours between overhauls. | 2,000 hr | 2,000 hr |
| Current airframe ADs | 14 | 1 |
| Airframe ADs with a repeat action | 0 | 1 |
| Current ADs on the main engine | 24 | 24 |
| Service Difficulty ReportsSince the year shown in each guide; per 1,000 registered today. | 3 (1.4 per 1,000) | 7 (19.5 per 1,000) |
| Most-reported system | Elevator Structure | Propeller Blade Section |
| Accidents since 2008Per 1,000 registered today, not per hour flown: a training fleet flies far more than a private one. | 256 (122.5 per 1,000) | 44 (122.6 per 1,000) |
| Fatal accidents since 2008 | 20 | 1 |
| Most common accident | Loss of control on ground | Loss of control on ground |
Report and accident counts are not rates: nobody publishes the hours each model flies, and a training fleet flies far more than a private one. Fuel burn is a typical cruise figure; the engine interval is its maker's published figure for the usual engine.
The Piper PA-18-150's repeat-action ADs
No current airframe AD mentions a repeat action.
Every AD for the Piper PA-18-150The Aviat A-1B's repeat-action ADs
- 2020-16-06Requires repetitive inspections of the forward horizontal stabilizer support assembly and the rear horizontal stabilizer support tube and reporting information to the FAA
Questions
- Which has more Airworthiness Directives, the Piper PA-18-150 or the Aviat A-1B?
- 14 current ADs name the Piper PA-18-150 airframe and 1 the Aviat A-1B; 0 and 1 of them have a repeat action.
- Which is newer, the Piper PA-18-150 or the Aviat A-1B?
- Half of the Piper PA-18-150s registered were built by 1970, half of the Aviat A-1Bs by 2002.
- How do the Piper PA-18-150 and Aviat A-1B accident records compare?
- 256 accidents since 2008 for the Piper PA-18-150 (20 fatal) against 44 for the Aviat A-1B (1 fatal), from fleets of 2,090 and 359. Counts, not rates per hour flown.