Compare aircraft models
Up to three models side by side. Everything here is true of every aircraft of the type, not of any one aircraft.
Choose models
The picker searches 839 models.
- PIPER PA-18-135 (L-21B)
Comparison
| PIPER PA-18-135 (L-21B) | |
|---|---|
| What it is | |
| Seats | 2 |
| Landing gear | taildragger |
| Engines | 1 |
| Engine | Lycoming O-290-D2 |
| Horsepower | 135 hp |
| Fuel | 100LL |
| Certification basis | CAR3 |
| Production start | 1954 |
| Production end | 1956 |
| Endorsements required | tailwheel |
| Performance | |
| Cruise speed | 95 KTAS |
| Range | 400 nm |
| Service ceiling | 16,000 ft |
| Climb rate | 900 ft/min |
| Stall speed (Vso) | 37 KCAS |
| Takeoff over 50 ft | — |
| Landing over 50 ft | — |
| Load and fuel | |
| Seats | 2 |
| Useful load | 600 lb |
| Full-fuel payload | 384 lb |
| Max takeoff weight | 1,500 lb |
| Empty weight | 900 lb |
| Usable fuel | 36 gal |
| Fuel burn at cruise | 7.6 gal/h |
| Cost of ownership | |
| Price, low | $70,000 |
| Price, high | $200,000 |
| Prices as of | 2026 |
| Engine TBO | 1,800 h |
| Overhaul cost, low | $26,000 |
| Overhaul cost, high | $36,000 |
| The fleet and its record | |
| Registered, all time | 2 |
| Active fleet | 1 |
| Median year built | 1956.0 |
| NTSB events, last 10 years | 0 |
| Fatal events, last 10 years | 0 |
| Events per 1,000 active, last 10 years | — |
| Personal-flying events per 1,000 active | — |
| Ownership transfers, last 24 months | 0 |
| Transfers per 100 active | — |
| Airworthiness directives | 0 |
| Directives, last 5 years | 0 |
| Rate confidence | none |
| Peer scores | |
| Peer class | Fixed wing single-engine, piston, 1 engine, 1-2 seats |
| Accident record1 | 3 of 10 |
| Severity2 | 8.2 of 10 |
| Access3 | 6.3 of 10 |
| Support4 | 8 of 10 |
| Liquidity5 | 2.4 of 10 |
| Overall (sum of the categories shown)6 | 27.9 out of 50 |
- Accident record: class median 29.1 · 174 models in class.
- Severity: class median 9.09.
- Access: class median 974.
- Support: class median 81.
- Liquidity: class median 20.47.
- Each of the five categories places the model within its peer class, from 0 (the worst of the class) to 10 (the best): a position among comparable models, not a grade. The overall score is the sum of the categories shown that are scored, out of 10 for each (50 when all five are); it is given only when at least 4 of the five are scored, and it can be set against another model's only when both are in the same peer class and scored on the same categories.