Robertson George H THORP T-18
Aircraft Manufacturer: Robertson George H
Model: THORP T-18
Aircraft Details
| Manufacturer | Robertson George H |
|---|---|
| Manufacturer Serial Number | 05602E0 |
| Model | THORP T-18 |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Aircraft Type | Fixed wing single engine |
| Weight | Class 1 (Up to 12,499 lbs gross take off weight) |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Number of Seats | 2 seats |
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Safety Analysis
Composition of NTSB accident records for this model in general-aviation operations (FAR Part 91 and 137), based on NTSB data as of May 1, 2026. It's a breakdown of recorded accidents rather than a safety rating, and types with significant non-GA operation (such as Part 135) may be under-represented.
Accidents are identity-confirmed against FAA registration records (two independent sources).
1 exact, 0 recovered, 0 provisional
MethodologyTotal recorded general-aviation accidents within the analyzed period.
No fatalities recorded.
Active aircraft fleet size contributing to the exposure data.
514
Aircraft-years of FAA registration exposure (2008–present).
Accidents by year
Recorded NTSB general-aviation accidents per calendar year, derived directly from the NTSB accident database. Each bar shows the accidents that occurred in that year. Methodology →
Phase of flight
Which phase of flight each accident occurred in, as coded by the NTSB. Most accidents happen in the phases where most flying time is concentrated, so this isn't a measure of which phase is most dangerous.
Finding category
Top-level NTSB cause category, from the coded investigation findings. An accident often has more than one finding, so totals here can exceed the recorded accident count.
Injury severity
NTSB classification of the worst injury in each accident: None, Minor, Serious, or Fatal. Each accident counts in exactly one severity.
Recorded Accidents
All 12 recorded NTSB general-aviation accidents for this model, most recent first.
| Date | Location | Tail | Damage | Highest injury | Phase of flight | Finding categories |
|---|---|---|---|---|---|---|
| Del Norte, CO | N18NH | Substantial | Minor | Landing | Personnel issues, Environmental issues, Aircraft | |
| San Antonio, TX | N78DW | Substantial | Minor | Initial climb | Aircraft, Environmental issues | |
| Indianapolis, IN | N763LG | Substantial | Minor | Landing | Aircraft, Personnel issues, Environmental issues | |
| Troy, MO | N600HH | Substantial | Serious | Approach | Aircraft, Personnel issues | |
| San Rafael, CA | N25VP | Substantial | None | Takeoff | Personnel issues | |
| Pahokee, FL | N118GG | Substantial | Fatal | Enroute | Personnel issues, Aircraft | |
| Panama City, FL | N407HK | Substantial | Serious | Landing | Personnel issues, Environmental issues | |
| Howell, MI | N8AL | Substantial | Fatal | Approach | Personnel issues, Aircraft | |
| Tehachapi, CA | N851LT | Substantial | Fatal | Enroute | Aircraft, Personnel issues, Environmental issues | |
| Fredericksburg, TX | N86TJ | Substantial | None | Approach | Aircraft | |
| Lake Como, FL | N33TB | Substantial | Minor | Landing | Personnel issues, Environmental issues | |
| Palm Springs, CA | N118CK | Substantial | None | Landing | Aircraft |