# Finney Thorp T-18

- Type: Aircraft model (FAA registry)
- Registry code: 89510US
- Manufacturer (registry): FINNEY THORP
- Model: T-18
- Aircraft type: Fixed wing single engine
- Category: Airplane
- Engines: 1 · Reciprocating
- Seats: 2
- Weight class: Up to 12,499 lb
- Cruise speed: 97 mph
- Certification: Not type certificated
- Registered aircraft: 0
- Page: https://openairdocs.org/model/finney-thorp-t-18

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft

None registered with this model now.

## NTSB investigations (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR10LA429](https://openairdocs.org/ntsb/WPR10LA429), Aug 26, 2010: Finney Thorp T-18 (N467JF), Willcox, AZ, substantial damage, 2 fatal. Probable cause: The pilot’s failure to maintain sufficient airspeed during a steep turn and at a low altitude in the traffic pattern, which resulted in an aerodynamic stall.
- [NTSB LAX07CA009](https://openairdocs.org/ntsb/LAX07CA009), Oct 13, 2006: Finney Thorp T-18 (N467JF), San Diego, CA, substantial damage. Probable cause: the pilot's inadequate compensation for the crosswind conditions and failure to maintain directional control during landing.

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20100826042249A](https://openairdocs.org/incident/20100826042249A), Aug 26, 2010: Finney Thor T-18 (N467JF), Wilcox, AZ, Substantial damage, 2 fatal. On August 26, 2010, at approximately 09:20 PDT an experimental amateur built 1970 Finney thorp T-18, N467JF, serial number 467 was substantially damaged when…
- [Accident 20061013029299A](https://openairdocs.org/incident/20061013029299A), Oct 13, 2006: Amtr T18 (N467JF), San Diego, CA, Substantial damage. (-23) The pilot [privacy data omitted] was landing on runway 28L at San Diego Montgomery Field Airport (kmyf). A special weather observation made by myf ATC at…

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Thorp T-18](https://openairdocs.org/model/thorp-t-18): 4 registered aircraft, registry code 89510T7
- [Thorp T-18](https://openairdocs.org/model/thorp-t-18): 3 registered aircraft, registry code 89510T8
- [Thorp T-18](https://openairdocs.org/model/thorp-t-18): 2 registered aircraft, registry code 89510T3
- [Thorp T-18](https://openairdocs.org/model/thorp-t-18): 2 registered aircraft, registry code 89510TC
- [Thorp T-18](https://openairdocs.org/model/thorp-t-18): 2 registered aircraft, registry code 89510TD
- [Thorp T-18](https://openairdocs.org/model/thorp-t-18): 2 registered aircraft, registry code 89510TF
- [Thorp T-18](https://openairdocs.org/model/thorp-t-18): 2 registered aircraft, registry code 89510UB
- [Ranck Amos D T-18](https://openairdocs.org/model/ranck-amos-d-t-18): 1 registered aircraft, registry code 056076Q
- [Parker Don T-18](https://openairdocs.org/model/parker-don-t-18): 1 registered aircraft, registry code 056162H
- [Henning Ray C T-18](https://openairdocs.org/model/henning-ray-c-t-18): 1 registered aircraft, registry code 056245D
- [Johnston Coyt E T-18](https://openairdocs.org/model/johnston-coyt-e-t-18): 1 registered aircraft, registry code 05624BU
- [Eversmeyer Larry D T-18](https://openairdocs.org/model/eversmeyer-larry-d-t-18): 1 registered aircraft, registry code 05624ZP

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