Type Record · As of May 3, 2026
THORP T-18
Fixed Wing Single Engine · LYCOMING 0-320 SERIES
Registered
26
Year Range
1964–1983
NTSB Events
6
Airworthiness Directives
0
Aircraft Resources
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered THORP T-18 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- CO 15.4% 4
- CA 15.4% 4
- FL 11.5% 3
- IL 11.5% 3
- TX 7.7% 2
- OK 3.8% 1
- PA 3.8% 1
- OR 3.8% 1
- WA 3.8% 1
- AL 3.8% 1
+5 more states
By Decade of Manufacture
- 1960s 15.4% 4
- 1970s 57.7% 15
- 1980s 3.8% 1
- Unknown 23.1% 6
02 / NTSB Records
Events involving THORP T-18 aircraft
6 event(s) on file. Showing the most recent 6.
-
Nov 6, 2015
N1488Independence, Oregon
NTSB Docket → -
Sep 1, 1994
N2911KENOSHA, Wisconsin
NTSB Docket → -
Sep 10, 1978
N18ZN.LITTLE ROCK, Arkansas
NTSB Docket → -
Jul 23, 1978
N2911KENOSHA, Wisconsin Minor
NTSB Docket → -
May 28, 1973
N2721OZARK, Missouri
NTSB Docket → -
May 21, 1967
N4083BLONE PINE, California
NTSB Docket →
02c / Academic Research
Scholarly work mentioning THORP T-18
Papers and reports across NASA, NTSB, FAA CAMI, AOPA ASI, Embry-Riddle, arXiv, and the broader academic graph that mention this airframe. Title or keyword match — drill into each for full abstract + author list + PDF link.
Browse the full corpus — academia portal ↗
03 / Airworthiness Directives
FAA directives applicable to THORP T-18
No matching airworthiness directives are on file for this make and model in the Federal Register.
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for THORP T-18
Advisory Circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 26 registered N-numbers
Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N1118M | OK | 1970 | · | Look up ↗ |
| N11DC | CO | — | · | Look up ↗ |
| N12055 | PA | 1974 | · | Look up ↗ |
| N1488 | OR | — | ● | Look up ↗ |
| N18JF | WA | 1970 | · | Look up ↗ |
| N18JT | CA | 1972 | · | Look up ↗ |
| N18Z | AL | 1971 | ● | Look up ↗ |
| N198NF | FL | — | · | Look up ↗ |
| N2287C | AZ | 1967 | · | Look up ↗ |
| N249R | MO | 1972 | · | Look up ↗ |
| N25002 | TX | 1972 | · | Look up ↗ |
| N262PE | ID | 1971 | · | Look up ↗ |
| N2721 | TX | — | ● | Look up ↗ |
| N2911 | IL | 1968 | ● | Look up ↗ |
| N3098 | CO | 1972 | · | Look up ↗ |
| N312LL | CA | 1964 | · | Look up ↗ |
| N338Q | CA | 1971 | · | Look up ↗ |
| N380G | CO | 1972 | · | Look up ↗ |
| N4083B | CA | — | ● | Look up ↗ |
| N427H | FL | — | · | Look up ↗ |
| N4588 | IL | 1973 | · | Look up ↗ |
| N4784G | CO | 1973 | · | Look up ↗ |
| N5661 | TN | 1971 | · | Look up ↗ |
| N7199 | MT | 1971 | · | Look up ↗ |
| N76KR | FL | 1983 | · | Look up ↗ |
| N77AK | IL | 1969 | · | Look up ↗ |
Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)
05 / Sources & Methodology
Every count traces back to a primary US-government source
- FAA Aircraft Registry →
Refreshed Apr 27, 2026
Available
- NTSB CAROL →
Refreshed Apr 27, 2026
Available
- Federal Register (FAA Airworthiness Directives) →
Refreshed Apr 27, 2026
Available
We render counts and lists as the agency publishes them. Read the methodology →