| Tail Number / N-Number | N18CU |
| Manufacturer | LATITUDE ENGINEERING LLC |
| Model | HQ-90B |
| Manufacturer's Serial Number | 013 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Not Type Certificated |
| Number of Seats | 0 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Number of Engines | 1 engine |
| Type of Registrant | Corporation |
| Owner Name | TRUSTEES OF COLUMBIA UNIV IN THE CITY OF NEW YORK |
| Street | 61 ROUTE 9W |
| City | PALISADES |
| State | NY |
| Zip Code | 10964-1707 |
| Region | Eastern |
| County | Rockland County |
| Country | US |
| Fractional Ownership | No |
| Certificate Issue Date | 2017-12-01 |
| Last Action Date | 2020-09-25 |
| Expiration Date | 2027-12-31 |
| Status | Valid Registration |
| Mode S Code | 50237230 |
| Mode S Code Hex | A13E98 |
Deregistered Aircraft 1 of 1. This aircraft was previously assigned the N-number N18CU.
| Tail Number / N-Number | N18CU |
| Manufacturer | CIRRUS DESIGN CORP |
| Model | SR20 |
| Year Built | 2011 |
| Manufacturer's Serial Number | 2095 |
| Aircraft Type | Fixed wing single engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 4 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | CONT MOTOR |
| Engine Model | IO-360-ES |
| Engine Type | Reciprocating |
| Number of Engines | 1 engine |
| Horsepower | 210 hp (157 kW) |
| Type of Registrant | Corporation |
| Owner Name | CIRRUS DESIGN CORP |
| Street | 4515 TAYLOR CIR |
| City | DULUTH |
| State | MN |
| Zip Code | 55811-1548 |
| County | Rockland County |
| Country | US |
| Airworthiness Classification | Standard |
| Airworthiness Date | 2011-07-14 |
| Certificate Issue Date | 2011-08-11 |
| Last Action Date | 2011-08-11 |
| Last Status | Valid Registration |
| Cancellation Date | 2011-12-20 |
| Exported To | CHINA PEOPLES REP |