McDonnell TD2D Katydid
| TD2D Katydid | |
|---|---|
| McDonnell KDD-1 on display at the Steven F. Udvar-Hazy Center | |
| Role | Target drone |
| National origin | United States |
| Manufacturer | McDonnell Aircraft |
| First flight | 1942 |
| Primary user | United States Navy |
The McDonnell TD2D Katydid (company designation McDonnell Model 31) is a pulsejet-powered American target drone produced by McDonnell Aircraft that entered service with the United States Navy in 1942, and continued in use until the late 1940s.