| Navaid Facility ID: | TOI |
| Official Navaid Facility ID: | TOI |
| Navaid Facility Type: | NDB |
| Navaid Name: | Blood |
| City: | TROY |
| State: | ALABAMA |
| FAA Region: | |
| Latitude: | 31-49-50.872N (31.8308) |
| Longitude: | 086-06-21.424W (-86.106) |
| Lat/Long Survey Accuracy: | NOS |
| Owner: | US ARMY |
| Operator: | US ARMY |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | MHW |
| Hours of Operation: | 24 |
| Magnetic Variance: | 4.2 W as of 10/17/2024 |
| ARTCC High Altitude ID (Name): | ZTL (ATLANTA) |
| ARTCC Low Altitude ID (Name): | ZTL (ATLANTA) |
| Navaid ID | Navaid Facility Type | Holding Patterns |
|---|---|---|
| TOI | NDB | BLOOD NDB*AL, Pattern #: 1 BLOOD NDB*AL*K7, Pattern #: 2 |