Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
electromechanical siren
|
| gptkbp:audio |
up to 135 dB
|
| gptkbp:countryOfOrigin |
gptkb:United_States
|
| gptkbp:discontinued |
1990
|
| gptkbp:hasModel |
Thunderbolt 1000
Thunderbolt 1000T Thunderbolt 1003 |
| https://www.w3.org/2000/01/rdf-schema#label |
Thunderbolt siren
|
| gptkbp:introduced |
1949
|
| gptkbp:manufacturer |
gptkb:Federal_Signal_Corporation
|
| gptkbp:notableFeature |
rotating horn
compressor-driven |
| gptkbp:powerSource |
electric motor
|
| gptkbp:rotating |
yes
|
| gptkbp:usedFor |
civil defense
tornado warning air raid warning |
| gptkbp:bfsParent |
gptkb:Federal_Signal_Corporation
|
| gptkbp:bfsLayer |
6
|