# observation balloon

> aeronautical balloon used for reconnaissance or espionage

**Wikidata**: [Q542056](https://www.wikidata.org/wiki/Q542056)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Observation_balloon)  
**Source**: https://4ort.xyz/entity/observation-balloon


## References

1. Freebase Data Dumps. 2013