# U-509

> German world war II submarine

**Wikidata**: [Q2000220](https://www.wikidata.org/wiki/Q2000220)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/German_submarine_U-509)  
**Source**: https://4ort.xyz/entity/u-509


## References

1. [Source](https://uboat.net/boats/u509.htm)
2. Freebase Data Dumps. 2013
3. [Source](http://www.ubootarchiv.de/ubootwiki/index.php/Wolf_Ackermann)
4. Die deutschen U-Boot-Kommandanten (1 ed.)