# Raab-Katzenstein KL.1 Schwalbe

> German two-seat biplane

**Wikidata**: [Q2124775](https://www.wikidata.org/wiki/Q2124775)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Raab-Katzenstein_KL.1_Schwalbe)  
**Source**: https://4ort.xyz/entity/raab-katzenstein-kl-1-schwalbe