Couzinet 70
| 70 Arc-en-Ciel | |
|---|---|
| General information | |
| Type | Long-range commercial monoplane | 
| Manufacturer | Société des Avions René Couzinet | 
| Primary user | Aéropostale | 
| History | |
| Manufactured | 3 | 
| Introduction date | May 1934 | 
| First flight | 11 February 1932 | 
The Couzinet 70 was a French three-engined commercial monoplane designed and built by Société des Avions René Couzinet.
The Couzinet 70 Arc-en-Ciel III ('Rainbow') was developed from the Couzinet 20 by René Couzinet. The Couzinet 70, which was larger than its predecessors, was developed originally as a mail plane for use of Aéropostale's South Atlantic service.
It was a low-wing monoplane that had a fixed tailwheel undercarriage and powered by three Hispano-Suiza 12Nb inline piston engines. The two wing mounted engines could be accessed mid-flight through tunnels in the wing. After route-proving in 1933, the aircraft was modified and re-designated as the Couzinet 71 and entered service with Aéropostale in May 1934.