Following the grounding of the Comet 1, the Tu-104 became the first jet airliner to provide a sustained service and it was the only jet airliner in operation between 1956 and 1958 (when the Comet 4 and Boeing 707 entered service).
The Tu-104 became the first jet airliner. This was following the grounding of the Comet 1. This was to provide a sustained service. It was the only jet airliner in operation between 1956 and 1958 (when the Comet 4 entered service). This was following the grounding of the Comet 1. It was the only jet airliner in operation between 1956 and 1958 (when Boeing 707 entered service). This was following the grounding of the Comet 1.