The Loire 102 was designed to operate as a mailplane on the South Atlantic route between West Africa and Brazil.

It was a flying boat with a two step hull on top was a superstructure with a control cabin and crew compartments.

In the forward hull was a cabin for four passengers, and to the rear were holds for mail, baggage and other cargo.

It originally had twin vertical tail surfaces but these were replaced with a single large fin and rudder.

The aircraft had severe vibration problems which could not be fixed and Bretagne was scrapped in 1938 without going into service.