 In 1916, the first aircraft chronograph for the Swiss Air Force was created and laid the foundation for the company’s success as an aircraft instrument supplier.From 1936 – 1943, the company produced cockpit instrumentation for the Swiss Air Force.REVUE THOMMEN developed and supplied altimeters, airspeed indicators, vertical speed indicators, clocks, and the landing gear for the Swiss multifunction biplane EKW C-35.