Thailand. (Royal Thai Air Force in World War One). 1913. Photographic card produced by 'First Lieutenant Thip Ketudat' of the Royal Siamese Aeronautical Service' showing 'The three Thai Officers 'Major Luang Sakdisulyauvdh, Captain Luang Arvudsikitkorn and First Lieutenant Thip Ketudat' on their return to Siam inspecting an airfield near Warsaw'.
The Royal Siamese Aeronautical Service was founded on the 18th January 1911 as the military aviation section of the Army. At this date the Siamese Ministry of Defense decided to send a delegation of three officers to France for the study of flying and maintenance of airplanes.
All three got their pilots licenses in France after comprehensive training at Avord. In November 1913 the three officers returned to Siam with four "Breguet 111" and four "Nieuport" planes for assembly at Don Muang.
On 23rd March 1914 the 'Royal Siamese Aeronautical Service' was renamed Royal Siamese Flying Corps' and placed under control of the 'Royal Siamese Engineers Corps.'
In January 1915 work began on a sports filed at Don Muang, Rangsit and in May 1915 the first of the "Breguets' having been assembled was flown.