Relocation of Aviation Section to Don Muang
As aviation in Thailand developed, Sra prathoom
Race Course was deemed too small and inconvenient. The government
therefore decided to move the airfield to it permanent site which
was Don Muang, for its size and location more suitable.
Thus, in early 1914, the Army supply Department
began constrution of hangars, airfields and housing as well as
all neccesary facilities. After completion all these facilities
were transfered to Lieutenant Colonel Phraya Chalerm Arkas for
use as the new home of the Aviation Unit. The relocation of the
Aviation Unit was completed and began operation on 17 March 1914.

The First Visit of his Majesty
King Vajiravudh
On 2 December 1916, His Majesty the King Vajiravudh
graciously visited the Army Air Division. His Majesty spent time
there to view the air demonstration and toured of the maintenence
facilities and the Flying Training School. Before retuning to
Bangkok, His Majesty expressed his appreciation through General
Prince Burachartra, Engineer Adjutant, saying :
"Today I have witnessed the remarkable
progress of our aviation history. A universally accepted fact
is that aviation is one area of technology that requires exceptional
ability. To observe that this undertaking has been carried out
entirely by Thais, without foreign assistance whatsoever, is a
source of utmost pride"

A Siammese student pilot in a Nieuport
10, Istres, September 1918
( National Archives of Thailand No.8775 )
The Combat Exercise in 1916
The Ministry of Defence order dated
19 March 1918 created the "Army Air Division" which had the following
units under its command.