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Prajadhipok
Role	FighterType of aircraft
Manufacturer	Royal Siamese Air Force Manufacturing Division
Designer	Lt. Colonel Luang Neramit Baijayonta
First flight	1929
Introduction	1929
Status	retired
Primary user	Air Force Directorate, Royal Siamese Army, Royal Thai Air Force
Number built	1

The Prajadhipok (Thai: ประชาธิปก), also known as Fighter Type 5, was a Siamese single-seat biplane fighter. It was the second indigenous Siamese aircraft design and the first fighter aircraft.

Lieutenant Colonel Luang Neramit Baijayonta designed and oversaw construction of the aircraft in 1929, which was named Prajadhipok (Democrat) for the then reigning monarch King Prajadhipok (Rama VII). It was the second aircraft designed and built in Siam and the first Siamese designed and built fighter, designated Fighter Type 5. However it remained experimental and production does not seem to have ensued, possibly due to the death of the designer shortly after the first flight. The aircraft was still in service at the start of World War II.

Specifications (Prajadhipok Fighter type 5.)

General characteristics

• Crew: 1
• Powerplant: 1 × Curtiss water-cooled inline engine, 257 kW (345 hp)

References

Citations

1. Thornburg, www.worldairforces.com, 2006
2. Forsgren, aeroflight 2004
3. Joseph, 2012, page 271

Bibliography

• Forsgren, Jan. "Aircraft Production in Thailand: Part 2". aeroflight. 20 November 2004. Retrieved 22 February 2011.
• Joseph, Frank (2012). The Axis air forces : flying in support of the German Luftwaffe. Santa Barbara, California: PRAEGER. p. 271. ISBN 978-0-313-39590-1.
• Thornburg, Chris (3 December 2006). "World Air Forces - Historical Listings Thailand (THL)". www.worldairforces.com. Waipahu, Hawaii.

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