More on the RTAF Museum can be found on; http://www.thai-aviation.net/W&R%20-%20RTAF%20Museum.htm
More aviation museums in Thailand can be found on http://www.thai-aviation.net Scroll down and search under the heading `Wrecks and Relics´. If you’re travelling to Chiang Mai, I recommend a visit to the `Tango Museum´.
Regards,
Jan