DATAFILE
The Royal Thai Air Force itself developed the RTAF-4 Chanthra, a Continental-powered modification. Now retired, this one is preserved in the RTAF Museum at Don Mueang.
ADRIAN M. BALCH
Worldwide there are in excess of 400 Chipmunks surviving, of which it is estimated that approximately 80 per cent are airworthy or close to being so. This total includes those in museums, private hands and what few earn their living in any sense.
