Sounds entirely possible. I was in Rangoon in '64 and the facilities were best described as 'basic'. We were there for a month and the standard of living was notably poor. There would have been little progress in the subsequent decade.Not directly aviation but our hire car was a VERY second hand Humber Hawk. The only fuel available was 80 octane 'pool' petrol and that made a combination which 'pinked' when accelerating ... downhill!!! All that being said, the people were absolutely super and the country, especially in the HeHo(sp?) area quite stunningly beautiful.