Chinook heading SouthEast from here.

[Grumpy John]

Something I don't hear around these parts, Wang Plong,  is the sound of a heavy lift chopper.  Has been 40+ years since my last encounter, so my hearing memory is still good!  My guess is it had been to Phitsanulok AF Base and was enroute to Sattahip Navy Base........if it was connected to  Cobra gold 2020 it was probably going home.   

[tifino]

maybe they have Restored one?

[Grumpy John]

That list is 17 years old!  No Chinooks listed as currently flying on Wikipedia.

[Moonlover]

The Americans are certainly around right now. My wife's son is training with them down in Korat. We've a few photos back from him.

[tifino]

4 hours ago, Grumpy John said:

That list is 17 years old!  No Chinooks listed as currently flying on Wikipedia.

that is why I mentions 'restored' 

 

I know from the past of derelict military aircraft being 'restored' by military aviation techs (in their spare time) and actually flying it (think of similar better known Victor type scenario) before any Approvals are signed off. 

 

example:    

The aircraft still carried Malaysian registration for it's unofficial test flight

 

 

OP 'heard' it, so I wonder if it was flying under the cover of darkness?

[Grumpy John]

4 hours ago, tifino said:

that is why I mentions 'restored' 

 

I know from the past of derelict military aircraft being 'restored' by military aviation techs (in their spare time) and actually flying it (think of similar better known Victor type scenario) before any Approvals are signed off. 

 

example:    

The aircraft still carried Malaysian registration for it's unofficial test flight

 

 

OP 'heard' it, so I wonder if it was flying under the cover of darkness?

Was eyeballed as well as it flew over but at a distance only the underside and rear were visible.

[Thongkorn]

Spent some time in Ranong  a few years ago, The Thai Army was being entertained by  US rangers. They were using Chinooks.