This article is from the Vietnam FAQ, by Brian Ross, John R. Tegtmeier, Edwin E. Moise, Frank Vaughan, John Tegtmeier with numerous contributions by others.
All of the AC-130 gunships were based in Thailand, except for a very
short timeframe when the prototypes were being tested.
"The AC-119G started out & stayed in SVN, and were turned
over to the VNAF around 71, I think. The AC-119K squadron
was based in Thailand, but had detachments of up to 5
aircraft at Da Nang and Bien Hoa in South Vietnam. At the
latter place we mostly did Cambodia, which was quite a
different environment from the Trail proper, and also some
An Loc support during the Easter Offensive." [RH]
 
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