Originally Posted by
Self loading bear
I have read that the PH-CGB was converted from Convair 340 to Convair 440 spec. I do not know the date of that conversion nor do i know if you can see the difference.
Strictly speaking, a Convair 340 could not be converted to a Convair 440.
That said, Convair offered a Service Bulletin (340-144) which, if and when embodied, allowed 340s to be operated at Convair 440 weights and performance limitations.
However the aircraft remained technically a 340, in fact the KLM example pictured was registered as such throughout its career, up to the point where it was cancelled from the US register in 2012 after having served with KLM West Indies and COPA Panama (though it had actually been broken up in 1975).