Douglas D-509 & D-537 ?

[hesham]

Hi,

In old Arabic magazine,they spoke about Douglas D-509 and
D-537 as a stretch versions of Douglas DC-4,could accommodated
86 passenger,but I am not sure they right or not and I don't
know if those designs were actually built or not,
has anyone more Info about them ?.

 

[Stargazer]

The DC-4-509 could accomodate 86 passengers, but the -537 was a civil freighter version.

 

[hesham]

My be your are right my dear Stargazer.