| Posted by Jerry M. LaBoda on September 22, 2015 | |
The problem is that there were more than just 4. Budd built a total of 15 RDC-4s during their production run, in two phases.
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| Posted by Newtonville150 (John Reay) on September 22, 2015 | |
That was meant to be one of 14, which I got from the Wikipedia article.
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