... This radical Army bomber design with canards and twin tailbooms in early pre-WW II markings is the
Martin model 189 , designs No.4 , dated Jan.23,1940 and shows a strong family resemblence to the model 179 , better known as the B-26 Marauder.
Wingspan of the 189-4 is 73ft.8in....
So far :"Designers' Dreams" by David Ostrowski in: Skyways No.37 of Jan.1996.