1942 XPB2M-1R Mars, BuAer 1520
four 2200hp Wright R-3350
In 1938 the Navy ordered a single prototype Martin Model 170 as an experimental patrol bomber, XPB2M-1.
Navy redesignated this one and only XPB2M-1 Mars as a transport, XPB2M-1R.
The name "Mars" would be used again in 1945 for a similar aircraft, Martin Model 170A, the JRM-1
This photo was taken in 1944. The person in the photo is Ken Windson
Aeroplane Photo Supply No. 2709
note, two engines feathered