Duh! [X(] You're right of course, the R-2600 is a Wright and not a P&W. My sources state that the airplane, as restored by Deimert, was fitted with an R-2600. However, if you look at the airplane as it is on display now it appears that the cowl has changed since the Navy took ownership. The 2600 won't fit in the original cowl so Deimert used a larger one, I think from a B-25. It looks like it now has a more stock looking cowl on it so the Navy probably jerked the R-2600 out and stuck in something else to fill up the hole, possibly an 1830.