The nose of a He 177A-3/R1. The weapons in the tray under the cockpit and the turret behind the cockpit are remote-controlled, but there is also a manually aimed MG 81, pointed through the small circular opening in the cockpit glazing.
Lockheed P-38 Lightning
The Bell P-39 Airacobra was one of the principal American fighter aircraft in service at the start of World War II. Description from fightercontrol.co.uk. I searched for this on bing.com/images