Lockheed PV-1 Ventura
The early success of the Lockheed Hudson resulted in the development of a more advanced design for the British, to be named the B-34. These first entered service in October 1942.

As aircraft were transferred between the Lend-Lease program, the USAAF, and the U.S. Navy, designations went from B-34 to R-37 to B-37 to PV-3. The Navy received it's first quantities in December 1942 as the PV-1 (Ventura).

RNZAF Venturas
The RNZAF operated 139 aircraft of this type - 82 PV-1 (NZ4501-82, NZ4606-39) and 57 B-34 (NZ4583-4605), although all were known as Venturas. The first aircraft arrived in 1943 as Hudson replacements. Eventually the aircraft were operated by No.s 1, 2, 3, 4, 8, & 9 BR Squadrons and No.1 (B) OTU. The bomber force was being wound down at the end of the war and at that time only three squadrons were operational. After WWII, No.2 Squadron operated 12 Venturas from Ohakea until June 1946 when they were withdrawn, to be replaced by the Hudson again.

PV-2 Harpoon
In June 1943 the Navy ordered a new version under the designation PV-2 and with the name Harpoon. This version had the wingspan increased by 9 feet, increased fuel capacity, greater fin and rudder area, and improved armament (five .50 cal forward firing machine guns in the nose, two 50 cal machine guns in both dorsal turret and ventral position, and up to four 1000 lb. bombs internally with two 1000 lb. bombs externally). The PV-2 served primarily in the Pacific theater, and was well-used until the end of the war.