XAJ-1
Prototype with two 2,300 hp (1,715 kW) Pratt & Whitney R-2800-44 radial engines and one Allison J33-A-10 turbojet; three built.

AJ-1 (A-2A)
Initial production version with two 2,400 hp (1,790 kW) R-2800-44W radial engines and one J33-A-10 turbojet; 55 built, survivors redesignated A-2A in 1962.

AJ-2 (A-2B)
Updated production version with two 2,500 hp (1,864 kW) R-2800-48 radial engines and one J33-A-10, taller tailfin, slightly longer fuselage, increased fuel capacity; 55 built, survivors redesignated A-2B in 1962.

AJ-2P
Photo-reconnaissance version of the AJ-2 with array of cameras; 30 built.

NA-146
Company designation for three prototypes delivered to the USN as XAJ-1.

NA-155
Development of the XAJ-1; mockup only, not built.

NA-156
Production variant delivered to the USN as AJ-1; 12 built.

NA-160
Production variant delivered to the USN as AJ-1; 28 built.

NA-169
Production variant delivered to the USN as AJ-1; 15 built.

NA-175
Photo-reconnaissance variant delivered to the USN as AJ-2P; 23 built.

NA-183
Photo-reconnaissance variant delivered to the USN as AJ-2P; 7 built.

NA-184
Improved production variant delivered to the USN as AJ-2; 55 built.

XSSM-N-4 Taurus
Proposed unmanned variant as a surface-to-surface missile.
Cancelled in 1948, none built.
XAJ-1
Prototype with two 2,300 hp (1,715 kW) Pratt & Whitney R-2800-44 radial engines and one Allison J33-A-10 turbojet; three built.
AJ-1 (A-2A)
Initial production version with two 2,400 hp (1,790 kW) R-2800-44W radial engines and one J33-A-10 turbojet; 55 built, survivors redesignated A-2A in 1962.
AJ-2 (A-2B)
Updated production version with two 2,500 hp (1,864 kW) R-2800-48 radial engines and one J33-A-10, taller tailfin, slightly longer fuselage, increased fuel capacity; 55 built, survivors redesignated A-2B in 1962.
AJ-2P
Photo-reconnaissance version of the AJ-2 with array of cameras; 30 built.
NA-146
Company designation for three prototypes delivered to the USN as XAJ-1.
NA-155
Development of the XAJ-1; mockup only, not built.
NA-156
Production variant delivered to the USN as AJ-1; 12 built.
NA-160
Production variant delivered to the USN as AJ-1; 28 built.
NA-169
Production variant delivered to the USN as AJ-1; 15 built.
NA-175
Photo-reconnaissance variant delivered to the USN as AJ-2P; 23 built.
NA-183
Photo-reconnaissance variant delivered to the USN as AJ-2P; 7 built.
NA-184
Improved production variant delivered to the USN as AJ-2; 55 built.
XSSM-N-4 Taurus
Proposed unmanned variant as a surface-to-surface missile. Cancelled in 1948, none built.
North American AJ Savage