F-101A
initial production fighter bomber, 77 produced.

NF-101A
one F-101A used by General Electric for testing of the General Electric J79 engine.

YRF-101A
two F-101As built as prototype reconnaissance models.

RF-101A
first reconnaissance version, 35 built.

F-101B
two-seat interceptor, 479 built.

CF-101B
112 F-101Bs transferred to Royal Canadian Air Force (RCAF).

RF-101B
22 ex-RCAF CF-101B modified for reconnaissance use.

TF-101B
dual-control trainer version of F-101B, redesignated F-101F, 79 built.

EF-101B
single F-101B converted for use as a radar target and leased to Canada.

NF-101B
F-101B prototype based on the F-101A airframe; the second prototype was built with a different nose.

F-101C
improved fighter-bomber, 47 built.

RF-101C
reconnaissance version of F-101C airframe, 166 built.

F-101D
proposed version with General Electric J79 engines, not built.

F-101E
another J79 proposal, not built.

F-101F
dual-control trainer version of F-101B; 79 redesignated TF-101Bs plus 152 converted F-101B.

CF-101F
RCAF designation for 20 TF-101B/F-101F dual-control aircraft.

TF-101F
24 dual-control versions of F-101B, redesignated F-101F (these are included in the -F total).

RF-101G
29 F-101As converted for ANG reconnaissance.

RF-101H
32 F-101Cs converted for reconnaissance use.