These reconnaissance airplanes featured a modified C-model vertical fins with air intakes which were used to cool the drag chute compartment and eliminated the five minute limit on using the afterburner in the A model. They were routinely used for photographic recon flights over the eastern coast of mainland China as well as for covert spy flights. The People's Liberation Army's Air Force claimed to have shot down two of them and the RF-101 were in active role with the ROCAF until the late 1970s.
Sources:
1. https://en.wikipedia.org/wiki/McDonnell_F-101_Voodoo
2. Salamander Books - The Complete Book of Fighters
