Grumman C-2A Greyhound VRC-50 BuNo 155121

Grumman C-2A Greyhound BuNo 155121

Grumman C-2A Greyhound VRC-50 BuNo 155121

Grumman C-2A Greyhound BuNo 155121

Grumman C-2A Greyhound VRC-50 BuNo 155121

Grumman C-2A Greyhound BuNo 155121

I wounder why the same Grumman C-2A Greyhound received different side numbers in a short time difference. I have no idea why they were given with the specific number? Here we have BuNo 155121 of the VRC-50, both landing at Asugi with Side Number 404 and 407. Later it became 422, too. Could somebody bring light into this?

 

Grumman C-2A Greyhound VRC-50 BuNo 155121

Grumman C-2A Greyhound BuNo 155121

Grumman C-2A Greyhound BuNo 155121

 

Grumman C-2A Greyhound VRC-40 BuNo 155121

Grumman C-2A Greyhound BuNo 155121 now with the VRC-40 COD.