Oops... Edit 2, since I can't edit this anymore. R7 has not flown over 3500 flights in 60 years, it's flown ~1600 flights. 749 on the model retired in 2011.

Oops... Edit 2, since I can't edit this anymore. R7 has not flown over 3500 flights in 60 years, it's flown ~1600 flights. 749 on the model retired in 2011. http://astronautix.com/lvs/soya511u.htm http://astronautix.com/lvs/soya511u.htm