▁as ▁an ▁air ways ▁aid ▁checking ▁duties . ▁V C - 1 3 1 G ▁C - 1 3 1 G ▁used ▁as ▁a ▁staff ▁transport . ▁C - 1 3 1 H ▁Other ▁models ▁converted ▁to ▁Model ▁ 5 8 0 ▁tur b op rop ▁standards . ▁NC - 1 3 1 H ▁One ▁conversion ▁with ▁an ▁extended ▁nose ▁incorpor ating ▁a ▁separate ▁co ck pit ▁as ▁a ▁Total ▁In - F light ▁Sim ulator . ▁This ▁aircraft ▁was ▁transferred ▁to ▁the ▁National ▁Museum ▁of ▁the ▁United ▁States ▁Air ▁Force ▁at ▁Wright - P atter son ▁A FB , ▁Ohio ▁on ▁November ▁ 7 , ▁ 2 0 0 8 ▁R 4 Y - 1 ▁United ▁States ▁Navy ▁version ▁of ▁the ▁Model ▁ 3 4 0 ▁with ▁ 4 4 ▁passenger ▁seats , ▁red es ign ated ▁C - 1 3 1 F ▁in ▁ 1 9 6 2 , ▁ 3 6 ▁built . ▁R 4 Y - 1 Z ▁United ▁States ▁Navy ▁staff ▁trans ports , ▁red es ign ated ▁V C - 1 3 1 F ▁in ▁ 1 9 6 2 , ▁one ▁built ▁and ▁convers ions ▁from ▁R 4 Y - 1 . ▁R 4 Y - 2 ▁Two ▁C - 1 3 1 Es ▁transferred ▁to ▁the ▁United ▁States ▁Navy , ▁red es ign ated ▁C - 1 3 1 G ▁in ▁ 1 9 6 2 , ▁an ▁additional ▁ 1 3 ▁cancel led . ▁R 4 Y - 2 Q ▁Project ed ▁rad ar