You will have to go to either trto or FTo to do a conversion
Piston to piston is normally 2 hours plus test
Piston to turbine is 5 hours plus test
Turbine to turbine is 2 hours plus test
First twin turbine is 8 hours
The trto must have the type on its disposition to teach that type. For instance mine is only for Hughes 500 oh6 and Hughes 300. Have fun
