Minimum radius for gas-electrics (doodle bugs)

[angiek]

Good afternoon all.
What is the minimum radius turn I can use for these cars?
Thank you.

[ACY]

Assuming you are referring to the HO version,  the trailer coach has a suggested mminimum radius of 22 inches, if you just want to run the doodlebug without the trailer coach you can run it on 18" radius but it looks terrible and has trouble with S curves where the radius is not at least 22 inches.

[angiek]

Thanks for the quick response.