Slow idle:
https://www.youtube.com/watch?v=R_IuK9L6wc4
https://www.youtube.com/watch?v=xcdlgkyE9hc
Even the little vertical engines L and M.
https://www.youtube.com/watch?v=4TKrElLqp7o
Bruce
It is like the Huey from years ago. We know what it is in seconds. New sounds sound all the same.
Al