In the ah6/mh6
all figures in feet per minute from onboard VSI
keyboard:
2000 up
1800 down
mapped to joystick buttons:
7000 up and down
If you map the ANALOG collective to buttons on the joystick you get still another set of figures
2200 up
1800 down
however if using the analog collective inputs for non analog buttons, after releasing either button the helicopter falls at a rate of 1200 feet per minute until a non analog collective input is pressed.
In the KA-60
all figures in meters per minute from VSI on board
keyboard
600 up
600 down
joystick digital
250 up
250 down
joystick analog (mapped to a button)
700 up
600 down
with a button release fall rate of 500 meters per minute