oldfart
Elite Veteran
Location: Vancouver, Canada
| Piro rateThe piro rate will always be the function of the gyro/tail rotor set up. Believe me, when the mechanical set up is properly done, if you removed the gyro from the equation, you would find the Raven (and any other modern heli for that matter) would have a lightening fast piro rate. By inserting a gyro into the circuit, this now becomes a function of the set-up/adjustments of the gyro.
I am not that familiar with the JR460T gyro. Is it a HH/rate unit or only a rate unit?
In the rate mode piro rate can be adjusted to be faster by:
a) going to a higher RUDDER ATV (allows more throw to the servo so the gyro gain has less effect). If there is binding at the end points on the bench there will not be in the air. Once airborn the gyro starts doing its work and it takes away a lot of servo response so it will not do bind upstairs.
b) if you still want faster piros, then go to a longer servo arm (again, a mechanical adjustment of A)
c) finally you can decrease the gain (which I doubt you will have to do).
In HH mode
a) be sure to use a servo arm that does not bind at each end of travel or adjust (available on many HH gyros) the rudder throw as per the gyro instructions so that they do not overthrow into binding.
b) increase the RUDDER ATV's for the piro rate you desire.
With a HH gyro the these ATV settings will not increase the throw of the rudder servo but will tell the internal computer to allow a higher piro rate.
Phil |
