No belt on this B&G. Motor's built into the end of the hydraulic
cylinder....all one unit. Take a look at:
http://www.bandg.co.uk/h2000solution...ilotdriveunits
Look down under the "new" rudder position sensor that straps to the
side of the type 1 ram drive. That's the unit wedged into the space
under the aft cabin bunks. We had a custom crank made for the rudder
post to mount it in the best position.
There is no "center" position to the linear position sensor. That's
why YOU tell the computer where center is in the commissioning setups.
You can change where "center" is by pressing a few buttons on the
panel at the helm anytime you like. The computer also "learns"
continuously the boat's characteristics and finds the exact rudder
center, itself.....doesn't make any difference where the sensor is
located, as long as it doesn't bang into its stops. Mechanical
calibration is eliminated this way and never needs repositioning.
Notice the motor on these rams are right in the end of the ram
opposite the drive rod.
This is one cool autopilot. You'd think a ghost were steering the
boat.
On Sun, 16 Nov 2003 00:09:00 -0500, "Doug Dotson"
wrote:
Larry,
Sounds good. That's exactly the way mine works. Motor is directly
connected to the hydraulic motor via a belt. Motor only activates
when the rudder needs to be moved and in the direction necessary.
Rudder position sensor is connected directly to the rudder control arm
so the computer knows the story. No calibration necessary other than
to adjust the linkage at installation time to know where center is.
Doug. k3qt
s/v Callista
"Larry W4CSC" wrote in message
...
On Sat, 15 Nov 2003 17:37:35 -0500, "Doug Dotson"
wrote:
Are you saying the the hydraulic motor on the B&G run continuously?
Is there an advantage to that? Mine just runs when the rudder moves
and is thus pretty kind to the bats.
Oh, no, not at all! As a matter of fact, IT REVERSES! Goes one way
to port and the other way to starboard. Controls are in the computer
box. There's a linear position sensor you calibrate from the helm for
hard to port/starboard and centered so the computer has a reference to
go by.
The motor doesn't run until it needs to move the rudder. It even runs
at variable speed, controlled by the computer. When it needs to move
quick, it runs hard.
Larry W4CSC
"Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!"
Larry W4CSC
"Very funny, Scotty! Now, BEAM ME MY CLOTHES! KIRK OUT!"