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Quick Reference Turns Chart

SEASTAR and BAYSTAR Hydraulic Steering Systems
12-7
CAPILANO HELM DISPLACEMENT (in
3
/rev)
1250V MIN 1250V MAX 1275 MIN 1275 MAX 1350
FRONT MOUNT, OUTBOARD
PIVOT CYLINDERS*** DISP. (in
3
) 1.7 3.4 2.7 5.4 8.0
SINGLE 8.3 4.9 2.4 3.1 1.5 1.0
DUAL** 16.6 9.8 4.9 6.1 3.1 2.1
TRIPLE** 24.9 14.6* 7.3* 9.2* 4.6* 3.1
QUAD** 33.2 19.5* 9.5* 12.3* 6.1* 4.2
INBOARD CYLINDERS DISP. (in
3
)
BA125-7 7.2 4.2 2.1 2.7 1.3 0.9
BA135-7 8.2 4.8 2.4 3.0 1.5 1.0
BA150-7 10.2 6.0 3.0 3.8 1.9 1.3
BA175-7 13.7 8.1* 4.0* 5.1 2.5 1.7
BA150-9 13.1 7.7* 3.9* 4.9 2.4 1.6
BA175-9 17.7 10.4* 5.2* 6.6* 3.3* 2.2
BA200-7 18.9 11.1* 5.6* 7.0* 3.5* 2.4
BA200-9 21.25 12.5* 6.25* 7.9* 3.9* 2.7
BA200-11 29.7 17.5 8.7 11.0* 5.5* 3.7
Capilano Helm Pumps Turns
QUICK REFERENCE TURNS CHART
SEASTAR HELM DISPLACEMENT (in
3
/rev)
FRONT MOUNT, OUTBOARD
PIVOT CYLINDERS*** DISP. (in
3
) 1.4 1.7 2.0 2.4 3.0
SINGLE 8.3 5.9 4.9 4.2 3.5 2.8
DUAL** 16.6 11.9 9.8 8.3 6.9 5.5*
TRIPLE** 24.9 17.8 14.6 12.5 10.4 8.3*
QUAD** 33.2 23.7 19.5 16.6 13.8 11.1*
INBOARD CYLINDERS DISP. (in
3
)
BA125-7 7.2 5.1 4.2 3.6 3.0 2.4*
BA135-7 8.2 5.9 4.8 4.1 3.4 2.7*
BA150-7 10.2 7.3 6.0 5.1 4.3 3.4*
BA175-7 13.7 9.8 8.1 6.9 5.7 4.6*
BA150-9 13.1 9.4 7.7 6.6 5.5 4.4*
BA175-9 17.7 12.6 10.4 8.9 7.4 5.9*
BA200-7 18.9 13.5 11.1 9.5 7.9 6.3*
BA200-9 21.25 15.2 12.5 10.6 8.9 7.1*
BA200-11 29.7 21.2 17.5 14.9 12.4 9.9
* Any system using a helm greater than 2.4 in 3 /rev & Power Assist , requires dual SPA's in parallel.
** Displacement is total effective cylinder volume (assumes cylinders are plumbed in parallel not series).
*** Includes Tournament Series and -3 outboard cylinders.
GOOD
OPTIMAL
GOOD
OPTIMAL
GOOD
OPTIMAL
SeaStar Helm Pumps Turns
BAYSTAR HELM DISPLACEMENT (in
3
/rev)
1.1 1.4
OUTBOARD CYLINDERS DISP. (in
3
)
HC4645H SINGLE 7.3 6.6 5.2
INBOARD CYLINDERS DISP. (in
3
)
BA125-6.25 6.7 6.1 4.8
BA100-6 3.53 3.2 2.5
BayStar Helm Pumps Turns