Contact your local Twin Disc representative for engineering specifications. Specifications subject to change without prior notice in the interest of continual product improvement.

ASD 8Twin Disc Surface Drives

ASD 8ARNESON SURFACE DRIVE

ACCESSORIESAnode KitCylinder position indicator kits with gaugeHydraulic power steering system Gearbox adapterDriveline (cardan shaft)Companion (input) flangeTie-bar (mechanical or hydraulic – for multiple engine vessels)Inboard cylinder mounting kitPropeller

TECHNICAL DATA

ASD08B1L ASD08B3LDROP DISTANCE 10 INCH 16 INCH

Reduction Ratio/ Maximum Input Torque

1.00:11200 ft-lbs

1.00:1 / 1200 ft-lbs

1.32:1 / 909 ft-lbs

1.42:1 / 845 ft-lbs

1.53:1 / 785 ft-lbs

Unit Weight 285 lbsC458 lbs C485 lbs

B610 lbs B680 lbs

Overall Length 42 in 54 in

Nominal Shaft Diameter 2 in 2 in

Steering Angle Degree 40 degrees 40 degrees

Trim Angle Degree 15 degrees 15 degrees

DESCRIPTIONBRONZE IN-LINE (ASD08B1L)ALUMINUM-BRONZE DROP-CENTER (ASD08B3L)

Bronze thrust assemblyBronze (B) or aluminum (C) drop box (drop-center drives only)Internal lube oil reservoir Steering cylinder with external hoses and fittingsTrim cylinder with external hoses and fittings Standard (or optional longer) finStandard 25-tooth (or optional 26-tooth) splined propeller shaft Installation manual, owners manual and drive ball wrench (one per ship set)

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-ASD8

© 2009, Twin Disc, IncorporatedPrinted in the USA – 04/2009

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

ASD 8 DROP-CENTER & IN-LINE SURFACE DRIVE SCHEMATICS

2.28

2.62

18.64

12.308.75

Steering Cylinder

TOP VIEW

INPUT SHAFT DETAIL

8.00

2.00.88

COMPANIONFLANGE

3.501.87

4.13

2.28

20.49

35.57

18.9020.88

33.38

42.20

6°±1°

Trim Cylinder

SIDE VIEW(6° Transom Angle)

END VIEW(Dimensions are Parallel with Transom)

R 6.15

4.50

19.37

23° DEADRISESHOWN

(FOR 6° TRANSOM ONLY)

20.09

5.70

36°

Standard Fin – 12.00Optional Long Fin – 15.00

TOP VIEW

SIDE VIEW

END VIEW

0-19° STD CYL=32.81 IN.H.D. CYL=34.64 IN.

20-31° STD CYL=29.05 IN.H.D. CYL=29.50 IN.BOTH CYLS=26.93 IN.

INTERFACE DETAIL

31°

{{{

35.57

Standard Fin – 12.00Optional Long Fin – 15.00 8.25

8.93

10.19

17.7129.8131.96

44.46

8.80

2.62

27.25 MAX.22.75 MIN.

Steering Cylinder

Trim Cylinder

SHAFT SPLINE DATA

2.004.25

4.80 TRANSOM

COMPANIONFLANGE

31°

DROP-CENTER

IN-LINE

Contact your local Twin Disc representative for engineering specifications. Specifications subject to change without prior notice in the interest of continual product improvement.

ASD 10Twin Disc Surface Drives

ASD 10ARNESON SURFACE DRIVE

ACCESSORIESAnode kitCylinder position indicator kits with gaugeHydraulic power steering systemGearbox adapterDriveline (cardan shaft)Companion (input) flangeTie-bar (mechanical or hydraulic – for multiple engine vessels)Inboard cylinder mounting kitPropeller

DESCRIPTIONBRONZE IN-LINE (ASD10BIL) ALUMINUM OR BRONZE DROP-CENTER (ASD10B1S)

Bronze thrust assemblyBronze (B) or aluminum (C) drop box (drop-center drives only)Internal lube oil reservoirSteering cylinder with external hoses and fittingsTrim cylinder with external hoses and fittings Installation manual, owners manual and drive ball wrench (one per ship set)

TECHNICAL DATA

ASD10B1L ASD10B3S

Reduction RatioIn-Line 10 in – 16 in

1.00:1 1.00:1

Maximum Input Torque 2000 ft-lbs 1500 ft-lbs

Unit Weight 417 lbs

10 in: C560 lbs

10 in: B750 lbs

16 in: C600 lbs

16 in: B820 lbs

Overall Length 53 in 63 in

Nominal Shaft Diameter 2.5 in 2.5 in

Steering Angle Degree 40 degrees 40 degrees

Trim Angle Degree 15 degrees 15 degrees

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-ASD10

© 2009, Twin Disc, IncorporatedPrinted in the USA – 04/2009

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

ASD 10 IN-LINE SURFACE DRIVE SCHEMATICS

16.95

2.30

2.50

13.75

TOP VIEW

Steering Cylinder

Trim Cylinder

SIDE VIEW(6° Transom Angle)

21.81

6.64

2.75

10.54

8.5222.6624.75

41.8952.75

6°±1°

14.50

END VIEW(Dimensions are Parallel with Transom)

INPUT SHAFT DETAIL

1.99

1.00 2.0010.36

6.00

21.08

17.81

5.506.87

7.836.88 R

45°

23° DEADRISESHOWN(FOR 6° TRANSOM ONLY)

CONTACT TWIN DISC FOR DROP-CENTER SURFACE DRIVE SCHEMATICS

Contact your local Twin Disc representative for engineering specifications. Specifications subject to change without prior notice in the interest of continual product improvement.

ASD 11Twin Disc Surface Drives

ASD 11ARNESON SURFACE DRIVE

ACCESSORIESAnode kitCylinder position indicator kits with gaugeHydraulic power steering systemGearbox adapterDriveline (cardan shaft)Companion (input) flangeTie-bar (mechanical or hydraulic – for multiple engine vessels)Inboard cylinder mounting kitPropeller

TECHNICAL DATA – ASD11B1LReduction Ratio 1.00:1

Maximum Input Torque 3200 ft-lbs

Unit Weight 515 lbs

Overall Length from Transom 57 in

Nominal Shaft Diameter 2.875 in

Steering Angle Degree 40 degrees

Trim Angle Degree 15 degrees

DESCRIPTION

BRONZE IN-LINE (ASD11B1L)

Bronze thrust assemblyInternal lube oil reservoirSteering cylinder with external hoses and fittingsTrim cylinder with external hoses and fittings Installation manual, owners manual and drive ball wrench (one per ship set)

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-ASD11

© 2009, Twin Disc, IncorporatedPrinted in the USA – 04/2009

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

ASD 11 IN-LINE SURFACE DRIVE SCHEMATICS

TOP VIEW

SIDE VIEW(6° Transom Angle)

INPUT SHAFT DETAIL

Steering Cylinder

21.3925.34

2.64

Trim Cylinder29.47

10.31

6.502.58

1.18

4.93

25.60

7.06

6.64

6°

END VIEW(Dimensions are Parallel with Transom)

23.35

6.88 R

43.5°

21° DEADRISESHOWN

19.14

5.65

6.59(FOR 6° TRANSOM ONLY)

6.05

21.39

Contact your local Twin Disc representative for engineering specifications. Specifications subject to change without prior notice in the interest of continual product improvement.

ASD 12Twin Disc Surface Drives

ASD 12ARNESON SURFACE DRIVE

ACCESSORIESAnode kitCylinder position indicator kits with gaugeHydraulic power steering systemGearbox adapterDriveline (cardan shaft)Companion (input) flangeTie-bar (mechanical or hydraulic – for multiple engine vessels)Inboard cylinder mounting kitPropeller

DESCRIPTION

BRONZE IN-LINE (ASD12B1LU)

Bronze thrust assemblyInternal lube oil reservoirSteering cylinder with external hoses and fittingsTrim cylinder with external hoses and fittings Installation manual, owners manual and drive ball wrench (one per ship set)

TECHNICAL DATA – ASD12B1LUReduction Ratio 1.00:1

Maximum Input Torque 4800 ft-lbs

Unit Weight 785 lbs

Overall Length from Transom 63 in

Nominal Shaft Diameter 3.3 in

Steering Angle Degree 40 degrees

Trim Angle Degree 15 degrees

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-ASD12

© 2009, Twin Disc, IncorporatedPrinted in the USA – 04/2009

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

ASD 12 IN-LINE SURFACE DRIVE SCHEMATICS

SIDE VIEW(6° Transom Angle)

INPUT SHAFT DETAIL

TOP VIEW

Trim Cylinder6°±1°

25.83

7.4927.1629.69

51.3762.52

17.09

55.03

2.28

29.00

17.0012.90 5.94

Steering Cylinder

14.18

4.28

3.138.33

7.75

END VIEW(Dimensions are Parallel with Transom)

25.55

6.608.27

(FOR 6° TRANSOM ONLY)

23° DEADRISESHOWN

8.50 R

4.80

29.63

5.25

23°

43°

10.96

Contact your local Twin Disc representative for engineering specifications. Specifications subject to change without prior notice in the interest of continual product improvement.

ASD 14Twin Disc Surface Drives

ASD 14ARNESON SURFACE DRIVE

ACCESSORIESAnode kitCylinder position indicator kits with gaugeHydraulic power steering systemGearbox adapterDriveline (cardan shaft)Companion (input) flangeTie-bar (mechanical or hydraulic – for multiple engine vessels)Inboard cylinder mounting kitPropeller

DESCRIPTION

BRONZE IN-LINE (ASD14BIL)

Bronze thrust assemblyInternal lube oil reservoirSteering cylinder with external hoses and fittingsTrim cylinder with external hoses and fittings Standard (or optional longer) finInstallation manual, owners manual and drive ball wrench (one per ship set)

TECHNICAL DATA – ASD14BILReduction Ratio 1.00:1

Maximum Input Torque 8000 ft-lbs

Unit Weight 1135 lbs

Overall Length from Transom 71 in

Nominal Shaft Diameter 3.5 in

Steering Angle Degree 40 degrees

Trim Angle Degree 15 degrees

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-ASD14

© 2009, Twin Disc, IncorporatedPrinted in the USA – 04/2009

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

ASD 14 IN-LINE SURFACE DRIVE SCHEMATICS

TOP VIEW

INPUT SHAFT DETAIL

SIDE VIEW(6° Transom Angle)

18.94

14.81

37.9834.58

2.28

5.94

Trim Cylinder

3.11

34.10

27.26

9.59

8.9911.62

33.6435.94

57.8271.17

26.60

7.44

9.71FOR 6° TRANSOM ONLY) 35.49

9.39

38.10

30°30° 20° DEADRISE

SHOWN

23°9.47 R

6°±1

3.7515.19

15.6619.768.57

3.22 8.44

1.50

END VIEW(Dimensions are Parallel with Transom)

BOTTOM HULL

Standard Fin – 18.00Optional Long Fin – 21.00

Contact your local Twin Disc representative for engineering specifications. Specifications subject to change without prior notice in the interest of continual product improvement.

ASD 15Twin Disc Surface Drives

ASD 15ARNESON SURFACE DRIVE

ACCESSORIESAnode kitCylinder position indicator kits with gaugeHydraulic power steering systemGearbox adapterDriveline (cardan shaft)Companion (input) flangeTie-bar (mechanical or hydraulic – for multiple engine vessels)Propeller

TECHNICAL DATA

ASD15A1S ASD15A1LReduction Ratio 1.00:1 1.00:1

Maximum Input Torque 11,500 ft-lbs 13,500 ft-lbs

Unit Weight 1,500 lbs 1,540 lbs

Overall Length from Transom 78 in 78 in

Nominal Shaft Diameter 4.5 in 4.5 in

Steering Angle Degree 36 degrees 36 degrees

Trim Angle Degree 15 degrees 15 degrees

DESCRIPTION

ALUMINUM IN-LINE (ASD15A1S AND ASD15A1L)

Aluminum thrust assemblyInternal lube oil reservoirSteering cylinder with external hoses and fittingsTrim cylinder with external hoses and fittings Installation manual, owners manual and drive ball wrench (one per ship set)

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-ASD15

© 2009, Twin Disc, IncorporatedPrinted in the USA – 04/2009

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

ASD 15 IN-LINE SURFACE DRIVE SCHEMATICS

TOP VIEW

Steering Cylinder

INPUT SHAFT DETAIL

SIDE VIEW(6° Transom Angle)

END VIEW

Trim Cylinder

975.74

540.00

866.14

304.06

397.50 361.74248.84

888.161552.66

1986.70

866.15

314.16304.06

220.00

306.00

15°

2°

22°

533.89

6°

142.001737.86

Transom

848.00215.00

200.00440.00

584.

00

BOTTOM HULL

975.74

84.06

Contact your local Twin Disc representative for engineering specifications. Specifications subject to change without prior notice in the interest of continual product improvement.

ASD 16Twin Disc Surface Drives

ASD 16ARNESON SURFACE DRIVE

ACCESSORIESAnode kitCylinder position gaugesHydraulic power steering systemGearbox adapterDriveline (cardan shaft)Companion (input) flangeTie-bar (mechanical or hydraulic – for multiple engine vessels)Propeller

DESCRIPTION

ALUMINUM IN-LINE (ASD16A1LU)

Aluminum thrust assemblyInternal lube oil reservoirSteering cylinder (electronic feedback) with external hoses and fittingsTrim cylinder (electronic feedback) with external hoses and fittings Installation manual, owners manual and drive ball wrench (one per ship set)

TECHNICAL DATA – ASD16A1LUReduction Ratio 1.00:1

Maximum Input Torque 16,500 ft-lbs

Unit Weight 1,985 lbs

Overall Length from Transom 87 in

Nominal Shaft Diameter 4.5 in

Steering Angle Degree 36 degrees

Trim Angle Degree 15 degrees

Twin Disc, Incorporated reminds users of these products that their safe operation depends on use in compliance with engineering information provided in our catalog. Users are also reminded that safe operation depends on proper installation, operation and routine maintenance and inspection under prevailing conditions. It is the responsibility of users (and not Twin Disc, Incorporated) to provide and install guards or safety devices which may be required by recognized safety standards or by the Occupational Safety and Health Act of 1970 and its subsequent provisions. TD-Bulletin-ASD16

© 2009, Twin Disc, IncorporatedPrinted in the USA – 04/2009

Twin Disc, IncorporatedRacine, Wisconsin 53403 USA

Phone +1-262-638-4000Fax +1-262-638-4482

www.twindisc.com

ASD 16 IN-LINE SURFACE DRIVE SCHEMATICS

TOP VIEW

Steering Cylinder

INPUT SHAFT DETAIL

SIDE VIEW(6° Transom Angle)

Trim Cylinder36.93

18.2910.8116.08

38.81

21.00

67.6886.54

22.13

6.18

75.2623.1764.27

46.87

23.00 8.83

3.83

4.759.50 12.75

18.2918.92

6°

END VIEW

43.3713.199.62

38.78

13.21

BOTTOM HULL22°

20°