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INSTALLATION MANUAL

Pick and fit the right Sleipner Side-Power stern tunnel: measurements for DC, IP, eVision and hydraulic stern thrusters, external tunnel dimensions, depth and cowls, keeping the motor dry, motor support, and bolt-on, mould-in and split installations.

DocumentSleipner Stern Thruster Tunnel Installation Manual
FormatPDF · 20 pages · 2.4 MB
LanguageEnglish
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Sleipner Stern Thruster Tunnel — Installation Manual

DC Stern Thruster Measurements

Model L
Internal length, mm (in) 		+L
Tunnel length 		WD
Water depth* 		HT(max)
Hull thickness 		H
Motor height 		W
Tunnel width 		Tunnel
Stern tunnel
SE(P) 30 12V 218 (8.6) 188 (7.4) 125 (4.9) 19 (0.8) 198 (7.9) 197 (7.8) 90124I
SE(P) 40 12V 228 (9) 188 (7.4) 125 (4.9) 17 (0.7) 205 (8.1) 197 (7.8) 90124I
SE(P) 60 12V 231 (9.1) 265 (10.4) 185 (7.3) 43 (1.7) 200 (7.9) 335 (13.2) 90052I
SE(P) 60 24V 214 (8.4) 265 (10.4) 185 (7.3) 56 (2.2) 202 (8) 335 (13.2) 90052I
SE(P) 80 12V 294 (11.6) 265 (10.4) 185 (7.3) 56 (2.2) 253 (10) 335 (13.2) 90086I
SE(P) 80 24V 303 (11.9) 265 (10.4) 185 (7.3) 56 (2.2) 261 (10.3) 335 (13.2) 90086I
SE(P) 100 12V 351 (13.8) 265 (10.4) 185 (7.3) 60 (2.4) 292 (11.5) 335 (13.2) 90086I
SE(P) 100 24V 351 (13.8) 265 (10.4) 185 (7.3) 64 (2.5) 272 (10.7) 335 (13.2) 90086I
SE(P) 120 24V 361 (14.2) 300 (11.8) 215 (8.5) 61 (2.4) 266 (10.5) 330 (13) 90135I
SE(P) 130 12V 352 (13.9) 345 (13.6) 250 (9.9) 56 (2.2) 297 (11.7) 350 (13.8) 90140I  ( 90150I)
SE(P) 130 24V 348 (13.7) 345 (13.6) 250 (9.9) 55 (2.2) 277 (10.9) 350 (13.8) 90140I  ( 90150I)
SE(P) 150 24V 380 (15) 300 (11.8) 215 (8.5) 73 (2.9) 292 (11.5) 330 (13) 90135I
SE(P) 170 24V 362 (14.3) 345 (13.6) 250 (9.9) 56 (2.2) 292 (11.5) 350 (13.8) 90150I  ( 90140I)
SE(P) 210 24V 422 (16.6) 360 (14.2) 250 (9.8) 50 (2) 274 (10.8) 350 (13.8) 90150I  ( 90180I)
SE(P) 250 24V 440 (17.3) 417 (16.4) 300 (11.8) 68 (2.7) 337 (13.3) 456 (18) 90200I
SE(P) 300 48V 407.2 (16) 422 (16.6) 300 (11.8) 67 (2.6) 350 (13.8) 456 (18) 90200I

* See the depth recommendations below. Stern tunnel measurements may vary slightly between compatible tunnel models.

DC IP (Ignition Protected) Stern Thruster Measurements

Model L
Internal length, mm (in) 		+L
Tunnel length 		WD
Water depth* 		HT(max)
Hull thickness 		H
Motor height 		W
Tunnel width 		Tunnel
Stern tunnel
SE(P) 30 IP 12V 256 (10.1) 188 (7.4) 125 (4.9) 70 (2.8) 238 (9.4) 198 (7.8) 90124I
SE(P) 40 IP 12V 268 (10.6) 188 (7.4) 125 (4.9) 65 (2.6) 238 (9.4) 197 (7.8) 90124I
SE(P) 60 IP 12V 278 (10.9) 265 (10.4) 185 (7.3) 88 (3.5) 272 (10.7) 335 (13.2) 90052I
SE(P) 60 IP 24V 278 (10.9) 265 (10.4) 185 (7.3) 88 (3.5) 272 (10.7) 335 (13.2) 90052I
SE(P) 80 IP 12V 364 (14.3) 265 (10.4) 185 (7.3) 64 (2.5) 327 (12.9) 335 (13.2) 90086I
SE(P) 80 IP 24V 364 (14.3) 265 (10.4) 185 (7.3) 64 (2.5) 327 (12.9) 335 (13.2) 90086I
SE(P) 100 IP 12V 458 (14.3 – as printed) 265 (10.4) 185 (7.3) 72 (2.8) 381 (12.9 – as printed) 335 (13.2) 90086I
SE(P) 100 IP 24V 468 (18.4) 265 (10.4) 185 (7.3) 81 (3.2) 381 (15) 335 (13.2) 90086I
SE(P) 120 IP 24V 463 (18.2) 300 (11.8) 215 (8.5) 97 (3.8) 381 (15) 330 (13) 90135I
SE(P) 130 IP 12V 463 (18.2) 345 (13.6) 250 (9.8) 83 (3.3) 381 (15) 350 (13.8) 90140I  ( 90150I)
SE(P) 130 IP 24V 463 (18.2) 345 (13.6) 250 (9.8) 83 (3.3) 381 (15) 350 (13.8) 90140I  ( 90150I)
SE(P) 170 IP 24V 362 (18.2 – as printed) 345 (13.6) 250 (9.8) 56 (2.2) 292 (11.5) 350 (13.8) 90140I  ( 90150I)

eVision Stern Thruster Measurements

Model L
Internal length, mm (in) 		+L
Tunnel length 		WD
Water depth* 		HT(max)
Hull thickness 		H
Motor height 		W
Tunnel width 		Tunnel
Stern tunnel
E30 12V – 190 (7.48) 125 (4.92) 19 (0.75) 196 (7.72) 197 (7.76) 90124I
E40 12V – 190 (7.48) 125 (4.92) 17 (0.67) 196 (7.72) 197 (7.76) 90124I
E60 12V & 24V – 265 (10.43) 185 (7.28) 43 (1.69) 196 (7.72) 335 (13.19) 90052I  ( 90086I)
E80 12V & 24V – 265 (10.43) 185 (7.28) 56 (2.20) 196 (7.72) 335 (13.19) 90052I  ( 90086I)
E95 24V – 265 (10.43) 185 (7.28) 56 (2.20) 196 (7.72) 335 (13.19) 90052I  ( 90086I)
E100 24V & 48V 359 (14.1) 265 (10.4) 185 (7.3) 42 (1.7) 285 (11.2) 335 (13.2) 90086I
E120 24V & 48V 354.5 (14.0) 300 (11.8) 215 (8.5) 57 (2.2) 285 (11.2) 330 (13.0) 90135I
E130 24V & 48V 339 (13.3) 345 (13.6) 250 (9.8) 42 (1.7) 285 (11.2) 350 (13.8) 90140I  ( 90150I)
E150 24V & 48V 354.5 (14.0) 300 (11.8) 215 (8.5) 57 (2.2) 285 (11.2) 330 (13.0) 90135I
E170 24V & 48V 339 (13.3) 344.5 (13.6) 250 (9.8) 42 (1.7) 285 (11.2) 350 (13.8) 90140I  ( 90150I)
E210 24V & 48V 370 (14.6) 353 (13.9) 250 (9.8) 33 (1.3) 285 (11.2) 350 (13.8) 90150I
E240 48V 370 (14.6) 353 (13.9) 250 (9.8) 33 (1.3) 285 (11.2) 350 (13.8) 90150I
E250 24V & 48V 387 (15.24) 419 (16.50) 300 (11.81) 50 (1.97) 285 (11.22) 456 (17.95) 90200I
E300 48V 387 (15.24) 419 (16.50) 300 (11.81) 50 (1.97) 285 (11.22) 456 (17.95) 90200I

The internal length (L) is left blank for E30–E95 in the manual.

Hydraulic Stern Thruster Measurements

Model L
Internal length, mm (in) 		+L
Tunnel length 		WD
Water depth* 		HT(max)
Hull thickness 		H
Motor height 		W
Tunnel width 		Tunnel
Stern tunnel
SH100 172 (7) 256 (10) 150 (6) 35 (1.4) 200 (8) 337 (13.3) 90086I
SH160 172 (7) 300 (11.8) 215 (8.5) 54 (2.1) 200 (8) 330 (13) 90135I
SH240 91 (3.6) 340 (13.4) 250 (9.8) 60 (2.4) 200 (7.9) 350 (13.8) 90140I
SH320 195 (7.7) 420 (16.5) 300 (11.8) 60 (2.4) 258 (10.2) 456 (18) 90200I
SH400 305 (12) 422 (16.6) 300 (11.8) 60 (2.4) 258 (10.2) 456 (18) 90350
SH420 257 (10.1) 540 (21.3) 380 (15) 54 (2.1) 200 (7.9) 550 (21.7) 90550
SH550 257 (10.1) 540 (21.3) 380 (15) 54 (2.1) 220 (8.7) 550 (21.7) 90550
SH1000 405 (7.3 – as printed) 705 (0.3 – as printed) 770 (30.3) 120 (4.7) 200 (7.9) 850 (33.5) 91000
SH1400 470 (18.5) 820 (32.3) 915 (36) 145 (5.7) 250 (9.8) 860 (33.9) 91400

External Stern Tunnel Measurements, mm (in)

Tunnel A
Tunnel bolt circle 		B
Bolt hole diameter 		C
Gear leg hole diameter 		D
Gear leg bolt hole diameter 		E
Gear leg bolt hole center 		F
Tunnel diameter 		G
Tunnel length 		H
Tunnel distance from hull 		I
Cut out hull 		J
Tunnel to hull diameter
90124I 201 (7.91) 6.7 (0.26) 28 (1.1) 8.5 (0.33) 41 (1.61) 125 (4.92) 197 (7.76) 190 (7.48) 160 (6.29) 225 (8.9) View tunnel →
90052I 260 (10.24) 10.5 (0.41) 28.5 (1.12) 8.7 (0.34) 46 (1.81) 185 (7.28) 335 (13.19) 265 (10.43) 204 (8.03) 290 (11.4) View tunnel →
90086I 260 (10.24) 10.5 (0.41) 33 (1.3) 8.7 (0.34) 56 (2.2) 185 (7.28) 335 (13.19) 265 (10.43) 216 (8.5) 294 (11.57) View tunnel →
90135I 266 (10.47) 10.5 (0.41) 46 (1.81) 11 (0.43) 80 (3.15) 215 (8.46) 330 (12.99) 300 (11.81) 203 (7.99) 305 (12) View tunnel →
90140I 250 (9.84) 10.5 (0.41) 47 (1.85) 12 (0.47) 80 (3.15) 250 (9.84) 360 (14.17) 340 (13.39) 185 (7.28) 300 (11.8) View tunnel →
90150I 308 (12.13) 10.5 (0.41) 46 (1.81) 10.4 (0.41) 80 (3.15) 250 (9.84) 350 (13.78) 345 (13.58) 257 (10.12) 350 (13.8) View tunnel →
90180I 308 (12.13) 12 (0.47) 46 (1.81) 12 (0.47) 80 (3.15) 250 (9.84) 350 (13.78) 353 (13.89) 254 (10) 356 (14) View tunnel →
90200I 346 (13.62) 12.5 (0.49) 52 (2.05) 12.5 (0.49) 96 (3.78) 300 (11.81) 456 (17.95) 419 (16.49) 265 (10.43) 396 (15.6) View tunnel →
90350 346 (13.62) 12.5 (0.49) 66.5 (2.62) 12.5 (0.49) 96 (3.78) 300 (11.81) 456 (17.95) 419 (16.5) 269 (10.59) 396 (15.59) Ask us to source it →
90550 535 (21.06) 12.5 (0.49) 85 (3.35) 18 (0.71) 140 (5.51) 386 (15.20) 550 (21.65) 581 (22.87) 403 (15.87) 600 (23.6) View tunnel →
90700 540 (17.72 – as printed) 19 (0.75) 80 (3.15) 18 (0.71) 140 (5.51) 411.5 (16.20) 700 (27.56) 535 (21.06) 450 (17.72) 595 (23.4) Ask us to source it →
Tunnel A B C D E (c/c) F G H I J (c/c) K
91000 680 (26.77) 18 (0.71) 120 (4.72) 18 (0.71) 190 (7.48) 513 (20.20) 850 (33.46) 705 (27.76) 551 (21.69) 50 (1.97) 755 (29.72)
91400 750 (29.53) 20 (0.79) 120 (4.72) 18 (0.71) 190 (7.48) 610 (24.02) 860 (33.86) 822 (32.36) 621 (24.45) 50 (1.97) 810 (31.89)

91000 / 91400: E and J are gear leg bolt hole centre-to-centre distances, K is tunnel to hull diameter.

Depth, Cowls and Keeping It Dry

Depth & Cowls

  • Install as deep as possible on the transom: no air drawn from the surface, maximum water pressure.
  • Waterline to top of tunnel: at least 1x the tunnel diameter for best performance; absolute minimum 1/2 x the diameter (see WD in the tables).
  • Shallow drafts or obstructions (trim tabs, jets, surface drives): fit stern thruster cowls. Less efficient than a deep installation, better than a shallow one without cowls.
  • Cowls angled out of horizontal must be installed deeper to avoid air entry.

Dry Compartment & Support

  • Motor and solenoids are not waterproof: build a dry, sealed compartment – seal drain holes into it, drain surrounding areas away, isolate it from propeller and rudder shafts, and make sure a failed bilge pump cannot flood it (a self-activating bilge pump with alarm is recommended).
  • Route the control cables high so they stay dry.
  • Always support the motor so its weight does not stress or twist the bracket/tunnel joint – the tunnel can crack over time and let water in.

Bolt-On, Mould-In and Split Installation

Bolt-On

  1. Make the tunnel flange flush on the transom (keep the minimum transom thickness).
  2. Hold the tunnel horizontal, mark the bolt holes, remove it and mark the internal centre diameter.
  3. Cut the centre opening and the bolt holes; seal the cut areas with gel-coat or similar inside and out.
  4. Install the gear leg per the thruster guide (fit the oil lead now if used).
  5. Seal the flange and bolt holes with an MS-Polymer or polyurethane compound; fit bolts with A4 lock nuts and large A4 washers inside and out (bolts, washers and nuts not included).
  6. Install the motor support.

Mould-In (GRP tunnels only)

  1. Cut off the bolting section of the tunnel mould and grind the gel-coat inside and out.
  2. Mark and cut the transom opening; grind the transom gel-coat at least 10cm around it, inside and out.
  3. Bond the tunnel horizontally with multiple layers of mat inside and out, checking material compatibility, without reducing the internal diameter.
  4. Gel-coat the bonded areas, install the gear leg and the motor support.

Split Tunnel

  1. Flange flush on the transom; mark and cut the opening and bolt holes; seal as for bolt-on.
  2. Install the gear leg and the motor bracket with its included metal supports (no extra support frame needed).
  3. Seal flange and bolt holes; fit washer and locknut (or counter nut) and tighten to 20Nm.
  4. Fit the outer tunnel half with sealant, making sure the locking tabs engage.
  5. Bolt diameter: measurement B in the tunnel table.

A boatbuilder or naval architect must approve any customisation of the transom.

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.

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