transom mountBrushed

Osapian 55 Slim

A shorter shaft (66/76 cm) at the same 55 lbs of thrust — built for lower transoms.

Thrust
55lbs
Voltage
12V
Power
660W

Suggested retail price

1,050 PLN

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Shaft length

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Haswing Osapian 55 Slim

01 / Overview

A shorter-shaft variant (S-66 cm / M-76 cm) for dinghies and boats with a lower transom. Despite the shorter shaft, motor power (660 W) exceeds the Osapian 55 LED (600 W) at the same 55 lbs of thrust.

A 5-forward/3-reverse gear switch with silver-plated contacts keeps the motor running reliably for years.

The telescoping tiller (21–35 cm) tilts through 110° of travel: 20° up, 90° down for transport.

The universal transom bracket offers 10 positions, adjusts along the full shaft length, and fits transoms up to 68 mm thick.

02 / In the box & options

  • 5/3 gear switch with silver-plated contacts
  • 5-LED battery gauge
  • 3-blade Ø24 cm prop with guard fin
  • Telescoping tiller, 110° tilt
  • Universal transom bracket (10 positions)
  • Two shaft lengths: S-66 cm / M-76 cm

04 / Motor construction

Haswing Osapian 55 Slim construction
  1. 01

    Telescopic tiller

    Extends 21–35 cm, tilts through 110°: 20° up, 90° down.

  2. 02

    LED gauge

    5-LED battery charge indicator on a 12 V scale.

  3. 03

    Gear switch

    5 forward / 3 reverse gears, silver-plated contacts built to last.

  4. 04

    Tiller lock

    Holds the tiller at working angle and folds it for transport.

  5. 05

    Transom bracket

    10 working positions, fits transoms 26–68 mm thick.

  6. 06

    Motor depth adjustment

    Depth collar — stepless adjustment along the full shaft length.

  7. 07

    Brushed motor

    Sealed drive unit with quiet operation.

    ~50 dB

  8. 08

    Aluminium shaft

    Anodised aluminium — fresh and salt water ready.

    S-66 cm / M-76 cm, Ø28 mm

  9. 09

    Fin

    Shields the propeller from bottom contact and weeds.

  10. 10

    Propeller

    Blade profile matched to the thrust of the model.

    3-blade Ø 24 cm

Shaft length vs submersion

Shaft lengthEffective submersion
S — 66 cm49 cm
M — 76 cm59 cm

Effective submersion per manufacturer data: shaft length − 17 cm.

06 / Gallery

07 / FAQ

Which battery fits the Osapian 55 Slim?+

The recommended battery is Min. 100 Ah Gel, Li-ion, LiFePO4. For a precise runtime estimate at a given capacity, use the battery calculator.

Which fuse should I use?+

This motor draws up to ~55 A at full throttle, so the recommended fuse rating is 65 A (AGU-type or resettable) — in practice, round up to the nearest size available.

How do I choose the right shaft length for my boat?+

This model ships with a S-66 cm / M-76 cm, Ø28 mm shaft. For the general sizing rule (transom or gunwale height → shaft length) see the sizing table on this page — Haswing motors also offer depth adjustment along the full shaft length, so a small mismatch is rarely a dealbreaker.

Does the motor run in salt water?+

Yes — the entire Haswing range runs in both fresh and salt water. After a season in salt water, rinse the shaft and prop with fresh water.

Osapian 55 Slim

1,050 PLN