transom mountBrushed

Osapian 45

A longer 90 cm shaft and 45 lbs of thrust — for boats up to 4.5 metres.

Thrust
45lbs
Voltage
12V
Power
540W

Suggested retail price

940 PLN

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Haswing Osapian 45

01 / Overview

A longer 90 cm shaft for boats up to 4.5 m — 45 lbs of thrust at 540 W. The 2-blade Ø23 cm prop spins up to 1380 rpm, drawing no more than ~45 A.

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
  • Telescoping tiller, 110° tilt
  • Universal transom bracket (10 positions)
  • 2-blade Ø23 cm prop with guard fin

04 / Motor construction

Haswing Osapian 45 construction
  1. 01

    LED gauge

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

  2. 02

    Telescopic tiller

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

  3. 03

    Tiller lock

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

  4. 04

    Gear switch

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

  5. 05

    Motor depth adjustment

    Depth collar — stepless adjustment along the full shaft length.

  6. 06

    Transom bracket

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

  7. 07

    Aluminium shaft

    Anodised aluminium — fresh and salt water ready.

    90 cm, Ø28 mm

  8. 08

    Brushed motor

    Sealed drive unit with quiet operation.

    ~50 dB

  9. 09

    Propeller

    Blade profile matched to the thrust of the model.

    2-blade Ø 23 cm

  10. 10

    Fin

    Shields the propeller from bottom contact and weeds.

Shaft length vs submersion

Shaft lengthEffective submersion
90 cm73 cm

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

06 / Gallery

07 / FAQ

Which battery fits the Osapian 45?+

The recommended battery is Min. 80 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 ~45 A at full throttle, so the recommended fuse rating is 55 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 90 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 45

940 PLN