Shaft length selector Motor size selector Charging time calculator Runtime calculator Wire gauge calculator Motor comparison Horsepower converter

Tool

Motor size selector by boat weight

Enter the loaded weight and length of your boat or pontoon (with people and gear), and we'll show the recommended minimum thrust plus matching Haswing models.

Vessel type

Water conditions

Steering type (optional)

Recommended minimum thrust


Rule of thumb: ~2 lbs of thrust for every 100 lbs of loaded boat weight, increased by a safety buffer based on conditions. Pontoons add an extra margin — they have less water drag, but a large flat deck catches wind like a sail, requiring a stronger motor to hold position. Vessel length is used to filter out models that Haswing doesn't officially confirm for a boat that size. This is a starting point, not a strict rule — hull shape, extended trolling, or saltwater may require an even stronger motor. If you want power to spare for any condition, consider a motor 10–15 lbs stronger than recommended. If in doubt, contact us.

Matching Haswing models

Thrust is a starting point, not the only factor in choosing a motor — shaft length also matters (check the shaft length selector) as does how long you want to run on a single charge (runtime calculator). If in doubt, contact us or check the offer from one of our dealers.

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