There are several reasons why some divers prefer to dive with an underwater propulsion scooter. But, one common reason is to reduce finning so the air supply lasts longer.
This section explains what a Diver Propulsion Vehicle (DPV) is, how they work, and why some underwater scooters are better than others - especially for beginners.
In general, you will be able to cover a large area underwater if you are using a diver scooter. But, they are also handy for:
This particular item of scuba diving equipment is motorised and battery-powered. As a result, only commercial and technical divers used them in large-scale practical applications - until quite recently.
Nowadays, DPVs have become popular with sport divers, mainly because they facilitate 'effortless' swims. Even so, because you'll be less active and water will be constantly running over your body, you should be wearing increased thermal protection to avoid issues with hypothermia.
It's important to be clear about the two different types. Unless you want to sit on (straddling) the device, you may be better suited to the type that has a handle. In other words, as the machine moves forward it will tow your body behind it.
The 'ride on' type of scooter DPV tends to be bigger - and so they are more expensive.
But, this model will provide most comfort over long journeys.
Depending on which power setting you are using, it would be unusual for the battery to last more than two (2) hours.
Underwater scooters with adjustable speed options generally reach speeds up to five (5) kilometres per hour (3 mph).
Of course, the size, shape, and "streamlining" of the diver will have a significant effect on the ultimate operating speed.
Plus, managing the speed of the scooter conservatively will reduce the likelihood of running out of battery power before you need to surface (e.g. low air supply).
Pro Tip: Taking the PADI® Diver Propulsion Vehicle Diver (scooter course) will help you learn how to pilot a scuba DPV in the water.
Pro Tip: The short video tutorial [2:23 seconds] presented by Global Underwater Explorers describes how to perform a barrel roll while using a high powered DPV diving scooter.