The Tamiya 70185 Submarine Motor Mini is a practical component for STEM toolkits, giving students and hobbyists a hands-on way to study propulsion and basic mechanics. Its compact form makes it easy to install in model submarines and small water experiments.
Housed in a red casing with a white fixing screw and a white rudder, this Submarine Motor Mini stands out for simple visual identification. The motor uses a specialised winding that boosts top speed by about 40 percent versus earlier versions, reaching roughly 1 meter in 3.2 seconds for fast underwater runs.
Built with sealed O-rings for waterproofing, the unit is suited to wet environments and routine classroom use. It comes with a 35mm suction cap and a 50mm auxiliary board for mounting options, while the rear rudder provides straightforward direction control during tests.
The Submarine Motor Mini runs from a single R03/AAA/UM4 alkaline battery (not included) and can deliver up to one hour of continuous operation. Its compact measurements (Length: 108mm, Width: 23mm, Weight: 41.2g) allow easy integration into a variety of educational sets.
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