HMS A3, Royal Navy submarine wreck near Portland, United Kingdom
The vessel extends 32 meters in length with two forward torpedo tubes and housed a crew capacity of sixteen naval personnel.
The A3 submarine operated from 1904 until 1912, when it collided with HMS Hazard during training exercises in the eastern Solent waters.
The submarine represents early British naval engineering, marking a transition from experimental underwater vessels to standardized military submarine designs.
Located at coordinates 50.5235, -2.1875, the wreck site requires official permission from Historic England for diving or research activities.
The submarine received a royal inspection from Queen Alexandra in 1905, who spent thirty minutes examining the internal compartments.
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