Russian ship Gromoboi explained

Several ships of the Imperial Russian Navy have been named Gromoboi (ru|Громобой, meaning thunderer)

• – a 3,200-ton screw frigate built by Ulricaborgs skeppsvarf, Helsinki. 53 guns, 400 horsepower steam engine, length 63 meters.
• – a 12,455-ton armoured cruiser built by the Baltic Works, St Petersburg.