The Insect-class gunboats (or large China gunboats) were a class of small but well-armed

Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...

ships designed for use in shallow rivers or inshore. They were intended for use on the

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against

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(the China name was to disguise their function; however, they did see service on the Yangtze river in China). The first four ships—''Gnat'', ''Mantis'', ''Moth'' and ''Tarantula''—were first employed during the

Mesopotamian Campaign The Mesopotamian campaign or Mesopotamian front () was a campaign in the Middle Eastern theatre of World War I fought between the British Empire, with troops from United Kingdom of Great Britain and Ireland, Britain, Australia and the vast major ...

of the

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on the

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and

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rivers.

Design

The ships were designed by

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to operate in shallow, fast-flowing rivers, with a shallow draught and a good turn of speed to counter river flow. They were fitted with two vertical triple expansion engines operating two propeller shafts to offer some redundancy. The propellers were housed in tunnels to minimise the operating draught. The main armament consisted of two 6-inch guns in single mountings fore and aft.

Deployment

''Aphis'', ''Bee,'' ''Ladybird'' and ''Scarab'' were deployed to Port Said, Egypt, in 1915–16, ''Gnat'', ''Mantis'', ''Moth'' and ''Tarantula'' were sent to the

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in 1916. ''Glowworm'', ''Cicala'', ''Cockchafer'' and ''Cricket'' were deployed to the east coast of England in 1916 and had their main armament mountings modified to give higher elevation for anti-Zeppelin work. In 1919, during the

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, ''Glowworm'', ''Cicala'', ''Cockchafer'', ''Cricket'', ''Moth'' and ''Mantis'' served on the Dvina River (northern Russia, in

Arkhangelsk Oblast Arkhangelsk Oblast ( rus, Архангельская область, p=ɐrˈxanɡʲɪlʲskəjə ˈobɫəsʲtʲ) is a federal subjects of Russia, federal subject of Russia (an oblast). It includes the Arctic Ocean, Arctic archipelagos of Franz ...

), fighting in support of White Russian forces. ''Glowworm''s captain and some other crew members were killed when a nearby ammunition barge exploded. The crew of ''Cicala'' mutinied as part of a wider wave of unrest in the Royal Navy and five "ringleaders" were sentenced to death, later commuted to five years' imprisonment. Between the two world wars, the class were mainly used in the

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and they were present during the Japanese invasion of China. In 1937, on the

Yangtze The Yangtze or Yangzi ( or ) is the longest river in Eurasia and the third-longest in the world. It rises at Jari Hill in the Tanggula Mountains of the Tibetan Plateau and flows including Dam Qu River the longest source of the Yangtze, i ...

river, the Japanese attacked , firing on her from a shore battery. US gunboat was also attacked by Japanese aircraft and sunk. ''Ladybird'' sailed the to the scene of the sinking, rescued some of the ''Panay'' survivors and took them to

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. ''Scarab'' and ''Cricket'' were off Nanking in 1937 as the Japanese started to bomb the city. In 1939, the original two 6 inch Mk VII 45-calibre guns on and ''Ladybird'' were replaced by more modern and longer 6-inch Mk XIII 50-calibre guns from the decommissioned

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. At the start of the Second World War, three vessels, ''Cricket'', ''Gnat'' and ''Ladybird'', were transferred to the Inshore Squadron of the Mediterranean Fleet. They joined the

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and provided bombardment support for the Eighth Army. Their shallow draught allowed them to act also as supply and landing vessels, able to get close to beaches. In June 1943, ''Aphis'' took part in the bombardment of

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( Operation Corkscrew).

Ships in class

* : built by Ailsa shipbuilding, scrapped

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, 1947. * : built by Ailsa shipbuilding, flagship of Rear Admiral, Yangtze (RAY), sold in March 1939. * : built by Barclay Curle, sunk by Japanese bombs on 21 December 1941. * : built by Barclay Curle, sold for scrap in 1949, the last surviving member of the class. * : built by Barclay Curle, heavily damaged by bombs on 29 June 1941; used as target by Royal Navy and sunk off Cyprus 1944. * : built by Barclay Curle, scrapped September 1928. * : built by Lobnitz, damaged by U-boat 21 October 1941, declared total loss, and then used as anti-aircraft platform. Scrapped 1946. * : built by Lobnitz, sunk on 12 May 1941 off

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during World War II, then used as an anti-aircraft position * : built by Sunderland Shipbuilding Company Ltd, sold in January 1940 and subsequently scrapped. * : built by Sunderland Shipbuilding Company Ltd, scuttled in Hong Kong 1941, captured and repaired by the Japanese and renamed ''Suma'', sunk by mines in Yangtze River on 19 March 1945. * : built by Wood, Skinner & Co, scrapped in 1948. * built by Wood, Skinner & Co, briefly flagship of the

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, expended as a target 1946.

Notes

Footnotes

References

External links

Summary of the China gunboats of various nations

* Transcription of ships' logbooks available for several members of the class. {{DEFAULTSORT:Insect Class Gunboat Gunboat classes World War I gunboats Riverine warfare