NAVYPEDIA

Photo

Glowworm

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate	Modification
Gallant	H59		A. Stephens, Linthouse	9/1934	26.9.1935	2/1936	CTL 5.2.1942	"G" group
Garland	H37		Fairfield, Govan	8/1934	24.10.1935	3/1936	to Poland 5.1940 - 9.1946 (Garland), to Netherlands 11.1947 (Marnix)	"G" group
Gipsy	H63		Fairfield, Govan	9/1934	7.11.1935	2/1936	sunk 21.11.1939	"G" group
Glowworm	H92		Thornycroft, Woolston	8/1934	22.7.1935	1/1936	sunk 8.4.1940	"G" group
Grafton	H89		Thornycroft, Woolston	8/1934	18.9.1935	3/1936	sunk 29.5.1940	"G" group
Grenade	H86		A. Stephens, Linthouse	10/1934	12.11.1935	3/1936	sunk 29.5.1940	"G" group
Greyhound	H05		Vickers-Armstrong, Barrow	9/1934	15.8.1935	1/1936	sunk 22.5.1941	"G" group
Griffin, 3.1943 - Ottawa (RCN 3.1943)	H31		Vickers-Armstrong, Barrow	9/1934	15.8.1935	3/1936	stricken 10.1945, BU 1.1946	"G" group
Hasty	H24		Denny, Dumbarton	4/1935	5.5.1936	11/1936	sunk 15.6.1942	"H" group
Havock	H43		Denny, Dumbarton	5/1935	7.7.1936	1/1937	wrecked 6.4.1942	"H" group
Hereward	H93		Vickers-Armstrong, Tyne	2/1935	10.3.1936	12/1936	sunk 29.5.1941	"H" group
Hero, 11.1943 - Chaudiere (RCN 11.1943)	H99		Vickers-Armstrong, Tyne	2/1935	10.3.1936	10/1936	stricken 8.1945, BU 3.1946	"H" group
Hostile	H55		Scotts, Greenock	2/1935	24.1.1936	9/1936	sunk 23.8.1940	"H" group
Hotspur	H01		Scotts, Greenock	2/1935	23.3.1936	12/1936	to Dominican Republic 11.1948 (Trujillo)	"H" group
Hunter	H35		Swan Hunter, Wallsend	3/1935	25.2.1936	9/1936	sunk 10.4.1940	"H" group
Hyperion	H97		Swan Hunter, Wallsend	3/1935	8.4.1936	12/1936	sunk 22.12.1940	"H" group
Icarus	D03 - I03		John Brown, Clydebank	3/1936	26.11.1936	5/1937	BU 10.1946	"I" group
Ilex	D61 - I61		John Brown, Clydebank	3/1936	28.1.1937	7/1937	stricken 1.1946	"I" group
Imogen	D44		Hawthorn Leslie, Hebburn	1/1936	30.10.1936	6/1937	collision 16.7.1940	"I" group
Imperial	D09		Hawthorn Leslie, Hebburn	1/1936	11.12.1936	6/1937	sunk 29.5.1941	"I" group
Impulsive	D11		White, Cowes	3/1936	1.3.1937	1/1938	BU 1.1946	"I" group
Intrepid	D10 - I10		White, Cowes	1/1936	17.12.1936	7/1937	sunk 26.9.1943	"I" group
Isis	D87		Yarrow, Scotstoun	2/1936	12.11.1936	6/1937	sunk 20.7.1944	"I" group
Ivanhoe	D16		Yarrow, Scotstoun	2/1936	11.2.1937	8/1937	sunk 1.9.1940	"I" group

Technical data

Max speed, kts, kn	36
Displacement standard, t	1335 - 1370
Displacement full, t	1854 - 1890 (later 1980 - 2095)
Length, m	95.1 pp 98.5 oa
Breadth, m	10.1
Draught, m	3.78 (later 3.96 - 4.06)
No of shafts	2
Machinery	2 sets Parsons geared steam turbines, 3 Admiralty 3-drum boilers Hyperion: 2 sets Parsons geared steam turbines, 2 Admiralty 3-drum boilers + 1 Johnson boiler
Power, h. p.	34000
Fuel, t	443 - 461 oil
Endurance, nm(kts)	5530(15)
Armament	4 x 1 - 120/45 QF Mk IX, 2 x 4 - 12.7/62, 2 x 4 - 533 TT, 2 DCT, 1 DCR (20 DC), mechanical minesweeping gear Glowworm, "I": 4 x 1 - 120/45 QF Mk IX, 2 x 4 - 12.7/62, 2 x 5 - 533 TT, 2 DCT, 1 DCR (20 DC), mechanical minesweeping gear
Electronic equipment	"G": type 121 sonar "H", "I": type 124 sonar
Complement	145

Standard scale images

Graphics

Project history

Destroyers of 1933 Programme became repeats of predecessors of "Е" class, but at the expense of some machinery changes they had smaller displacement.

Experience of service of destroyers of early classes has revealed ability to refuse special cruising turbines (more truly, cruising stages in the common turbine unit). At little reduction of an endurance it allowed to simplify construction of turbine, raise its reliability, and also to decrease engine room length. Ships dimensions, at the expense of the last and restoration of a bulkhead between 1 and 2nd boiler rooms, became the same as at the ships of "C" class. Decreasing of dimensions and displacement has allowed to decrease engine power from 36 000 to 34 000 hp. In remaining an internal arrangement and armament of ships repeated "Е" class. For reception of practical experience of quintuple TT mounts usage one destroyer was equipped with them.

Outwardly "G" class destroyers differed from the "Е" class by presence of tripod mainmast.

Ships of the 1934 Programme ("Н" class) became repetition of "G" except for new Mk XVII main gun mounts with natural gun balancing. 40° elevation angle was reached at the expense of shear of an axis of trunnions of a gun to a gate, that allowed more space for recoil at the maximum elevation angle. Two ships, ordered to Parsons, received new bridges with an oblique front part: characteristic line of all subsequent British destroyers up to "Battle" class.Destroyers of "I" class repeated "Н", differing only by quintuple TTs.

Possibility of conversion of all of three destroyer classes to minelayers was provided.

Modernizations

1940, Garland, Greyhound, Griffin, Hasty, Havock, Hereward, Hero, Hostile, Hotspur, Hyperion and m. b. Grafton and Grenade: - 1 x 4 - 533 TT; + 1 x 1 - 76/45 QF Mk I/II/III/IV

1940, Icarus, Ilex, Imperial, Impulsive, Intrepid, Isis, Ivanhoe and m. b. Imogen: - 1 x 5 - 533 TT; + 1 x 1 - 76/45 QF Mk I/II/III/IV

1940 - 1942 (periodically for a short time) Impulsive, Ivanhoe, Intrepid, Icarus: - 2 x 1 - 120/45, 2 x 5 - 533 TT; + rails with 60 mines

1941, Garland, Griffin: - 1 x 1 - 120/45; + 2 x 1 - 20/70 Oerlikon Mk II/IV, 2 DCT (70 DC totally)

1941, Hasty, Havock, Hereward, Hero, Hotspur, Icarus, Ilex, Impulsive, Intrepid, Isis and m. b. Gallant, Greyhound and Hyperion: + 2 x 1 - 20/70 Oerlikon Mk II/IV

1941 - 1942, almost all survived: + type 271, type 286/P radars

1942, Icarus, Ilex, Isis, Impulsive, Intrepid: - 1 x 5 - 533 TT; + 1 x 4 - 533 TT

1942 - 1943, Garland, Griffin, Hasty, Havock, Hero, Hotspur, Icarus, Ilex, Impulsive, Intrepid, Isis: - 2 x 4 - 12.7/62; + 2 x 1 - 20/70 Oerlikon Mk II/IV

1943, Hero: - 2 x 1 - 120/45, type 124 sonar; + 1 x 24 - 178 Hedgehog ASWRL, 2 DCT (70 - 125 DC), type 144 sonar

1943, Hotspur, Icarus: - 2 x 1 - 120/45, 1 x 1 - 76/45, type 124 sonar; + 1 x 24 - 178 Hedgehog ASWRL, 2 DCT (70 - 125 DC), type 144 sonar

1943, Garland: - 1 x 1 - 120/45, 1 x 1 - 76/45, type 121 sonar; + 2 x 1 - 57/40 6pdr Hotchkiss Mk I, 1 x 24 - 178 Hedgehog ASWRL (70 - 125 DC), type 144 sonar

1943, Griffin: - 1 x 1 - 120/45, 1 x 1 - 76/45, type 121 sonar; + 1 x 24 - 178 Hedgehog ASWRL (70 - 125 DC), type 144 sonar

1943, Ilex, Isis, Impulsive, Intrepid: - 2 x 1 - 120/45, 1 x 1 - 76/45, type 124 sonar; + 2 x 1 - 57/40 6pdr Hotchkiss Mk I, 1 x 24 - 178 Hedgehog ASWRL, 2 DCT (70 - 125 DC totally), type 144 sonar

1943 - 1944, Garland, Hotspur, Icarus, Chaudiere, Ilex, Impulsive, Intrepid, Isis: - 2 x 1 - 20/70; + 2 x 2 - 20/70 Oerlikon Mk II/IV

1943 - 1944, almost all survived: - type 286/M/P radar; + type 291 radar

1944, Ottawa: - 4 x 1 - 20/70; + 4 x 2 - 20/70 Oerlikon Mk II/IV

1944, Chaudiere: - 1 x 24 - 178 Hedgehog ASWRL; + 1 x 1 - 120/45 QF Mk IX

late 1944, Icarus: - 1 x 24 - 178 Hedgehog ASWRL; + 1 x 1 - 120/45 QF Mk IX, 2 x 12 - 178 Split Hedgehog Mk II ASWRL

9/1946, Garland: 2 x 1 - 120/45 CP Mk XVII, 2 x 1 - 57/40 Mk VI, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 4 - 533 TT, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 1 DCR (125), type 271, type 291 radars, type 144 sonar

1/1946, Hotspur: 2 x 1 - 120/45 CP Mk XVIII, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 4 - 533 TT, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 1 DCR (125), type 271, type 291 radars, type 144 sonar

1/1946, Icarus: 3 x 1 - 120/45 CP Mk XVIII, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 4 - 533 TT, 2 x 12 - 178 Split Hedgehog Mk II ASWRL, 4 DCT, 1 DCR (125), type 271, type 291 radars, type 144 sonar

1/1946, Ilex: 2 x 1 - 120/45 CP Mk XVIII, 2 x 1 - 57/40 Mk VI, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 4 - 533 TT, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 1 DCR (125), type 271, type 291 radars, type 144 sonar

1/1946, Impulsive: 2 x 1 - 120/45 CP Mk XVIII, 2 x 1 - 57/40 Mk VI, 2 x 2 - 20/70 Mk V, 2 x 1 - 20/70 Mk III, 1 x 4 - 533 TT, 1 x 24 - 178 Hedgehog ASWRL, 4 DCT, 1 DCR (125), type 271, type 291 radars, type 144 sonar

Naval service

Gipsy 21.11.1939 was mined in a mouth of Thames and ran ashore. Glowworm 8.4.1940 was sunk by gunfire of German cruiser Admiral Hipper W of Trondheim. Hunter 10.4.1940 was sunk by German destroyers Zenker, Giese and Koellner near Narvik. Grafton 29.5.1940 was torpedoed by German submarine U62 at Dunkirk, after two hours she was abandoned. Grenade 29.5.1940 was badly damaged by German Ju 87 bombers at Dunkirk, abandoned and in some hours has blown up. Gallant 29.5.1940 was damaged by near misses of air bombs and then by magnetic mine at Dunkirk, repair lasted some months. She stranded off La Valetta 10.1.1941 after being stricken by Italian mine, put on repair, during it damaged by German bombers 5.2.1942 and never repaired again, further used as a hulk and scuttled in September, 1943. Imogen 16.7.1940 sunk as a result of collision with cruiser Glasgow near Orkney Islands. Hostile 23.8.1940 was badly damaged by Italian mine in 18nm SE of Cape Bon, abandoned by crew and torpedoed by destroyer Hero. Ivanhoe 1.6.1940 was badly damaged by bomb hit amidships and repaired 2 months, she was 1.9.1940 stricken by a mine at Dutch coast, abandoned by crew and sunk by destroyer Kelvin. Hyperion 22.12.1940 was stricken by Italian mine NE of Cape Bon, abandoned by crew and torpedoed by destroyer Ilex. Greyhound 22.5.1941 was sunk by German Ju 87 bombers off Crete. Hereward 29.5.1941 was sunk by German Ju 87 bombers E of Crete. Imperial 29.5.1941 was abandoned by crew off Crete because of manoeuvrability loss and sunk by torpedo of destroyer Hotspur: steering gear has been damaged by a close bomb miss from German Ju 87 bomber day before. Havock 5.4.1942 wrecked on the rock at 30kts speed near Kelibia and abandoned by the crew, she was torpedoed by Italian submarine Aradam 6.4.1942. Hasty 15.6.1942 was torpedoed by German MTB S55, abandoned by crew and sunk by destroyer Hotspur 80nm NW of Derna. Intrepid 29.5.1940 was badly damaged by direct hit of German air bombs to engine room and repaired some months, 26.9.1943 she was badly damaged by German Ju 88 bombers at Leros Island in Aegean Sea and foundered 27.9.1943. Isis 20.7.1944 was sunk by German Neger human torpedo in Seine mouth.