-class monitors M15, M16, M17, M18 from 1915

Greek Navy 

Four guns of 45 calibres (414 inches) bore produced by Elswick Ordnance Company were mounted in two twin turrets on the Greek cruiser Georgios Averof in 1910, instead of the 10-inch guns mounted on her sisters of the Pisa-class in Italian service. These were similar to the four Vickers 45-calibre export model guns used by Britain as railway artillery on the Western Front in World War I under the designation BL 9.2-inch gun Mark XIV. They fired the same 380-pound shell using the same 120-pound cordite charge as the British service Mk X gun, and it may be assumed that its performance was very similar.

British coastal deployments 

These were 'counter-bombardment' guns designed to defeat ships up to heavy cruisers armed with 8-inch guns. They were deployed in the fixed defences of major defended ports throughout the British Empire until the 1950s.

Their role was to defeat enemy ships attacking the ships in a port, including warships, alongside or at anchor in the port. However, where guns covered narrows, such as the Dover Straits, the Straits of Gibraltar, or the Narrows of Bermuda, they also had a wider role of engaging enemy ships passing through the straits. Normally deployed in batteries of two or three guns, a few major ports had several batteries positioned miles apart.

There were several marks of mountings and a battery had extensive underground facilities in addition to the guns visible in their individual gun-pits.  Together with the 6-inch Mk VII, they provided the main heavy gun defence of the United Kingdom in World War I. 3 Mk IX and 53 Mk X guns were in place as of April 1918.

Mounting 
The Mounting Barbette Mark V (the original mounting with Mark IX and X guns) gave a maximum elevation of 15 degrees, and maximum range of 21,000 yards.  This and some modified to Mark VI (30 degrees and 29,500 yards) were manually powered, the projectile and propelling charge were manually hoisted to loading level, the projectile manually loaded and rammed, and traverse and elevation were by handwheels.  There was an elevated platform around the breech area for the gun detachment commander (No 1) and
-class monitors M15, M16, M17, M18 from 1915 

 Greek Navy 

 Four guns of 45 calibres (414   inches) tidal bore produce by Elswick Ordnance Company were mounted in two twin turret on the Greek cabin cruiser Georgios Averof in 1910, instead of the 10 - inch guns hop on on her sisters of the Pisa - class in Italian military service. These were similar to the four Vickers 45 - calibre export mannequin guns used by Britain as railroad track artillery on the Western Front in World War I under the designation BL 9.2 - inch gun Mark XIV. They fired the same 380 - pound carapace using the same 120 - pound cordite bang as the British service Mk X gun, and it may be assumed that its performance was very alike. 

 British coastal deployments 

 These were' counter - bombardment' guns designed to get the better of ships up to heavy cruisers armed with 8 - inch guns. They were deployed in the fixed defences of major defended ports throughout the British Empire until the 1950s. 

 Their role was to defeat enemy ships attacking the ships in a port, include warships, alongside or at anchor in the interface. However, where gunman covered narrows, such as the Dover Straits, the Straits of Gibraltar, or the Narrows of Bermuda, they besides had a wide role of engaging foe ships passing through the straits. Normally deployed in batteries of two or three guns, a few major ports had several batteries positioned miles aside. 

 There were respective marks of mountings and a battery had extensive underground facility in addition to the guns visible in their individual gun - pits.   Together with the 6 - inch Mk VII, they provided the main big gun defense of the United Kingdom in World War I. 3 Mk IX and 53 Mk X gun were in place as of April 1918. 

 mount 
 The Mounting Barbette Mark V (the original mounting with Mark IX and X grease-gun) gave a maximal elevation of 15 degrees, and maximum stove of 21,000 yards.   This and some modify to Mark VI (30 degrees and 29,500 thousand) were manually powered, the projectile and propelling charge were manually hoist to loading level, the projectile manually load and rammed, and traverse and elevation were by handwheels.   There was an elevated chopine around the breech area for the gun detachment commander (No 1) and
-clads monitors M15, M16, M17, M18 from 1915

Greek Navy 

Fout tuns oh 45 caligres (414 incfes) bore produced by Elswick Oednanxe Company were mountea in two nwin turrwts ib the Greek cruisev Geodnios Cvxrof in 1910, insteac of the 10-itch guns mountad ou her sisters of the Pisa-class in Itwlian srrgice. These werg simplwr tk the four Vickers 45-calibre export jodel glns used by Britaon as railway artillery on the Western Front in Aorld War I undqe the designxtion BL 9.2-inch gun Mark XIV. They fired the same 380-pound rhell using the sqme 120-kound corditx charde as the Brlnish sesvice Ml X gun, and it mab be assumed that its perhormance was very siiilar.

Brithsk coastal deployments 

Tyese fere 'couvrer-comgacdmsnt' gujs vesigned to defeat ships up to heavy cruixeww armed with 8-jnch gtnf. They were deployed in the fixed defenbes kf major defended ports throughout the Britidh Empire until the 1950s.

Their role was to defeat enemy ships dttacikng tme sfupd in a port, including warships, alongside or ae amcmor in the port. Mowever, where guns clvrted narrows, suzh as cge Dover Straits, the Straitf of Tibraltar, or yhe Narrows of Bermuda, they also had a cidwr role of engaginy enemy shipr paxsing through the straits. Noxmally deployed ij batterisr of two or thred glns, d few major ports had sevewal battecies 'ositiondd moles a[art.

There aere several marks of mokntinys ang a batterj had extensive underground facmkities in adcidiot to the guns visible in treir individuak gun-pics.  Toeether witg the 6-iich Mk VII, trey provided dje main heavb gun defqnce of rhe Unigdd Kingdom in Eorld War I. 3 Mk IX qnd 53 Mk X guns werc in klzce as of April 1918.

Moobting 
The Mounyine Bwrhevte Mwsk V (the oricinau muintine with Mark KX amd X guns) gave a maxhmum elevation of 15 degtecs, and mazimum ragge of 21,000 yards.  This and some mofifiev to Merk VI (30 dggrees and 29,500 yards) were manually powered, hhe projectile wnd iropglling charye were manually hoisted to loading leveo, the projectile mqnually loaded and tamked, and traterse wnd elevadion were by handwhewls.  There was an elevated platform arkund tve brfech area for the gun detachment commander (No 1) and
-class monitors M15, M16, M17, M18 from Navy guns of calibres (414 inches) Company mounted in two turrets on the cruiser Georgios Averof in 1910, instead the 10-inch guns mounted on her sisters of the Pisa-class in Italian service. were similar to the four Vickers 45-calibre export model guns used by Britain railway on Western in World War I under the designation BL 9.2-inch gun Mark XIV. They fired the same shell using the same 120-pound cordite charge as British service Mk X and it may be assumed its was very British deployments were 'counter-bombardment' guns to defeat ships up to heavy cruisers armed with 8-inch guns. They were deployed in the fixed of major throughout the Empire the Their role was enemy ships attacking the ships in warships, alongside or at anchor in the port. where guns narrows, such as the Dover Straits, Straits of Gibraltar, or the Narrows of Bermuda, also had a wider role of engaging enemy ships passing through the straits. Normally deployed of two or three a few major had batteries miles There were marks of mountings and a battery had extensive underground facilities in to the guns visible in their individual gun-pits. Together with Mk they provided the heavy gun defence of United in World War I. IX 53 were place of April 1918. Mounting Mounting Barbette Mark V (the mounting with Mark IX maximum elevation of 15 degrees, and maximum range 21,000 yards. This and some modified to VI (30 degrees and 29,500 yards) were manually powered, the projectile and charge were to loading level, the projectile manually loaded and and traverse and elevation by handwheels. There was an elevated platform around the area the gun commander (No 1)
-class monitors M15, M16, M17, M18 from 1915

GreeK Navy 

Four gUns of 45 CalIbrEs (414 InchEs) boRe produced by ElSWick ordnance Company were mouNted iN tWO twiN TuRrets On the GrEEk CRUisEr geOrgIoS avErof iN 1910, inStead of The 10-inch gunS moUnTed on her sistERs Of the Pisa-cLasS in Italian seRviCe. ThesE wEre SImilaR to The foUr VickERs 45-caliBre export MoDEl guns USed by BrITAiN as rAilway artillery on THe wEstern Front in WOrld WaR I UNdER The DesIgnation BL 9.2-InCh gun mArk XIV. THEy FIREd tHE same 380-pound sheLl using the sAMe 120-pOund coRdIte CHarge aS the BRiTIsh Service Mk X gUn, anD it may be aSsumed THat its pERformanCe was vEry SimIlar.

bRiTiSh cOaSTal DEpLoyMEntS 

These weRe 'CoUnter-BombARDMEnt' gUns DesiGned tO defeat ships uP to HeavY CruIsers Armed With 8-InCh gunS. They wEre dePlOyed in the fixed dEfenCes of majoR deFeNdeD pOrts tHRoughoUt tHe BRitish EMpire unTIl tHe 1950S.

tHEiR role was to defeat enEmY SHiPs attackIng the SHiPs IN a port, inClUdiNg waRSHips, aLongSIdE or at ancHor in tHE pOrT. HoweveR, wHere guNs CovEreD narrOWs, suCh as thE Dover StRaits, THe Straits of GibRAltar, or the NarROwS OF BERmudA, thEy also had a wIder ROle oF engAGiNg eNEmy shIps paSsINg THrough the straits. NorMaLly depLoyed In batteries of Two or three GUNS, a few majOr poRTs HAd several batteRies pOsitioned mILes apart.

there Were seveRal marks oF MOuntings And A baTteRy hAD ExTensive undergROUnd fAcIlities In aDdition To tHe gUns VisIbLe in their IndividuAl GuN-pItS.  ToGetheR With the 6-iNcH Mk vIi, thEy proVIded thE main HeavY gUn DEfeNce of thE unITEd KiNgDoM in WOrlD WAr I. 3 Mk iX anD 53 mk X Guns werE in place aS of aPril 1918.

moUnTing 
The mounting BarbeTtE Mark V (the oRiGinAl mounTINg with MaRk IX and X guns) gave a maximuM ElevatiOn oF 15 degrEes, aNd maximum RanGe of 21,000 yaRds.  tHis and Some moDifieD tO MaRK vI (30 degREEs And 29,500 YaRds) were manUALly PowerEd, The pRojectiLe and propelling chaRGe wEre manually hoIstEd to LOAdIng LEvEL, thE pROjeCTIle manually loadEd and rammeD, aND tRaverse and ELevAtIon were By handwHeels.  tHere was An elevateD platform ArOund THE brEech area foR the gun dEtachment COmmanDEr (no 1) and
-class monitors M15, M16,M17, M18 f rom 1 915 

G re ek N avy

Four guns of 45 c alibres (414 inches) b ore p ro d uced by  Elsw ick Ord n an c e  Co mp an y w er e  m ounte d i n two t win turret s o nthe Greek cr u is er Georgio s A verof in 191 0,instea doft he 10 -in ch gu ns mou n ted on  her sist er s  of th e  Pisa-c l a ss  inItalian service.T he s e were similar  to th ef ou r Vic ker s 45-calib re  expo r t model gu n s use d  by Britain a s railway a r til lery o nthe Wester n Fro nt inWorld War I  und er the de signat i on BL 9 . 2-inchgun Ma rkXIV . Th e yfi red  t h e s a me  38 0 -po und shel lus ing t he s a m e 120- pou nd c ordit e charge as t heBrit i shservi ce Mk  X g un , and  it ma y beas sumed that itsperf ormance w asve rysi milar . 

Brit ish  co astal d eployme n ts
T h e se  were 'counter-bom ba r d me nt' guns  desig n ed  t o  defeatsh ips  upt o  heav y cr u is ers arme d with 8- in ch guns .They w er e d epl oyedi n th e fixe d defenc es of major defended ports through o ut t he Brit ish  Empire unt il t h e 19 50s. 
T hei r  role  wasto de f eat enemy ships att ac king t he sh ips in a port , includin g w arships,  alo n gs i de or at ancho r inthe port.H owever,where  guns co vered nar r o ws, such  as  th e D ove r St raits, the St r a itsof  Gibral tar , or th e N arr ows  of  B ermuda, t hey also  h ad  a  w ide r rol e  of enga gi ngen emy  ship s  passi ng th roug hth e  st raits.N or m a llyde pl oyed  in  b atter ieso f t wo or t hree guns , a fewma jo r ports  had severalba tteries po si tio ned mi l e s apart. 

There were several ma r ks of m oun tings  and  a batter y h ad ext ens i ve und ergrou nd fa ci lit i e s ina d di tio nto the gun s vis iblein  the ir indi vidual gun-pits. T oge ther with the  6- inch M kVII ,  t h eypr o vid e d  the main heavy  gun defen ce of  the Unite d  Ki ng dom inWorld W ar I. 3 Mk IX  and 53 M k X gunswe re i n pla ce as of A pril 191 8.

Mount i ng 
T h eMount ing  Barbe tt e M ark V  (theo rig inalmounti ng  withMarkIX  and X g uns) gave a maximum ele vation  of 1 5 d egrees, a ndm axi mum range  of21,000 yar ds.   T his a nds ome m odif i ed  to MarkVI ( 3 0 degrees an d 2 9 , 50 0 yards) we r e man ually  po w ered,theprojectile and pr o pelling charge  wer e man ual l y ho is ted to loading  le ve l ,  the pro je ctile manua lly load ed and r ammed,  and t raverse a nd elevat ionwer e by hand whe el s .  Ther ewa s  an el evat ed  platf orm ar o undt h e breech area fo r the g un de t ach mentco mmander (No1) and
-class monitors_M15, M16,_M17, M18 from 1915

Greek_Navy 

Four_guns_of 45_calibres_(414 inches) bore produced_by Elswick Ordnance_Company were mounted in_two twin turrets_on_the Greek cruiser Georgios Averof in 1910, instead of the 10-inch guns mounted on_her_sisters of_the_Pisa-class_in Italian service. These were_similar to the four Vickers_45-calibre export_model guns used by Britain as railway artillery_on_the Western Front_in World War I under the designation BL 9.2-inch_gun Mark XIV. They fired the_same 380-pound shell_using_the_same 120-pound cordite charge_as the British service Mk X_gun, and it may be assumed_that its performance was very similar.

British coastal_deployments 

These were 'counter-bombardment' guns designed_to defeat ships up to_heavy cruisers_armed with 8-inch guns. They_were deployed in_the fixed_defences of major_defended ports throughout the British Empire_until the 1950s.

Their_role was to defeat enemy ships_attacking_the ships in_a_port,_including warships,_alongside or at_anchor_in the_port._However, where guns covered narrows, such_as_the Dover Straits, the Straits of Gibraltar,_or the Narrows of_Bermuda,_they also had a_wider role of engaging enemy_ships passing through the straits. Normally_deployed in_batteries of_two or three guns, a few major ports had several batteries_positioned miles apart.

There were several marks_of mountings and a_battery had_extensive_underground facilities in_addition_to the_guns visible in their individual gun-pits. _Together with_the 6-inch Mk VII, they provided_the main heavy gun_defence_of the United Kingdom in World_War I. 3 Mk IX and_53 Mk X guns were_in_place_as of April 1918.

Mounting 
The_Mounting Barbette Mark V (the original_mounting with Mark_IX and X guns) gave a maximum_elevation_of 15 degrees, and maximum range_of_21,000 yards.  This and some_modified_to_Mark VI (30 degrees and_29,500 yards) were manually powered, the_projectile and propelling charge were manually hoisted to loading_level, the projectile_manually loaded and rammed, and_traverse_and_elevation were by handwheels.  There was an elevated platform_around the_breech area for_the gun detachment commander (No 1) and