Sunday 18 October 2020

The Type 31 "Frigate": Roles

 
 
 
The Royal Navy is currently procuring five Type 31 surface combatants,costing two thousand million pounds,as replacements for five Type 23 or Duke class frigates,here we shall consider which roles these new vessels shall be suited to.
 
 
 
The most basic of the major warships shall be the humble Albatross class naval cutters,chartered to the Waterguard service,which shall be forward deployed in often remote locations to perform civil tasks such as law enforcement,pollution control,research and life saving.
 
 
 
Whilst the Type 31's size and diesel propulsion shall give them reasonable range,endurance,speed and sea keeping for Waterguard cutter tasks,their complex weapons and sensors shall create large crew and maintenance requirements,neither of which is desirable for vessels which must spend long periods far from a naval dockyard.

 
 
The Fishery Protection Squadrons' patrolling brigs shall be more complex vessels than the Waterguard cutters,for which they shall provide distant cover,carrying an armoured turret containing two Five and a Half Inch Naval Guns and able to fire three short tons of projectiles per minute to a range of forty miles for engaging land targets,providing local area air defence against subsonic targets,providing point air defence against supersonic targets and crippling or destroying any surface vessel of any size or type currently in service.

 
 
The Type 31's hull,machinery and sensors shall be adequate for the role of a patrolling brig,however,their Bofors 57 Mark 3 guns shall be out classed by the armament of cruisers,destroyers,frigates,corvettes and patrol vessels operated by Russia,China,Iran,North Korea,Argentina,Cuba,Venezuela,Spain and,even,the Republic of Ireland (not to mention Syrian coastal defence guns) making them incapable of protecting the United Kingdom's shipping by seeing off foreign warships or of providing useful fire support to marines.

 
 
The sloop shall be a more sophisticated vessel than the patrolling brig,intended to perform a variety of specialised tasks such as mining and hydrographing in addition to performing all of the roles of the brig.

 
 
The Type 31's shall lack the space necessary to accommodate specialised equipment such as the Eighty Foot Mine Hunting Launch and the large sonars used for surveying,in addition to their inadequacies in the patrolling brig role.
 
 
 
The destroying frigate shall be the most sophisticated of the surface combatants,being able to destroy sea (both on and below the surface),air,land and even space targets in the case of fully upgraded vessels,with missiles,guns and torpedoes whilst also carrying helicopters,boats,vehicles and marines.
 
 
 
The Type31s,despite being based on the design of a "credible frigate",shall have no ability to engage submarines,such as those used by Russia,China,Iran,North Korea,Argentina,Cuba,Venezuela,Spain and,even,drug cartels,due to their lack of a suitable sonar suite and shall be unsuited to engaging land and sea surface targets due to their small calibre guns and lack of heavy missiles.

 
 
The Type 31s shall be able to provide local area air defence to high value assets,such as the Queen Elizabeth class flying ships,with their twelve Sea Ceptor missiles,provided there is no submarine,surface ship or land based threat (either due to a lack of enemy assets or the presence of friendly frigates) but the same effect might be achieved at a fraction of the cost by adding more effective Stand Alone Defensive Systems and missiles to those high value assets,which already have the systems to support them.

 
 
Some have suggested that the Type 31 shall be suitable for dealing with,near mythical,"small boat swarms" but such a threat is best dealt with at long range by combat aircraft or helicopters,as the Royal Navy has proven,or,as the United States' Ship Vincennes demonstrated,with a larger calibre gun rather than at very short ranges with a smaller gun.

 
 
The Schleswig-Holstein opening,should permit small boats to get close to a Type 31 in peace time before beginning a war by attacking it but that is somewhat unlikely as it would require the enemy to keep their armed forces on a war footing,without anyone noticing,whilst waiting for the uncertain outcome of a small boat attack on a low value target to initiate combat operations.

 
 
A terrorist small boat attack such as that on the United States' Ship Cole shall be far more likely but Bofors guns are not the most appropriate way to deal with a threat which may be avoided simply by using secure harbour facilities,a lesson which the Royal Navy often seems to forget.

 
 
The Bofors 57 Mark 3 shall add a fourth short range air defence system to the Type 31 class which shall also have two Bofors 40 Mark 4s (which shall at least be well positioned,a refreshing change for the Royal Navy) and Sea Ceptor missiles,but these Bofors guns shall be funded at the expense of more useful systems such as sonars,torpedoes,larger calibre guns and heavy missiles.

 
 
The United States' Navy also uses the Bofors 57 Mark 3,which it calls the Mark 110,and,despite having "concluded that the MK46 was more effective than the MK110" (the ballistically literate consider this improbable),intends to fit them to it's new Constellation class frigates,which shall otherwise be rather more credible than the Type 31s,incidentally the Mark 46 uses the same 30mm gun found on many Royal Navy warships and our proposed Type 23M or Royal Duke class.

 
 
An earlier generation of American "frigates" (American frigates have somewhat different origins to the Royal Navy's),the Perry class,carried the short ranged 76mm Mark 75 gun which saw very little combat use.

 
 
In contrast,the longer ranged and harder hitting 4.5-inch Mark 8 gun is one of the most frequently used weapon systems carried by Royal Navy frigates and destroyers,having engaged aircraft,missiles,ships and land targets in Iraq,Libya and particularly the Falklands,where land based artillery was subject to severe logistical constraints and little air support was available for ground troops.

 
 
Had the Type 31s been designed to carry the 4.5-inch Mark 8 naval gun,like our proposed Royal Duke class,then they should have been able to out gun most naval patrol vessels and also usefully engage land targets,in addition to having superior air defence capabilities,but with the Bofors 57mm Mark 3 as a main gun they shall be little more than "Faux Frigates" (F.F.31) which shall look like real warships but be unable to perform their roles.

 
 
It is noteworthy that the Royal Navy decided to adopt the previously alien Bofors 57 Mark 3 shortly after agreeing to closer collaboration with the United States' Navy,there is then a possibility that the Type 31s have been rendered useless in the name of Americanisation.
 

Sunday 11 October 2020

The V-22 Osprey: Carrier Onboard Delivery

 
 
 
Carrier Onboard Delivery aircraft transport people and cargo between air bases on land and the decks of aircraft carriers at sea.
 
 
 
The United States' Navy has recently ordered the CMV-22B Osprey aircraft to replace it's doughty Greyhound Carrier Onboard Delivery aircraft.
 
 
 
There have been suggestions that the United Kingdom should procure Osprey Carrier Onboard Delivery aircraft for it's new Queen Elizabeth class flying ships.
 
 
 
Even a small fleet of such aircraft could cost hundreds of millions of pounds per year or tens of thousands of millions of pounds over the fifty year service life of the Queen Elizabeth class.
 
 
 
For hundreds of years Royal Navy warships have operated without such logistic support and they continue to do so today.
 
 
 
The need to deliver engines for the Lightning II aircraft to flying ships at sea is often cited to justify Royal Navy procurement of Osprey Carrier Onboard Delivery aircraft.
 
 
 
However,Pratt & Whitney F135 engines may be delivered to the Queen Elizabeth class flying ships by the Merlin helicopters which are already in service with the Royal Navy.
 
 
 
They may also be delivered to the ship by our proposed Super Merlin helicopters which shall have greater range than the current Merlin thanks to their more efficient engines and higher useful load.
 
 
 
The proposed Hermes or Ultra Merlin helicopters shall be able to deliver Pratt & Whitney F135 engines to the Queen Elizabeth class flying ships at even greater ranges than the Super Merlin as their composite airframes shall reduce drag by integrating external equipment whilst providing greater volume for fuel beneath the floor of their lengthened cabins.
 
 
 
There shall be no need to use any aircraft to deliver engines to the Queen Elizabeth class flying ships if they are delivered by a replenishing ship like the Royal Fleet Auxiliary Fort Victoria which has a Heavy Replenishment At Sea system capable of handling the Pratt & Whitney F135.
 
 
 
There shall also be no need to deliver aircraft engines to the Queen Elizabeth class flying ships at sea if those ships are loaded with an adequate number of spare engines before they leave port.
 
 
 
An adequate supply of spare Pratt & Whitney F135 engines shall cost a great deal less than a fleet of Osprey Carrier Onboard Delivery aircraft.