how strong was their air defense?
The Royal Navy describes the destroyers' mission as being "to shield the Fleet from air attack". It is equipped with the Sea Viper air-defence system utilizing the SAMPSON active electronically scanned array multi-function radar and the S1850M long-range radar. PAAMS is able to track over 2,000 targets and simultaneously control and coordinate multiple missiles in the air at once, allowing a large number of tracks to be intercepted and destroyed at any given time.
Advanced air-defence
The Royal Navy describes the destroyers' mission as being "to shield the Fleet from air attack".

The Type 45 destroyer is equipped with the Sea Viper (PAAMS) air-defence system utilizing the SAMPSON active electronically scanned array multi-function radar and the S1850M long-range radar. PAAMS is able to track over 2,000 targets and simultaneously control and coordinate multiple missiles in the air at once, allowing a large number of tracks to be intercepted and destroyed at any given time. 
what was one of the provisions of the petition of right (1628) No person should be forced to provide a gift, loan or tax without an Act of Parliament. what does the term "petition of right" refer to? It is an English constitutional document setting out specific individual protections against the state. who formulated it? Charles I what kinds of provisions does it have? No person should be forced to provide a gift, loan or tax without an Act of Parliament. No free individual should be imprisoned or detained unless a cause has been shown. Soldiers or members of the Royal Navy should not be billeted in private houses without the free consent of the owner. which period marked the age of sail for the navy mentioned above? During the reign of Henry VIII. do they have an escort fleet? Yes, there are six Type 45 destroyers and 13 Type 23 frigates in active service. what is type 45? It is also known as the D or "Daring" class. It is a class of six guided missile destroyers built for the United Kingdom's Royal Navy. did its engine face any trouble? On occasion there have been near-complete power generation failures, temporarily disabling propulsion, power generation for weapons, navigational systems and other purposes, leaving the ships vulnerable to "total electric failure".
They are primarily designed for anti-air warfare with the capability to defend against targets such as fighter aircraft and drones. The Type 45 destroyer is equipped with the Sea Viper (PAAMS) air-defence system utilizing the SAMPSON active electronically scanned array multi-function radar and the S1850M long-range radar. Type 45 destroyers are primarily designed for anti-air warfare with the capability to defend against targets such as fighter aircraft and drones as well as highly maneuverable sea skimming anti-ship missiles travelling at supersonic speeds.
Type 45 destroyer Type 45 destroyer Type 45 destroyer
Advanced air-defence Advanced air-defence Advanced air-defence
The Type 45 destroyers are primarily designed for anti-air warfare with the capability to defend against targets such as fighter aircraft and drones The Type 45 destroyer is equipped with the Sea Viper (PAAMS) air-defence system utilizing the SAMPSON active electronically scanned array multi-function radar and the S1850M long-range radar. The Type 45 destroyers are primarily designed for anti-air warfare with the capability to defend against targets such as fighter aircraft and drones as well as highly maneuverable sea skimming anti-ship missiles travelling at supersonic speeds.
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Type 45 destroyer [SEP] Advanced air-defence
This makes it particularly difficult to swamp PAAMS during a saturation attack, even if the attacking elements are supersonic. The US Naval War College has suggested that the SAMPSON radar is capable of tracking 1,000 objects the size of a cricket ball travelling at three times the speed of sound (Mach 3), emphasising the system's capabilities against high performance stealth targets. A core component of PAAMS is the Aster missile, comprising Aster 15 and Aster 30. MBDA describe Aster as a "hit-to-kill" anti-missile missile capable of intercepting all types of high performance air threats at a maximum range of 120 km.