|
|
|
|
|
Nimrod is a development of the basic
Comet No 4C airframe that dates from the late 1940s. Both the
current variants are descended from the original Nimrod MR Mark 1
version (first flight May 1967) upgraded during the 1980s.
The first is the MR Mark 2P, which has been developed for long-range
maritime patrol. The Nimrod MR2 carries out three main roles;
Anti-Submarine Warfare (ASW), Anti-Surface Unit Warfare (ASUW) and
Search and Rescue (SAR).
Its long ferry range enables the crew to monitor maritime areas far
to the north of Iceland and up to 4,000 km out into the Western
Atlantic. With AAR (Air-to-Air Refuelling), its range and endurance
is greatly extended.
The MR2 is a very lethal submarine killer carrying the most up to
date sensors and data processing equipment linked to the weapon
systems. In addition to weapons and sonar-buoys, a searchlight
mounted in the starboard wing pod can be used for search and rescue
(SAR) operations. Crew members comprise 2 x Pilots and a flight
engineer operate the flight deck, 2 x Navigators, an Air Electronics
Officer (AEO), the sonobuoy sensor team of 3 x Air Electronic
Operators and 4 x Air Electronic Operators to manage a wide range of
avionics and weapon systems .
The second version is the R Mark 1, an aircraft specially fitted out
for the gathering of electronic intelligence and only three are
known to be in service. This is a highly secret aircraft that has
been in RAF service since 1971 and about which little is known
except that has been spotted on patrol over the Baltic Sea. The
Nimrod R1s are externally distinguishable from the maritime
reconnaissance version by the absence of the magnetic anomaly
detection tail booms and a distinctive pod on the leading edge of
the port wing. In-flight refuelling probes were added in 1982.
|
|
|
|
Under a £2.2 billion
contract in July 1996, the Nimrod upgrade programme involved 21
Nimrod MR2 aircraft to Maritime Reconnaissance Attack 4 (MRA4)
standard, together with training and integrated logistics support
packages.
The programme would involve the total replacement of the aircraft's
systems and over 80% of its airframe, resulting in the RAF
receiving back practically a new aircraft. There has been a
substantial programme cost escalation and considerable slippage. Numbers of MR4 to be
procured have reduced from 21 to 12 as a result of cost escalation.
The consequence of the Nimrod MRA4 in service date slip is that the
Nimrod MR2 will remain in service until at least mid-2010.
The operational impact of the slippage will be partly mitigated by
existing measures to introduce upgrades to some Nimrod MR2 systems,
notably Replacement Acoustic Processors (RAP), navigation systems,
datalinks and other communications to address inter-operability
issues.
Nimrod MR4A will have a reach extending to some 6,000 miles,
compared to the current MR2 capability of some 3,800 miles. Rolls
BR710 engines replace RR Spey engines. Other capability improvements
over MR2 include increased time on station, a major improvement in
overall sensor performance and weapon carrying capability. The new
digital, integrated mission system features the Searchwater 2000
radar, UYS503/AQS970 sonar, DASS 2000 ECM, and EL/L8300UK ESM. The
crew complement has reduced by 25%.
Weapons will include torpedoes (Tigerfish), AGM-84 Harpoon anti-ship
missiles (range 50 nautical miles) or AIM-9 Sidewinder air-to-air
missiles for defence against hostile aircraft.
Nimrod MR4A aircraft will be based at RAF Kinloss.
|
NIMROD
MR2 Specifications
|
| Crew
|
13
|
| Span
|
35m
|
| Height
|
9.08m
|
| Length
|
38.63m
|
| Max
All
Up Weight |
87,090kg |
| Max
Weapon Load |
10,000lb/4,500kg |
| Operating
Range |
3,800miles/6,080km |
| Endurance |
10-12hrs |
| Ferry
Range |
9,265km |
| Max
Speed |
575mph/926kph |
| Engines |
4 x Rolls Royce Spey RB 168-20 Mark 250
Turbofans |
| Armament |
Sidewinder
AIM-9 |
| |
Harpoon |
| |
9 x Mark 46 or Stingray
Torpedoes |
| |
Bombs |
In service with:
|
120 Squadron |
6 x Nimrod MR2 |
RAF Kinloss |
|
201 Squadron |
6 x Nimrod MR2 |
RAF Kinloss |
|
42 (Reserve) Squadron |
3 x Nimrod MR2 |
RAF Kinloss |
|
Note: This
group of units is known as the Kinloss Air Wing. We are reasonably
certain that there are approximately 15 aircraft in this group at
any one time. Aircraft are shown as being allocated to squadrons for
ease of accounting - real numbers may change almost daily.
|
|
51 Squadron |
3 x Nimrod R1 |
RAF Waddington |
Photos Copyright BAe
Systems
|