Posts Tagged ‘Boeing’

BOEING P-8I NEPTUNE [K65298] 03The Boeing P-8 Poseidon (ALSO modified as neptune for indian navy) (formerly the Multimission Maritime Aircraft or MMA) is a military aircraft currently being developed for the United States Navy (USN). The aircraft is being developed by Boeing Defense, Space & Security, modified from the 737-800.

The P-8 is intended to conduct anti-submarine warfare (ASW) and shipping interdiction and to engage in an electronic intelligence (ELINT) role. This will involve carrying torpedoes, depth charges, SLAM-ER anti-ship missiles, and other weapons. It will also be able to drop and monitor sonobuoys. It is designed to operate in conjunction with the Broad Area Maritime Surveillance unmanned aerial vehicle. The P-8 has also been ordered by the Indian Navy.

Derivatives

Boeing approached the U.S. Air Force in 2010 about replacing the E-8C Joint STARS fleet with a modified version of the P-8 at the same cost Northrop Grumman proposed for re-engining and upgrading the E-8s. The proposed version is named P-8 Airborne Ground Surveillance (AGS) and would integrate an active electronically scanned array (AESA) radar, and have ground moving target indicator (GMTI) and synthetic aperture radar (SAR) capabilities.

The main distinguishing feature of the P-8 AGS is pod-mounted radar, fixed to the lower centerline of the fuselage; the pod is lowered so the engine nacelles do not interrupt the radar’s line of sight. Two aft ventral fins on lower aft provide stability for the aircraft. The P-8 AGS also uses the P-8A’s Raytheon AN/APY-10 multi-mission surface search radar.Boeing has campaigned for a fleet of P-8 AGS aircraft instead of re-engining the E-8s. The Air Force’s Analysis of Alternatives (AoA) of the JSTARS platform began in March 2010 to review options for performing the JSTARS mission. An initial decision on the AOA was expected in September 2011

The P-8 is a militarized version of the 737-800 with 737-900-based wings. The airframe uses a 737-800-based fuselage that is similar to but longer than the 737-700-based C-40 Clipper. The P-8 has a strengthened fuselage and 767-400ER-style raked wingtips, instead of the blended winglets available on 737NG variants. The five operator stations (two Naval Flight Officers plus three enlisted Aviation Warfare Operators/Naval Aircrewman) are mounted in a sideways row, along the port side of the cabin. None of these crew stations have windows. One observer window is located on each side of the forward cabin.

The P-8 features the Raytheon APY-10 multi-mission surface search radar.[29] The P-8I will feature an international version of the APY-10. A short bomb bay for torpedoes and other stores opens behind the wing. The aircraft also includes six additional body fuel tanks for extended range from Marshall Aerospace; three of the tanks are located in the forward cargo compartment and three in the rear. In-flight refueling is via a receptacle on top of the forward fuselage, just aft of the cockpit.

In U.S. service, the Poseidon will be complemented by the Broad Area Maritime Surveillance UAV system, which will provide continuous surveillance. The system is expected to enter service around 2010. Around 40 UAVs based on the RQ-4 Global Hawk will be used in the program. Because of the cancellation of Lockheed Martin’s Aerial Common Sensorproject, Boeing will propose a signals intelligence variant of the P-8 to service the requirement for the U.S. Navy.

INDIA

In January 2008, Boeing proposed the P-8I, a customized export variant of the P-8A, for the Indian Navy. On 4 January 2009, India’sMinistry of Defence signed an agreement with Boeing for the supply of eight P-8Is at a total cost of US$2.1 billion. These aircraft would replace Indian Navy’s aging Tupolev Tu-142M maritime surveillance turboprops. Each aircraft has an average cost of about US$220 million. The deal makes India the first international customer of the P-8, and also marks Boeing’s first military sale to India. In October 2010, India’s Defence Acquisition Council of the Ministry of Defence approved the purchase of four additional P-8Is. In March 2011, it was reported that India was to order four additional P-8s from Boeing later in the year. India plans to order another 12 P-8Is at a later time.

The Data Link II communications technology for the P-8I was received by Boeing from Bharat Electronics Limited in April 2010. The communications system will enable exchange of tactical data and messages between Indian Navy aircraft, ships and shore establishments. Boeing will install the system during P-8I final assembly. The IFF, system from BEL was also handed over to Boeing for integration with P-8I in December 2010.

Flight testing of P-8Is began in July 2012, with deliveries planned to start in 2013. The first P-8I was handed over to an Indian naval team at the Boeing facility at Seattle on 19 December 2012. The Indian Navy is to fly it to India along with the second and third aircraft after they handed over in May and June of next year.

Indian Navy has 8 P-8I aircraft on order; deliveries began in December 2012.

Specifications (P-8A)boeingp81

General characteristics

  • Crew: Flight: 2; Mission: 7
  • Length: 129 ft 5 in (39.47 m)
  • Wingspan: 123 ft 6 in (37.64 m)
  • Height: 42 ft 1 in (12.83 m)
  • Empty weight: 138,300 lb (62,730 kg)
  • Max. takeoff weight: 189,200 lb (85,820 kg)
  • Powerplant: 2 × CFM56-7B turbofan, 27,000 lbf (120 kN) each

Performance

  • Maximum speed: 490 knots (907 km/h)
  • Cruise speed: 440 kn (815 km/h)
  • Range: 1,200 nmi (2,222 km) 4 hours on station (Anti-submarine warfare mission)
  • Service ceiling: 41,000 ft (12,496 m)

Armament

  • (5 internal and 6 external) SLAM-ER missiles, Mines and Torpedoes.

Avionics

  • Raytheon APY-10 multi-mission surface search radar
  • (Advanced Airborne Sensor surface search radar and SIGINT package to be follow on system)

COURTESY ;http://en.wikipedia.org/wiki/Boeing_P-8_Poseidon

                    
Role Strategic/tactical airlifter
National origin United States
Manufacturer McDonnell Douglas / Boeing
First flight 15 September 1991
Introduction 14 July 1993
Status In production, in service
Primary users United States Air Force
Royal Air Force
Royal Australian Air Force
Royal Canadian Air Force
Number built 241 as of March 2012
Unit cost US$218 million
Developed from McDonnell Douglas YC-15

The Boeing C-17 Globemaster III is a large military transport aircraft. It was developed for the United States Air Force (USAF) from the 1980s to the early 1990s by McDonnell Douglas; the company later merged with Boeing. The C-17 is used for rapid strategic airlift of troops and cargo to main operating bases or forward operating bases throughout the world. It can also perform tactical airlift, medical evacuation and airdrop missions. The C-17 carries the name of two previous, but unrelated piston-engine, U.S. military cargo aircraft, theDouglas C-74 Globemaster and the Douglas C-124 Globemaster II.

In addition to the U.S. Air Force, the C-17 is operated by the United Kingdom, Australia, Canada, Qatar, United Arab Emirates and NATOHeavy Airlift Wing. Additionally, India has ordered the C-17s.

Design

The C-17 is 174 feet (53 m) long and has a wingspan of about 170 feet (52 m). It can airlift cargo fairly close to a battle area. The size and weight of U.S. mechanized firepower and equipment have grown in recent decades from increased air mobility requirements, particularly for large or heavy non-palletized outsize cargo.

The C-17 is powered by four Pratt & Whitney F117-PW-100 turbofan engines, which are based on the commercial Pratt and Whitney PW2040 used on the Boeing 757. Each engine is fully reversible and rated at 40,400 lbf (180 kN) of thrust. The thrust reversers direct engine exhaust air upwards and forward, reducing the chances of foreign object damage by ingestion of runway debris, and providing enough reverse thrust to back the aircraft up on the ground while taxiing. The thrust reversers can also be used in flight at idle-reverse for added drag in maximum-rate descents.

The aircraft requires a crew of three (pilot, copilot, and loadmaster) for cargo operations. Cargo is loaded through a large aft ramp that accommodates rolling stock, such as a 69-ton (63-metric ton) M1 Abrams main battle tank, other armored vehicles, trucks, and trailers, along with palletized cargo. The cargo compartment is 88 feet (26.82 m) long by 18 feet (5.49 m) wide by 12 feet 4 inches (3.76 m) high. The cargo floor has rollers for palletized cargo that can be flipped to provide a flat floor suitable for vehicles and other rolling stock.

Maximum payload of the C-17 is 170,900 lb (77,500 kg), and its Maximum Takeoff Weight is 585,000 lb (265,350 kg). With a payload of 160,000 lb (72,600 kg) and an initial cruise altitude of 28,000 ft (8,500 m), the C-17 has an unrefueled range of about 2,400 nautical miles (4,400 km) on the first 71 aircraft, and 2,800 nautical miles (5,200 km) on all subsequent extended-range models that include sealed center wing bay as a fuel tank. Boeing informally calls these aircraft, the C-17 ER. The C-17’s cruise speed is about 450 knots (833 km/h) (Mach 0.74). It is designed to airdrop 102 paratroopers and their equipment. The U.S. Army’s Ground Combat Vehicle is to be transported by the C-17.

The C-17 is designed to operate from runways as short as 3,500 ft (1,064 m) and as narrow as 90 ft (27 m). In addition, the C-17 can operate from unpaved, unimproved runways (although with greater chance of damage to the aircraft). The thrust reversers can be used to back the aircraft and reverse direction on narrow taxiways using a three- (or more) point turn.

  • Crew: 3: 2 pilots, 1 loadmaster
  • Capacity:
    • 134 troops with palletized seats or
    • 102 troops with standard centerline seats or
    • 36 litter and 54 ambulatory patients or
    • Cargo, such as an M1 Abrams tank, three Strykers, or 6 M1117 Armored Security Vehicles
  • Payload: 170,900 lb (77,519 kg) of cargo distributed at max over 18 463L master pallets or a mix of palletized cargo and vehicles.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Indian airforce has ordered 10 c-17 globemaster III with a further carry over order for 6 more of these aircrafts. this aircrafts would add to indias strategic air lift capabilities and enhance power projection also.