Tag: B-2 Spirit Stealth Bomber

  • Long Range Strike Bomber – USAF Plays Close to the Chest

    Long Range Strike Bomber – USAF Plays Close to the Chest

    There is a new long range strike bomber being developed by the US Air Force. The aircraft program is under wraps to the extent that the Pentagon did not even admit that there is a program at all until recently, let alone giving out details about the project. A spokeswoman with the US Air Force was quoted as saying, “Specific LRS programmatic details are protected with enhanced security measures.”

    Known Facts

    Not much is known about the new long range strike bomber, except that there is an aircraft program called the “LRS-B” program, and it is highly classified. What is also known, is that money to the tune of $300 million has been allocated for the defense project for the fiscal year 2013-14, and the total money allocated so far from 2013 to 2017 is estimated to be about $6.3 billion. The B-3 bomber as it has come to be called will be long range, optionally-manned, and it will have stealth properties. This bomber aircraft will have a price tag of about $550 million apiece. The entire fleet of about 80 to 100 stealth bombers is expected to be commissioned by 2020.

    The B-3 bomber is a replacement of the B-2 bomber, which in turn was a replacement for the B-1. So, let us take a look at the previous versions of the ‘B’ series of strike bombers.

    A B-1B Lancer with wings swept full forward
    A B-1B Lancer with wings swept full forward (Photo credit: Wikipedia)

    The B-1 Bomber

    The B-1 Bomber was introduced in 1986 as a replacement of the B-52 Stratofortress. This bomber aircraft was built by Rockwell International, and there were two versions. An initial version was actually in existence since 1974, called the B-1A. It was capable of carrying nuclear bombs, flew at twice the speed of sound at high altitudes and could also carry short-range attack missiles. It also had stealth features, meaning that it had the ability to lower its visibility on radar to 1/100th of the B52, but this also had an adverse effect on the speed of the aircraft. During the period of 1984 to 1988, the US Air Force built its B-1 Bomber aircraft fleet up to 100.

    A U.S. Air Force Boeing B-52H Stratofortress s...
    A U.S. Air Force Boeing B-52H Stratofortress static display with weapons, at Barksdale Air Force Base, Louisiana (USA), in 2006. (Photo credit: Wikipedia)

    The second version, the B1-B is also supersonic, but its normal cruising speed is subsonic – about Mach 0.9 which is 670 miles per hour. It can fly at an altitude of as low as 200 feet above the ground. It can carry up to 24 nuclear bombs and has a flying range of 4,600 miles (7,400 kilometers) without having to refuel.

    B-2A Block 10 (upgraded to Block 30) Spirit, 8...
    B-2A Block 10 (upgraded to Block 30) Spirit, 82-1069, “Spirit of Indiana”, of the Eighth Air Force 509th Bomb Wing (Photo credit: Wikipedia)

    The B-2 Stealth Bomber

    The specialty of the B-2 Stealth Bomber is that its development marked the integration of aerospace technologies with conventional aviation technology. It is a versatile aircraft, capable of delivering nuclear as well as conventional weapons.

    The B-2 Bomber was developed by Northrop, Boeing in the late eighties, the first successful flight of the B-2 Bomber took place in July 1989. This bomber aircraft is built on the lines of the B-35 of the 1940s. The bodywork mostly consists of resin-impregnated graphite fiber.

    More on the LRS-B Long Range Strike Bomber

    Due to the utmost secrecy being maintained by the Pentagon, Northrop Grumman also seems to have been sidetracked and is non-committal on the matter (of the B-3 Bomber). Even though Northrop has not put in a bid yet, it is unknown whether they will now or will compete for the LRS-B contract at a later stage. It has been speculated that maybe it is just waiting for better terms, or a more defined scope of work on the project. Boeing and Lockheed Martin have joined hands in a bid to win the high-budget project and have been approached by the Pentagon. Boeing will be the main contractor and an announcement to this effect was made in October 2013.

    The Downside of Secrecy

    It has been said that excessive security can have a negative effect on development. In a recent article published in The Daily Beast, Bill Sweetman says this about the B-3 Stealth Bomber, “… almost everything about it is secret, and that’s not necessarily a good thing.” Sweetman goes on to point out that the secrecy associated with the Long Range Strike Bomber is the highest in the history of all similar projects since the 1980s. He says that while developing the B-2, certain features were developed, but never used and will never be used. Due to this reason, there were people working within a “security bubble”, who had a free hand in doing just as they pleased, as they were shielded from public scrutiny. The above reason is why some projects overrun their budgets.

    Secrecy, to a point is acceptable, especially when a military weapon is being developed. But secrecy beyond reasonable limits can result in impractical technical development with a series of budget overruns, which could ultimately threaten the very existence of the project. An official announcement is expected sometime in 2015 regarding the confirmation of this aircraft program. Until then, the world will just have to rely on snippets about this much-needed, futuristic Long Range Strike bomber.

  • RQ-170 Sentinel Drone – The US Air Force’s Stealth Drone

    RQ-170 Sentinel Drone – The US Air Force’s Stealth Drone

    History

    The US Air Force and the Pentagon have been pursuing their drone development program since 1995, the most prominent drone series being the Predator series (A, B & C). Today, it is a full-fledged operation. One of the latest projects now being pursued is the US Air Force’s RQ-170 Sentinel Drone, manufactured by Lockheed Martin. The US Air Force has not released much information about this drone. However, this US drone is known to be a stealth aircraft, fitted with reconnaissance equipment for the purpose of gathering data from non-cooperative countries such as Iran, Iraq and Afghanistan. It is being used since 2011, when it was launched during the ongoing war in Afghanistan, called “Operation Enduring Freedom”.

    It is also worthwhile to note that this US drone was used quite effectively for tracking down Osama Bin Laden, the mastermind of the 9/11 attacks. The system is believed to have been set up in the Pakistani town of Abbottabad where the terrorist was believed to have been hiding, in a heavily guarded compound, with the full knowledge of the Pakistani authorities. It was through the data fed to the Navy SEALs from the Sentinel system that they were able to penetrate the compound and terminate this dreaded terrorist on the spot.

    The RQ-170 Sentinel has also been used in South Korean airspace, which would have been obviously for the purpose of spying on activities in North Korea.

    Lockheed Martin RQ-170 Sentinel
    Lockheed Martin RQ-170 Sentinel (Photo credit: Wikipedia)

    Duplication of the Sentinel

    In December 2011, an RQ-170 Sentinel was sent into Iran on a reconnaissance mission. The Iranian armed forces intercepted the drone and hacked into its navigation systems, managing to capture it. They claimed that they had been able to duplicate it by decoding the software and using reverse engineering. Although, the claims were stated as being fake by a former Pentagon official, the Iranians stuck to their story and showed video footage of the drone.

    The landing gear, however, was covered by a banner stating, “We’ll trample America underfoot” and “the US cannot do a damn thing.”

    The RQ-170 Sentinel has also been copied by the Chinese who released pictures of the copied drone along with some other aircraft.

    Specifications

    The specifications the US drone described here are not official, as there are no official documents available, due to the highly classified nature of the RQ-170 Sentinel project, as it is being kept under wraps by the CIA and the Pentagon. However, what has been reproduced here, are as accurately-possible facts, which should give a fair picture about the Sentinel and its capabilities.

    The RQ-170 Sentinel by Lockheed Martin is a rather new addition to the United States Air Force’s fleet of Unmanned Aerial Vehicles (UAVs). It is a stealth vehicle, which is supposed to be a cost-effective drone with added qualities put on to existing design features. The purpose of the Sentinel is for surveillance and reconnaissance of enemy territories from a high altitude. The drone is mostly connected to CIA missions, which is the reason most of the information on it remains classified by the Pentagon and unavailable to the general public.

    A B-2 Spirit soars after a refueling mission o...
    A B-2 Spirit soars after a refueling mission over the Pacific Ocean on Tuesday, May 30, 2006. The B-2, from the 509th Bomb Wing at Whiteman Air Force Base, Mo., is part of a continuous bomber presence in the Asia-Pacific region. (U.S. Air Force photo/Staff Sgt. Bennie J. Davis III) (Photo credit: Wikipedia)

    Looks-wise, the Sentinel is more of wing, with less of vertical tail surfaces. The wing structures are swept towards the rear of the aircraft, giving it the appearance of the B-2 Spirit Stealth Bomber. It is powered by a single General Electric TF34 series turbofan engine. The payload region is also located in the central area. The abundant wings serve the purpose of offering extra fuel storage. The undercarriage is in a regular tricycle configuration with two main landing wheels and a single landing gear in the nose section.

    The aircraft is equipped with a full suite of cameras and sensors. There are full motion real-time cameras and radioactive isotope-detecting sensors for locating nuclear material. It is assumed that the drone is also armed with missiles, in the same way that the Predator is. It is also understood to have the latest infra-red and other optical devices fitted.

    The maximum altitude observed by this drone is at least 50,000 feet. The wingspan is estimated at 26 meters, with a height of 1.84 meters and a length of 4.5 meters.

    Future Prospects of the Sentinel

    It would seem that the Sentinel has had a rather big setback with the copying of its design by the Iranians. Although there is no information forthcoming from the Department of Defense, the Pentagon, US Air Force or the CIA, there is no dearth of information emanating from Iran regarding the Sentinel and future plans. RT.com News published an article in May 2014 quotes a statement made by Iranian leaders who said that their engineers have managed to decode the drone’s technology and copy it. There will soon be a test flight, they promised.

    From what we see, the RQ-170 Sentinel is definitely here to stay, but if the US military is to keep the technology to itself, it is going to have to figure out how to keep its classified secrets from falling into enemy hands, as has been the case in the recent past.