Russia to Deliver 18 Used Su-30K Fighter Aircraft to Angola

Russia is to deliver 18 used Su-30K fighter aircraft to an unspecified African country, which is presumed to be Angola. Twelve aircraft will be delivered initially, followed by another batch of six.

The Su-30K aircraft in question formerly belonged to the Air Force of India and were part of the initial aircraft supplied as part of the Su-30MKI deal agreed to in 1996 between Russia and India.

At the time of signing, the Su-30MKI did not exist, but was a paper design that would have to be developed. Basically, the Su-30MKI is a modified version of the Russian Su-30MK, but with certain Russian components such as the avionics replaced by western or Indian parts.

It also incorporated features found in the more advanced Su-35 / Su-37. Unlike the basic Su-30MK, the Su-30MKI features canards as in the Su-35 and thrust-vectoring engines as in the Su-37.

According to the 1996 deal, 40 Su-30 aircraft would be build in Russia and delivered to India, which was later increased to 50 when India bought another 10 aircraft in 1998.

India Receives the Former Admiral Gorshkov Aircraft Carrier INS Vikramaditya From Russia

After several years of protracted delay and development, Russia has now handed over the aircraft carrier INS Vikramaditya to India. The INS Vikramaditya was formerly known as the Baku in the Soviet Union and later renamed as the Admiral Gorshkov.

The Admiral Gorshkov was the fourth and last member of the Project 1143.4 or (Modified) Kiev class of heavy aviation cruisers that carried fixed-wing aircraft such as the Yak 38. Specifications of the Baku included:

• Length 273 m
• Beam 32 m
• Draught 9.4 m
• Maximum displacement 44500 tons

Despite belonging to the same class, the Baku incorporated a number of differences compared to its sister ships, such as:

• Replacing the 4K60 Shtorm (SA-N-3 Goblet) and 9K33 Osa (SA-N-4 Gecko) with the 3K95 Kinzhal (SA-N-9 Gauntlet) surface-to-air missiles.
• Four additional P-500 Bazalt (SS-N-12 Sandbox) long-range supersonic anti-ship missiles for a total of 12 missiles.
• Replacing the 76 mm guns with 100 mm guns.
• Installation of the latest electronics and other systems.

The Baku was laid down in 1978, commissioned in 1987 and withdrawn from service in 1996. In 1994, the ship suffered an explosion in the boiler room which had to be repaired.

Japan Plans to Strengthen Defenses by Acquiring 2 Additional Aegis Destroyers

The Japanese Defense Ministry has expressed its plans to supplement its six existing Kongo and Atago class destroyers with two additional units, which like their predecessors will also feature the Aegis system.

Japan currently has four Kongo class destroyers, which are roughly based on the Arleigh Burke class and two improved versions known as the Atago class. The Kongo class ships were commissioned between 1993 and 1998 and the Atago class between 2007 and 2008.

The two new ships will be fitted with hit-to-kill SM-3 missiles to defend against ballistic missile attacks. Both the current SM-3 Block 1A and the next-generation SM-3 Block IIA, a joint development between Japan and the United States, will be integrated.

The SM-3 Block IIA recently completed its design phase and is expected to be available for testing in 2015. The new version will feature the ability to intercept longer-range ballistic missiles and from further out than is currently possible with the existing SM-3 Block 1A/B.

Xianglong / Soaring Dragon and the Box / Diamond Wing HALE UAV in China

China is currently in the process of testing several High-Altitude Long-Endurance (HALE) Unmanned Aerial Vehicles (UAV) which are notable for incorporating the box wing or diamond wing concept.

This feature was first displayed in model form at the Zhuhai Airshows several years ago. Since then, these initial concepts have progressed to the point that actual flying prototypes are now available.

Traditionally, aircraft with very long endurance, including HALE UAVs, had to rely on very long and straight wings. This can be clearly seen in U-2 aircraft during the sixties and more recently in the Global Hawk UAV.

Such as wing configuration gives them the ability to loiter for an extended period thanks to the lift provided by the large wing area without expending a lot of fuel. This is somewhat similar to glider aircraft.

One drawback is that a long wingspan makes the wings very rigid and drag and reduces the maneuverability of the aircraft. High G forces would cause too much stress and the wings would simply break apart.

One alternative approach to solve this problem is known as the box wing or diamond wing concept, which can reduce wingspan and drag, but without sacrificing the advantages offered by longer wings, including extended endurance.