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Aerospace

GE Highlights Sustainable Aviation Fuel in Testing 10 Different Engines

GE Highlights Sustainable Aviation Fuel in Testing 10 Different Engines

After completing testing on its tenth engine model running exclusively on Sustainable Aviation Fuel (SAF) since 2016, GE Aerospace achieved a significant milestone towards a more sustainable future of flight.

This confirms that the company and its joint ventures have one of the industry’s largest programmes for testing alternative fuels.

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Additional engines include F414, GE9X, LEAP-1A, Passport, GEnx, HF120*, and CFM56 engines that were tested at the component, engine, or aircraft level using 100% SAF. The extensive battery of tests covers a variety of propulsion systems utilized in business and general aviation, military aviation, and domestic and international commercial aviation.

Numerous other variables were also assessed in these tests, including engine performance and the effect of 100% SAF on emissions and contrails. Approximately three-quarters of all commercial flights worldwide are powered by GE Aerospace and its joint ventures.

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GE Aerospace is moving from engine system testing to engine component and sub-component level evaluations to aid in the qualification of new 100% SAFs. This includes assessing all parts affected and exposed to fuels, ranging from the fuel system of the engine to the combustor, which burns the fuel. Tests are being conducted on different types of SAF produced from different pathways to determine if there is any effect on engine operability, efficiency, durability, and emissions.

Additionally, GE Aerospace is an inaugural investor in the United Airlines Ventures Sustainable Flight Fund to help increase the supply of SAF.

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IndiGo to Order 100 Small Planes from Airbus, ATR, or Embraer

IndiGo to Order 100 Small Planes from Airbus, ATR, or Embraer


IndiGo, India’s leading airline, is in talks with three aircraft manufacturers to acquire a fleet of at least 100 smaller planes, aiming to bolster its regional operations, as per a report by the Economic Times.

The airline’s recent order of 30 A350 aircraft underscores its strategic focus on expanding its reach with wide-body and long-range planes, targeting increased traffic from various regions across the country.

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Now, the focus shifts to enhancing connectivity on shorter routes within India’s domestic network, tapping into the regional airline market. IndiGo is currently in discussions with ATR, Embraer, and Airbus for this purpose. With 45 ATR-72 aircraft already in operation, accommodating 78 passengers each, and five more expected this year, the airline is leaning towards ATR, although Airbus A220 and Embraer’s E-175 remain contenders.

Having established itself as a key operator of Airbus A320 aircraft, with over 450 on order for future delivery, IndiGo continues to strengthen its fleet.

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This move follows closely on the heels of the recent agreement to purchase 30 Airbus A350-900 aircraft, a significant step that will facilitate the airline’s expansion both domestically and internationally. This deal marks IndiGo’s entry into the wide-body aircraft segment, further solidifying its position in the market.

IndiGo’s strategy includes penetrating tier 1, 2, and 3 cities within India’s regional aviation market using smaller aircraft.

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As India maintains its status as the world’s fastest-growing aviation market, airlines are striving to meet the escalating demand amid challenges faced by aircraft manufacturers in meeting production targets.

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India is currently in the process of developing its own 72-seater aircraft.

India is currently in the process of developing its own 72-seater aircraft.

India stands on the cusp of pioneering its aircraft development, a potential reality in the near future. With the Indian aviation market poised to become one of the world’s top five largest markets, there’s a burgeoning demand for carriers like Indigo, Air India, and Akasa. Together, they’ve placed orders for over 1400 aircraft from Boeing and Airbus, marking one of the highest orders in the aviation industry.

‘Made in India’ passenger aircraft.

To transform the dream of a ‘Made in India’ passenger aircraft into reality and propel the local aerospace ecosystem, India requires a comprehensive National Aerospace Policy. Notably, Airbus and Boeing have yet to establish final aircraft assembly lines (FALs) within India, spurred by the significant orders received.

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India has exerted considerable pressure to establish assembly lines domestically, mirroring the success of similar initiatives abroad. With its aviation market growing at an unprecedented rate, India boasts the largest order book for new aircraft, estimated at a staggering $70 billion over the next decade. Existing airports bustle with travelers while new ones are either under construction or in the planning phase.

The timeline for India to realize the Prime Minister’s vision of a Made in India commercial aircraft hinges on various factors. Leveraging its prowess in exporting IT services and aerospace technologies, India is poised for the next stage of development.

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The success rate of China’s C919 and ARJ21.


In the realm of commercial aerospace manufacturing, Europe and the US have long held the reins, but China has emerged as a formidable contender in recent years. China’s journey began in 2002 with the ARJ21, a regional jet, and later the C919, a larger narrow-body aircraft. While the ARJ21 encountered delays and is seen as a modest achievement, the C919 boasts over one thousand orders, marking a significant success.

Both programs heavily rely on foreign technologies sourced from global original equipment manufacturers (OEMs), underscoring the importance of collaborations and creating an appealing environment for foreign companies to operate within China.

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Indian HAL has 80 years of history.

India, too, boasts a rapidly growing aerospace sector that traces its roots back to pre-independence times, predating China’s endeavors by over 60 years. Hindustan Aeronautics Ltd (HAL), initially established as Hindustan Aircraft Ltd in 1940, spearheaded this journey. Given its early establishment, India was poised to become a major player in aerospace manufacturing.

HAL shoulders much of the responsibility for developing aircraft for defense purposes, including the TEJAS, attack and multirole helicopters, trainer aircraft, and notably, the Dornier D228, a passenger version aircraft representing a significant breakthrough for the Indian Aerospace Industry. Demand for helicopters is also on the rise, further showcasing India’s potential in the aerospace domain.

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India’s aviation market Demand.


One drawback in the defense sector is the inherent uncertainty surrounding government budgets and delays in allocating funds for helicopter purchases. On the civilian front, aircraft demand remains consistently high, especially when they meet passenger needs and receive regular approvals from authorities.

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India’s aviation market is distinct, calling for unique aircraft programs. With a high density of flyers, there’s a prevalent preference for short-haul flights from rural areas to major cities. As the air travel network expands to Tier-2 and Tier-3 cities, the number of operational airports is expected to surge from the current 140 to 230-240.

The demand for smaller aircraft, particularly for serving Tier 1-3 cities, is paramount for airlines. While the Dornier aircraft has been utilized for some routes, its availability limitations and noise levels have raised concerns. Jet planes emerge as preferable options for Indian travelers due to their efficiency and comfort, aligning better with the needs of airlines.

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Establishing a sustainable aircraft program requires long-term commitment and substantial risk capital, often necessitating government support akin to what’s observed in developed markets. For instance, COMAC, over its lifetime, received significant state-related support ranging from $49-72 billion, while Airbus, over the years, obtained $22 billion from the EU.

Encouraging private investment is crucial for fostering growth in the aerospace sector and nurturing indigenous aircraft development in India. Such initiatives could significantly bolster the country’s aviation industry and enhance its self-reliance in this critical domain.

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Indian Regional Jet (IRJ).


Introducing the Indian Regional Jet (IRJ), a cutting-edge project led by India’s National Aerospace Laboratories (NAL) and set to be manufactured by Hindustan Aeronautics Limited (HAL). This regional airliner aims to redefine air travel with its design, offering a capacity of 80–100 passengers. The base model, known as the RTA-70, will boast 80–90 seats while distinguishing itself with a cost that’s 20 percent lower than its global counterparts.

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Development is well underway, with plans for a 90-seater variant expected to take flight by 2026. This next-generation aircraft promises impressive specs, including a range of 1,350 nm (2,500 km), and requiring a take-off and landing field length of 900m (2,950 ft). With dimensions of 28.6m in length and a wingspan of 29.4m, it reaches a service ceiling of 30,000 ft and cruises at 300kt, all while meeting Stage 4 noise criteria.

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Saras Aircraft.

Meanwhile, NAL’s innovative spirit extends to the NAL Saras, another project in the works. Already, prototypes like the Mark1 and its successor, the second version dubbed ‘Mark 2,’ are pushing boundaries. The Saras Mark 2 showcases versatility, offering ranges of 600 km with 19 passengers, 1,200 km with 14 passengers, and an impressive 2,000 km with eight passengers. With a top cruise speed exceeding 600 km/h and an endurance of six hours, it’s a game-changer.

Weights
Max. take-off : 7600 kg (16755 lb)
Operating empty wt. : 5100 kg (11244 lb)
Max. fuel weight : 1832 kg (4039 lb)
Max. pay load : 1710 kg (3770 lb)

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Power plant
SARAS is powered by two Pratt and Whitney Canada.
PT6A-67A turbo-prop engines (flat rated to 1200 shp)
driving 2.6 m diameter 5 bladed constant speed propellers
at 1700 rpm in a Tractor configuration.
Main dimensions
Span : 18 m (59.05 ft)
Length : 17.3 m (56.8 ft)
Height : 5.5 m (18 ft)

Performance (ISA)
Take-off distance : 820 m (2690 ft)
Landing distance : 665 m (2182 ft)
Max. rate of climb : 10 m/s (1980 ft/min)
Max. range* (19 pax) : 750 km (405 nm)
Max. range* (10 pax) : 2350 km (1270 nm)
Ferry range* : 2400 km (1295 nm)
Max. cruise speed : 485 km/hr (260 Kts)
Endurance : 6 hours . With 45 min reserve

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Equipped with propeller engines initially, the Saras is poised for future upgrades to jet engines if project requirements align. NAL’s ambition shines through in its cost-effective approach, targeting ₹50 crore per unit for the Saras Mk2, undercutting the ₹55 crore Dornier 228 with its unpressurized cabin and altitude restrictions. Anticipating government support, NAL aims to secure orders for 50-60 units to ensure manufacturing viability, with an initial order of 15 aircraft from the Indian Air Force potentially expanding to 120–140 units in the coming years.

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Top 10 world’s best military drones in 2024 

Top 10 world’s best military drones in 2024 

In an age defined by rapid technological advancement and strategic military innovation, the role of unmanned aerial vehicles, commonly known as drones, has become increasingly pivotal on the modern battlefield.

As we step into 2024, the global landscape of military drones continues to evolve, with nations investing heavily in cutting-edge technologies to maintain superiority in reconnaissance, surveillance, and combat operations.

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Join us as we delve into the top 10 military drones that are shaping the future of warfare, showcasing their capabilities and impact on the ever-changing theater of conflict.

1. Boeing MQ-28 Ghost Bat :This aircraft represents a cutting-edge advancement in unmanned combat aerial vehicles, currently under development by Boeing Australia. As a Loyal Wingman class aircraft, it is engineered to seamlessly integrate with existing military aircraft, enhancing and extending airborne missions through its stealth capabilities and multirole functionality. With an impressive range surpassing 2,000 nautical miles and a combat radius of 900 miles, it promises to revolutionize aerial operations. Anticipated to join the ranks of the RAAF in 2024-25, these unmanned platforms herald a new era in military aviation.

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2.The Bayraktar TB2: stands as a formidable medium-altitude long-endurance (MALE) unmanned combat aerial vehicle, crafted by the Turkish company Baykar. Renowned for its prowess, Bayraktar drones have found their way into the arsenals of numerous nations worldwide, seeing action in various conflicts including the Russian invasion of Ukraine and the Tigray War. Featuring a sleek blended wing body design complemented by an inverted V-tail structure, the TB2 platform exemplifies innovation in aerial technology. With an approximate price tag of 5 million US dollars per unit, it represents a significant investment in defense capabilities.

3. Bayraktar Kızılelma: A cutting-edge project by Turkish defense company Baykar, introduces a single-engine, low-observable, carrier-capable, jet-powered unmanned combat aerial vehicle. It boasts a sleek, supersonic airframe designed for reduced radar cross-section (RCS) and is outfitted with an advanced AESA radar system. Its operational combat radius spans 500 nautical miles. Weighing in at a maximum takeoff weight (MTOW) of 6,000 kilograms (13,200 lb), it reserves 1,500 kg for payload capacity. Already, two prototypes have been manufactured, with plans for operational deployment expected by 2025.

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4. XQ-58 Valkyrie: is a cutting-edge unmanned flying machine (drone) built for the U.S. Air Force. Designed by Kratos Defense, this high-tech aircraft is like a silent wingman, following a manned fighter jet and carrying out various missions. These missions could include scouting ahead for dangers, providing extra firepower, or even acting as a decoy to protect the manned aircraft. It boasts a maximum range extending approximately 3,000 miles, with a hefty maximum launch weight capped at 6,500 pounds. This figure includes the capacity to accommodate up to 600 pounds within its internal payload bay and an additional 600 pounds beneath its wings.

5.TAI Aksungur: is a heavyweight drone built for the Turkish Armed Forces. Designed by Turkish Aerospace Industries, it boasts an impressive wingspan of 12 meters (39 feet) and can carry a significantly larger payload than its predecessor. The Aksungur’s central fuselage, housed beneath the wings, is the brain of the operation. The range of this drone extends to 6,500 kilometers and payload capacity is 750 kg. It carries all the avionics, camera systems, and sensors the drone needs to function. An additional camera mounted on the chin provides a clear view directly below the aircraft.

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6.Hongdu GJ-11: It is Sharp Sword is a marvel of Chinese aviation technology. This unmanned aerial vehicle (UAV), also known as a drone, is designed for stealth and long-range combat missions. The Sharp Sword’s tailless flying wing design makes it difficult to detect on radar. Internally, it houses two weapon bays, allowing it to carry a variety of armaments for air-to-surface strikes.

While the exact engine remains unknown, reported specifications boast an impressive range of 2,485 miles (4,000 kilometers) and accommodates internal weapons bays capable of carrying payloads of up to 2,000 kilograms (4,400 lbs). This combination of stealth, firepower, and range makes the GJ-11 a significant player in modern aerial warfare.

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7.Dassault Neuron: is a pioneering unmanned combat aerial vehicle (UCAV) built through a collaborative effort by European nations. This high-tech drone serves as a technological demonstrator, paving the way for future autonomous combat aircraft.

Designed for stealth and independent operation, the nEUROn is built to handle the toughest combat environments. With a sleek design measuring 10 meters long and 12 meters wide, it has an estimated unit cost of €25 million if a production version were built. The nEUROn’s demonstrator model weighs approximately 5 tons and showcases the potential for future European-built combat drones. It has capability to transport two laser-guided 250 kg bombs, each housed in its own weapon bay.

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8.The Sukhoi S-70 Okhotnik-B: also known as Hunter-B, is a formidable unmanned combat aerial vehicle (UCAV) under development by Russia’s Sukhoi company. Designed to strike fear into the hearts of enemies, this high-tech drone is built for stealthy operation.

The Okhotnik-B boasts a flying-wing design, a favorite technique for minimizing radar detection. Its construction incorporates composite materials and special stealth coatings to further reduce its radar signature.Powering this aerial predator is an AL-31 turbojet engine, allowing it to reach estimated speeds of 1,000 kilometers per hour with a range of 6,000 kilometers.

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9.The Northrop Grumman X-47B: is a groundbreaking unmanned combat aerial vehicle (UCAV) designed for launching and landing on aircraft carriers. This American marvel, developed by Northrop Grumman, is a tailless jet with a unique blended-wing-body design. This design helps it cut through the air efficiently. It can operate semi-autonomously, meaning it can fly pre-programmed missions with some human oversight.The X-47B can refuel in the air, extending its range for even longer missions at sea. The X-47B drone boasts an approximate range of 2,100 nautical miles.

10.CAIG Wing Loong II:

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The Chengdu GJ-2, also known as the Wing Loong II, is a powerful unmanned aerial vehicle (UAV) built for long-range strikes. Developed by the Chengdu Aircraft Industry Group, this drone can be controlled remotely or fly autonomously using pre-programmed missions.

An upgrade from its predecessor, the Wing Loong I, II boasts a larger body and wider wingspan, allowing it to carry an impressive payload. This drone can pack a punch with up to 480 kilograms of laser-guided bombs and missiles. The manufacturer even claims it has the potential to carry air-to-air weaponry, making it a versatile threat in the skies.It can carry a maximum payload of 400 kilograms.

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