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The design that was finally settled upon was a low-wing twinjet with a pair of Pratt & Whitney JT8D turbojets slung under the wings. These tried-and-tested powerplants had already been in service with the Boeing 737 and DC-9 for several years at this point, and they enabled Dassault to develop a slightly larger and faster aircraft than planned, seating up to 150 passengers with a larger wing offering an extended range.           The new aircraft would be called ‘Mercure’, as decided by the company’s founder Marcel Dassault who wanted to name the new aircraft after a mythological figure. Dassault opted for Mercure (or ‘Mercury’ in English), a Roman god with a winged helmet and sandals allowing high-speed travel.       Specifications  The Mercure was to be flown by a crew of three, two pilots and a flight engineer, and have a maximum capacity of 162 passengers in an all-economy layout. In terms of dimensions, it was 34.84m (114 ft 4 in) long and 11.36 m (37 ft 3 in) high, with a wingspan of 30.55 m (100 ft 3 in).   The aircraft would have a maximum take-off weight of 56,500 kg (124,561 lb) with a fuel capacity of 18,400 liters (4,900 US gal / 4,000 imp gal), and be powered by a pair of Pratt & Whitney JT8D-15 low bypass turbofan engines, each capable of generating 7,000kg (15,500 lbs) of thrust.  The Mercure had a maximum speed of 437 mph (704 km/h) and a normal cruising speed of 575 mph (926 km/h). Its maximum range was 1,295 miles (2,084 km), allowing for 4,100 kg (9,000 lb) of fuel reserves with a maximum certified service ceiling of 12,000m (39,000 ft).   The higher passenger capacity of the Mercure over the Boeing 737 (162 versus 130) meant that it could carry more people than its US rival, although operating with this number of passengers did reduce the Mercure’s range capability.  

#Avgeekfriday time again! Have you ever noticed that aircraft engines often appear slightly angled inward? There’s a fascinating reason behind it. This design feature called "toe-in," aligns the engines with the local airflow, which tends to diverge slightly outward under the wing. If the engines were mounted parallel to the fuselage, they’d move at an angle through the airflow, generating unnecessary drag. On the Boeing 747 here, this is particularly evident. Its four engines are angled 2 degrees towards the fuselage to reduce drag and improve efficiency. But what about aircraft with rear-mounted engines, like the MD80? In those cases, the opposite occurs! The engines are mounted with a slight "toe-out" to match the converging airflow at the tail. With tri-jets like the MD-11 and DC-10, it's the same situation as well, with engine number 2 being angled slightly to the back. And there you have it! Next time you see this, you’ll know why! #TDA #TouchdownAviation #Boeing747 #Engines

✈️WHY The BOEING 757 IS CALLED The LAST OF The MUSCLE JETS 📌The Boeing 757 is often called the last of the muscle jets because of its powerful engines and impressive performance. 📌The 757 is powered by two turbofan engines, either the Rolls-Royce RB211 or the Pratt & Whitney PW2000, which can produce up to 43,500 pounds-force (193 kN) of thrust each. 📌These engines give the 757 a high thrust-to-weight ratio, which means it can take off and climb quickly and easily. 🔖 The Boeing 757 is praised for its versatility and reliability. 🔖 It can operate from short and narrow runways, as well as hot and high airports. 🔖The 757 is also known for its excellent aerodynamics and handling qualities. 🔖It has a supercritical wing that reduces drag and increases lift, as well as a conventional tail that provides stability and control. 🔖The 757 can fly at high altitudes and speeds, reaching up to 42,000 feet (12,800 m) and Mach 0.86 (570 mph or 917 km/h). 🔖The 757 has been used by many airlines around the world, as well as by private and government operators. 🔖The main reason for its demise was the lack of demand from airlines, who preferred smaller and more fuel-efficient aircraft such as the Boeing 737 Next Generation or the Airbus A320neo. 🔖The 757 also faced competition from larger and more modern aircraft such as the Boeing 787 Dreamliner or the Airbus A350 XWB. 🔖Many airlines and pilots still love the 757 for its power and performance, and some even call it their favorite aircraft. 🔖Some experts also believe that there is a gap in the market for a new aircraft that can match or surpass the capabilities of the 757. #aviation #aviationphotography #engine #aircraft #aviationdaily #safetyfirst #aviationlovers #aviationgeek #aircraftcarrier #aircraftmaintenance #aviationlife #SasidharanMurugan #Itzmemsd

🔍 Boeing 777-300ER: A Masterpiece of Engineering Take a closer look at the intricate systems that power one of the most advanced long-range aircrafts in the world, the Boeing 777-300ER. This technical layout showcases the seamless integration of its General Electric GE90-115B engines, fuel systems, APU, and flight controls, all working together to ensure safety, performance, and efficiency. 💡 Key Highlights: - Engines: The GE90-115B, a powerhouse delivering unmatched thrust and reliability. - Fuel Management: Advanced systems optimizing fuel consumption for long-haul flights. - Pressurization & Air Systems: Cutting-edge technology ensuring passenger comfort at cruising altitude. - Flight Controls: Robust systems offering pilots precision handling and flight stability. This diagram is a testament to Boeing's innovative engineering approach that enables efficient, safe, and high-performance flights across the globe. #Aviation #AerospaceEngineering #Boeing777 #AviationSystems #AircraftTechnology #FlightSafety #Innovation #GE90

Aircraft are designed to be as aerodynamically "clean" as possible and drag is minimized as much as practical to improve performance and decrease fuel consumption. But on descent and landing we can see all wing control surfaces in their might. Here the descending Boeing 767 extended its wing spoilers to maintain the speed limit and expedite its descent. A side effect of this aerodynamic cleanliness is that, even at idle thrust, an aircraft does not tend to slow down quickly, especially when descending. In this case they need something to slow down and even to reduce the lift. That is when spoilers are extended. They basically disrupt the pattern of airflow over the upper surface of the wing, thereby “spoiling” lift and inducing drag. The spoliers in this case are symmetrically extended by pilot selection. The maximum deflection of the panels while airborne is normally limited to an angle that is less than the deflection achieved in ground spoiler mode during landing roll. #aviation #aviationindustry #airplane #aerospaceindustry #aerodynamic #engineering #aviationtechnology #boeing

Gulfstream GV Supply chain issues. Several critical parts for the Gulfstream GV are currently experiencing supply chain issues. Avionics components, including cockpit displays and autopilot systems, are facing delays due to global microchip shortages and constraints in electronic components. This affects the availability of essential flight systems, potentially impacting aircraft operations. Landing gear components, such as actuators and shock struts, are also in short supply due to material shortages and high demand for maintenance. Additionally, APU (Auxiliary Power Unit) parts, including starters and generators, are seeing delays, affecting both new units and necessary maintenance components. These shortages can lead to extended aircraft downtime and require careful management of lead times from suppliers. Platinum Sky Maintenance, Aeromanagement Group, DEM Aviation Consulting, Advanced Aircraft Research A.. #aircraft #aircraftmaintenance #Gulfstream #GulfstreamGV #Gulfstreammaintenance #Gulfstreamsales #partsales  #aircraftmechanic #aircraftforsale #aircrafttechnician #aircraftsales #aircraftmanagement #aircraftcharter #privatejetcharter #privatejet #privateaviation #privatejetlife #privatecharter #privateflight #flyprivate #airplane #jetcharter #jet #jetlife #gulfstream #aviation #aviationindustry #aviationmaintenance #aviationlovers #fly

#snsinstitutions #snsdesignthinkers #designthinking AIROPLANE ENGINE Either CI (cubic inch) or CC (cubic centimeters) are used to describe the size of a piston engine. the Merlin engine used in many British aircraft and the Mustang, for example is 1650 CI or 27,000 CC (27 litres).21 Feb 2018Opposed, air-cooled four- and six-cylinder piston engines are by far the most common engines used in small general aviation aircraft requiring up to 400 horsepower (300 kW) per engine. Aircraft that require more than 400 horsepower (300 kW) per engine tend to be powered by turbine engines.Opposed, air-cooled four- and six-cylinder piston engines are by far the most common engines used in small general aviation aircraft requiring up to 400 horsepower (300 kW) per engine. Aircraft that require more than 400 horsepower (300 kW) per engine tend to be powered by turbine engines.The engines of a four-engined aircraft are most commonly found in pods hanging from pylons underneath the wings. This can be observed in the Airbus A340, Airbus A380, and Boeing 747. Many military airlifters also feature this design, including the Antonov An-124, Boeing C-17 Globemaster, and Lockheed C-5 Galaxy.Jet fuel is used in aeroplanes that come with jet engines, turboprops, and turbine engines. The two types of jet fuels that are available are Jet A1 and Jet A. In the United States, Jet A is used, while the rest of the world uses Jet A1.CC in Indian railways means AC CHAIR CAR . It is the type of coach in which there in no sleeping berths rather it has comfortable chairSuch class of accommodation is abbreviated as below: 1A= First AC, 2A=2 Tier AC Sleer, 3A= 3 tier AC sleeper, CC= Chair Car, FC=First Class, SL= Sleeper Class, 2S= Second Class seat. 4. Indicates originating and destination station as well as the station upto which you have sought a reservation.

The Boeing 747SP (Special Performance) is a distinctive variant of the Boeing 747, known for its unique design and exceptional capabilities. Introduced in the 1970s, the 747SP features a shortened fuselage compared to its larger siblings, which contributes to its enhanced aerodynamic performance and increased range. This aircraft was specifically engineered to meet the demands of long-haul travel, capable of covering greater distances without the need for frequent stops. It has the highest service ceiling of any subsonic passenger airliner, reaching altitudes of up to 45,100 feet. This remarkable capability allows it to operate above much of the commercial air traffic, resulting in smoother flights and reduced turbulence. The 747SP is powered by four powerful Pratt & Whitney JT9D engines, providing the necessary thrust for its impressive performance. With a typical seating configuration for around 100 passengers, the aircraft is often used for VIP transport and specialized missions, including high-profile government and corporate flights. In addition to its performance advantages, the 747SP features a spacious cabin, allowing for a range of luxurious configurations. Its design incorporates advanced technologies of its time, ensuring not only speed and efficiency but also passenger comfort. Overall, the Boeing 747SP remains an iconic symbol of aviation innovation, reflecting both the engineering excellence and aspirations of the era in which it was developed. #aviation #aviationlovers #aviationdaily #aviationgeek #boeing #boeinglovers #boeing747 #Boeing747SP #SasidharanMurugan #Itzmemsd

🔈 EN2367 Pins: Holding It All Together, One Helicopter at a Time🔈 "Think a pin’s a pin? The EN2367 series would like a word. These high-strength fasteners are crucial in keeping the core components of Airbus Helicopters locked in place, especially in high-vibration environments. We’ve done the groundwork—marking exactly where they’re used on each model, ensuring you never face downtime when you need them most. Do you know how to decode these secrets in the part number? This can be invaluable if for example you are working on an aircraft where your IPC leaves the length of the pin to your discretion. At MGC Aerospace Ltd, we stock these pins because, let’s face it, when it comes to helicopter parts, there’s no room for error." #TechnicalTuesday #HelicopterReliability #PinsWithPower #MGCStockReady

Boeing 757 Through the Years ✈️ 1982: The Boeing 757’s Debut 👇 The top image showcases the original Boeing 757 prototype, N757A, as it first took to the skies. Designed to replace the aging 727, the 757 was a groundbreaking narrow-body airliner, known for its fuel efficiency, advanced aerodynamics, and powerful engines. Its sleek fuselage, elegant wing design, and the bold “757” logo painted on its tail represented the technological leap Boeing achieved during that era. The aircraft set the standard for medium-haul flights and quickly became a favorite among airlines and passengers. 2024: A Modernized Evolution 👇 The lower image depicts the same prototype over four decades later. In 2024, N757A has undergone significant modifications, likely serving as a testbed for advanced aviation technologies. The sleek, white exterior highlights a reconfigured nose section and updated wing components, suggesting its role in testing next-generation avionics, sensors, or aerodynamic improvements. The aircraft’s transformation demonstrates its adaptability and continued relevance in modern aviation research. This timeline underscores the Boeing 757’s enduring legacy, not just as a commercial workhorse but also as a platform for innovation and technological advancement. It is a testament to the timeless engineering that has allowed N757A to remain a vital part of aviation history for over 40 years. #Boeing #BoeingLovers #Boeing757 #Boeing757Lovers #Aviation #AviationHistory #SasidharanMurugan #Itzmemsd