Jason Sahl’s Post

Krueger Flaps Krueger flaps are high lift devices that are fitted to all or part of the leading edge of the wings of some aircraft types. The aerodynamic effect of Krueger flaps is similar to that of slats; however, they are deployed differently. Krueger flaps are mounted on the bottom surface of the wing and are hinged at their leading edges. Actuators extend the flap down and forwards from the under surface of the wing thus increasing the wing camber which, in turn, increases lift. Krueger Flap Early generation jet airliners such as the B707 Series utilized Krueger flaps as their sole leading edge high lift devices. Current generation aircraft use either all slats or a combination of slats and Krueger flaps. Examples of the latter configuration include the B747 and the BOEING 737-700.

Krueger Flaps Krueger flaps are high lift devices that are fitted to all or part of the leading edge of the wings of some aircraft types. The aerodynamic effect of Krueger flaps is similar to that of slats; however, they are deployed differently. Krueger flaps are mounted on the bottom surface of the wing and are hinged at their leading edges. Actuators extend the flap down and forwards from the under surface of the wing thus increasing the wing camber which, in turn, increases lift. Krueger Flap Early generation jet airliners such as the B707 Series utilized Krueger flaps as their sole leading edge high lift devices. Current generation aircraft use either all slats or a combination of slats and Krueger flaps. Examples of the latter configuration include the B747 and the BOEING 737-700.

#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

Ever wondered why T-tails are so popular in business jets but rarely seen in military or commercial aviation? ✈️ The answer lies in the unique advantages and trade-offs of this design. Placing engines on the tail gives business jets a quieter cabin for passengers and improves wing aerodynamics (Gulfstream does this best!). But, this setup comes with a few challenges: Reduced Maneuverability: At certain pitch angles, T-tail aircraft can be more prone to stall. Increased Maintenance Complexity: With engines mounted high on the tail, routine maintenance and engine replacements are more challenging—and sometimes a real nightmare! #AviationDesign #AircraftEngineering #BusinessJets #TTail #AircraftMaintenance #AviationInsights #JetPerformance #Aerodynamics #FlightSafety #AviationExperts"

Reliable folding mechanisms for #future more efficient #aircraft platforms at #ILABerlin. ✈️ ➡️ Large wingspan and still suited to the #airport infrastructure? The folding wing tip actuation system, which we developed for the Boeing #777X familiy, makes it possible. The larger #wingspan increases fuel #efficiency of the aircraft. On the ground, however, the tips of the wings fold simply, reducing the wingspan from 71.8 metres to 64.9 metres. This allows the 777X to use the same airport gates as all other 777s, a great convenience for #airlines and passengers. It is the first time in history that a commercial airliner features a folding wing tip – made possible by our technology. 💪 Under the ILA motto #PioneeringAerospace you can see a moving model of the #Boeing 777X folding wing tip at our booth #100, Hall 2 at ILA Berlin from June 5 to 9, 2024. Feel free to drop by! ✈️ 👉 If you want to see the folding wing tip in action before then, take a look at our video: https://lnkd.in/dRKm7PeY #liebherr #innovation #aviation

Boeing 707 Fuselage Legacy (sound ON for easy narration)... 1,000 x 707s; 2,000 x 727s; 12,000 x 737s & 1,000 757s share the same original 707 fuselage design. Enabling Boeing to pool resources & use the same tooling, over & over again. As we look back on the milestones that have shaped the aviation industry, it's hard not to marvel at the ingenuity and foresight embedded in the design of the Boeing 707, which was later directly used as the fuselage cross-sections of; 720, 727, 737 & 757. The 707 wasn't just a breakthrough in commercial aviation; it was a foundational blueprint that set the stage for a series of innovative Boeing aircraft, demonstrating the power of leveraging a successful design... Next story: Which Country, Surprisingly, Owns the USA's Largest Refinery? https://lnkd.in/g_DQQJFu

Flexing of Boeing 747's wing in turbulence! The Boeing 747's wings are designed to flex during flight, including in turbulence. This flexing is a normal and intentional part of the aircraft's design. The wings are built to withstand a significant amount of stress and are designed to flex to distribute loads and enhance stability during various flight conditions, including turbulence. This flexibility helps to reduce the overall stress on the wings and the aircraft's structure, ensuring safe and efficient operation. The wings of a Boeing 747 have a surface area of about 510 square meters (5,500 square feet) and can produce as much as 390 tons (850,000 pounds) of lift. Video Source: factmayor @Instagram #mechanicalengineering #mechanical #aerospace #aerodynamics #automotive #cfd #turbulence

🔍 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

"Today, in 1982, the prototype Boeing 757 (N757A) took to the skies for the first time from Renton Municipal Airport (RNT), Washington." To read more, click the picture below to view the article about this flight! #boeing #champion #aerospace #aviation #history #championaerospace #sparkigniteexcite

What's New to TheStreet... ✈️ Boeing 777X Faces New Setback: Structural Cracks Discovered ✈️ During initial test flights, cracks were found in the structure of Boeing’s 777X jetliner, adding to the challenges of this long-delayed aircraft. 🛠️🚨 What do you think this means for the future of the 777X? Share your thoughts below!💬⬇️ 👉🏻Follow New To The Street for more! #boeing #aviationnews #777X #aircraft #aerospace #businessupdate #innovation #businessnews #business #news #newtothestreet