Aviation
5 Airplane things you Dont know the purpose of
Airplane things you Dont know the purpose of
1-The mysterious triangle symbol over your seat; it comes in red or black and are used to indicate the best vantage points and the window under the sticker provides a good view.
2-The flange sticking out of the wing is a part of the evacuation system. If the plane is forced to land somewhere that you can’t use stairs or terminal boarding bridge, you will have to exit through the over wing using the guide ropes tied around these flanges.
3-The humming sound when you board the plane is the sound of the auxiliary power unit[APU] which provides electricity to the plane temporarily until the plane is ready to take off.
4-Tomato juice is suggested to have instead of other food because the sweetness of the taste buds reduces while flying high and the sense of smell is decreased.
5-The isty bitsy hole in the bottom of your airplane window is actually a very important safety feature. It is called a breather hole and is used to regulate the amount of pressure that passes between the window’s inner and outer panes.
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Aviation
Engine Playing Hide and Seek with the Tejas Fighter Jet
India’s most anticipated fighter jets are encountering hurdles before they can enter the defense field due to engine delays affecting the manufacturer.
The Air Force has placed a significant order with HAL for 40 aircraft, but the Tejas Mk2 is also experiencing delays because of issues with its new variant engine.
The development of the Tejas fighter jet has indeed faced challenges, particularly in securing a reliable engine that meets its performance and operational standards. The journey has felt like a game of “hide and seek.” Here’s a brief overview of the key developments:
- Original Engine Choice: The Tejas program originally relied on the General Electric (GE) F404 engine. While this engine served well during the early development and flight testing, it was clear that the Tejas Mk1 version needed more powerful propulsion for future variants.
- Indigenous Kaveri Engine: The Defence Research and Development Organisation (DRDO) was tasked with developing an indigenous engine called Kaveri. However, the Kaveri program faced multiple delays and technical failures, never reaching the necessary thrust levels required for the Tejas Mk2 and beyond. As a result, the Kaveri project was essentially shelved for the Tejas program, with DRDO still pursuing its development for other platforms.
- GE F414 Engine: To meet the higher power demands of the upcoming Tejas Mk2 and the naval variant, India chose the GE F414 engine. This engine is significantly more powerful than the F404, and the Mk2 variant is being designed around this engine. However, contract negotiations and other delays often slowed down its adoption.
- Ongoing Engine Uncertainty: The Indian Air Force (IAF) and the government have continued to explore indigenous options for the Tejas engine, while also relying on foreign engines like the F404 and F414. The situation often feels like a back-and-forth process, with no single solution sticking permanently, leading to the perception of an “engine hide-and-seek” scenario.
This complex journey is a key part of the Tejas’ development challenges, but progress is being made with the F414 powering the next iterations of the fighter jet.
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